With the maturity of synchronous buck-boost technology, large-capacity mobile power supplies have also become popular. Since the earliest 20,000mAh power bank only has 18W fast charging, the increase in fast charging power not only shortens the charging time of the power bank, but also improves the discharge capacity of the power bank.
The increase in discharge power not only improves the experience of using the power bank, but also expands the use scenarios of the power bank, so that the mobile phone can get the experience of using the original charger. The charging head network has summarized the disassembled 20 mobile power banks that support 100W output power, let's take a look at the internal buck-boost scheme and built-in battery brand.
AOHIAOHI 30000mAh 100W Bidirectional Fast Charging Power Bank.
AOHI This mobile power supply is made of PC+ABS material shell, with V0 fire resistance, in addition, the front and back are decorated with Apple computer aluminum alloy panels with the same process, and the high-value characteristics of MagCube series products are implemented. Equipped with 1A1C dual interfaces, it supports QC, PD, PPS fast charging protocols, and has good compatibility with most brands of mobile phones, tablets and laptops on the market. The 30,000mAh capacity and 100W two-way fast charging meet the needs of groups such as business travel parties and travel parties for large-capacity and high-power fast-charging power banks.
Through the dismantling of the charging head network, it was found that the mobile power battery pack is composed of 6 BAK N21700CG-50 batteries in series, each battery is insulated, the shell is glued and an isolation plate is provided to help strengthen the battery pack and isolate it from the PCB board, and it is also equipped with a thermistor for temperature monitoring.
The PCB board is equipped with two CW1274 protection chips to protect the battery pack, in addition, there is a buck-boost circuit for USB-C port input and output, a step-down circuit for USB-A output, the controller adopts Nanxin SC8815 and SC8101 respectively, and the protocol chip adopts Xinhai Technology CS32G020K8U6 to achieve fast charging input and output. The inductor, capacitor and other devices on the board are glued and reinforced, and the overall material workmanship is good.
Related reading: 1. Dismantling report: AOHI 30000mAh 100W two-way fast charging power bank.
Aspirer is backed up by double power.
Backup double power 20000mAh 100w fast charging power bank.
This mobile power bank has a 2A1C interface, USB-C single port output is 100W, and when used at the same time with USB-A port, it supports 65+225W output, when three ports output at the same time, the two USB-A ports share 5V3A output, and the total output power is 80W. The power bank has a 65W self-charging capacity, and its own charging speed is also very fast, which is quite practical.
Through the dismantling of the charging head network, it was learned that this mobile power bank has 4 built-in 21700 batteries, and uses Yutai ETA3001 battery balancing chip to achieve voltage equalization of the battery pack, and uses Saiwei CW1243 protection chip for battery protection. The protection board and the power bank PCBA module are connected by wire soldering, which are two independent designs.
The internal buck-boost circuit is composed of Zhirong SW7201 bidirectional synchronous buck-boost controller and Chipsea CSU3AF10, which is used for USB-C port high-power charging and discharging and built-in battery charging and discharging management. The other way is controlled by Zhirong SW3516P step-down main control chip, which is a step-down output of two USB-A ports. The buck-boost controller launched by Zhirong Technology has now met the application of 100W high-power mobile power supply.
Related reading: 1. Dismantling report: 20000mAh 100W fast charging power bank with double power.
choetech Diocco.
Diok 26800mAh 100W Fast Charging Power Bank.
Diok 100W fast charging power bank adopts a metal body shell with sandblasted surface, which is not only strong and protective, but also has a good feel of use. The two A ports support QC20/3.0. AFC, FCP fast charging protocol;The C port has 5V3A, 9V3A, 12V3A, 15V3A, 20V5A and PPS voltage ranges, which has good compatibility and can be fast charged for most mobile phones, tablets and computers, and the speed is also very fast.
The charging head network is found through dismantling, and the mobile power supply is composed of a protection circuit and two independent step-up and step-down three-port output circuits. The battery cell is connected by 4 strings and 2 in parallel, which is protected by Saiwei CW1353 with Weizhao MOS, and CW1353 also has a equalization function to better protect the batteryThe USB-C circuit is controlled by the Cypress CYPD3171 protocol chip, and the input or output is realized by the Nanxin SC8815 step-up and buckThe two USB-A ports use Nanxin SC8102 for voltage reduction, which realizes the intelligent distribution of output power at the same time for fast charging and dual ports at the same time.
The power bank uses a metal body shell, which is highly protective and durableThere is a filter capacitor inside, and the output is pureThe positive and negative nickel chips of the battery cell are spot welded firmly, and the barley insulating paper is also used to tightly paste the insulation, and the thermistor is equipped with temperature monitoring, so the overall workmanship of the product is solid.
Related reading: 1. Teardown report: Choetech Diok 26800mAh 100W fast charging power bank.
denuxon Drussy.
Drusy 20000mAh 100W Bidirectional Fast Charging Power Bank.
Drusy 123W mobile power bank focuses on large-capacity, high-power, multi-device simultaneous fast charging, supports 100W PD two-way fast charging, whether it is charging equipment or its own power storage, it can quickly resurrect with full blood, and can meet the needs of people who often travel for fast charging equipment. In addition, the shell of the product is made of advanced flocking technology, and it is also carefully designed in terms of appearance and feel, which is very exquisite. Overall, it's a very comprehensive product.
Through the dismantling of the charging head network, it was learned that the design of the power bank adopts four step-up and step-down circuits, of which the C1 and C2 port circuits are controlled by Baoli Micro PL5500 and PL5501 respectively, and the output voltage is controlled by Xinhai Technology CS32G020K8U6. The USB-A port is controlled and output by Yingjixin IP6525S. In addition, the wireless charging solution adopts Yingjixin IP6826, Xinmao LP4003 step-down power supply, and the MOS tube is mainly from Nanjing Jiangzhi. Each circuit has a capacitor for filtering, a thermistor for temperature monitoring of the cell, and a protection board. Reliable workmanship.
Related reading: 1. Dismantling report: Drusy 20000mAh 100W two-way fast charging power bank.
Gadmei is a beautiful beauty.
GADMEI 100W 2C1A Bidirectional Fast Charging Power Bank.
The Candim T2100 mobile power bank adopts a classic black shell design, has 2C1A three interfaces, supports 100W+18W power output, can charge the mobile phone while supplying power to the notebook, and the power supply supports PPS protocol, and the compatibility with fast charging of Android mobile phones is also good, which can meet the daily needs of mainstream consumers.
Through the dismantling of the charging head network, it was learned that this mobile power bank has 6 built-in strings of 18650 batteries, with a battery capacity of 3200mAh, from Chuangming. The battery protection chip is from Huatai Semiconductor, and HTL6037 supports 4-7 strings of lithium battery protection function. In the mobile power supply part, a full set of Yingjixin solutions are adopted, and two DC-DC chips with high integrated protocol functions are IP5389 and IP6538 to achieve dual-port independent fast charging.
Yingjixin IP5389 integrates the synchronous buck-boost controller, protocol chip and main control microcomputer in the traditional buck-boost mobile power supply in one chip, which can meet the complete design of the mobile power supply with only one chip and provide battery temperature protection function. The IP6538 integrates a buck switch, a protocol chip, and a synchronous buck controller for car charging and power bank applications.
Related reading: 1. Dismantling report: GADMEI 100W 2C1A two-way fast charging power bank.
haycide
Haycide 20000mAh 155W Visual Power Bank.
Haycide's transparent shell power bank not only uses a color LCD screen for the display of power bank parameters, but also uses a transparent shell to observe the internal PCBA module, which is very technological. The power bank has a total output power of 155W, the USB-C1 interface supports 100W charging and discharging, the USB-C2 interface supports 11V5A PPS fast charging, and the USB-A port also supports fast charging.
Through dismantling, the charging head network learned that this mobile power supply uses four strings of 21700 batteries to form a battery pack, and uses Zhongying SH366006 protection chip to realize the protection function of the battery, and is equipped with a thermistor for temperature monitoring. The power bank has a built-in buck-boost and a step-down circuit. Among them, the buck-boost circuit adopts the CS32G020 protocol chip of Xinhai Technology and the JW3702 synchronous buck-boost controller of Jiehuate. The step-down circuit adopts Zhirong Technology SW3516H for dual-port output.
The MOS tubes inside this power bank are all from Astatine, including battery protection tubes, synchronous buck-boost switch tubes, step-down switch tubes and VBUS switch tubes, Astatine can provide a full range of MOS products for fast charging source products, including outdoor power supply, power bank, multi-port charger and car charger, etc., to meet the application of different occasions.
Related reading: 1. Dismantling report: Haycide 20000mAh 155W visual power bank.
hyper juice
Hyper Juice 2C1A 100W Bidirectional Fast Charging Power Bank.
The Hyper Juice 100W power bank has an aluminum alloy metal shell, and the surface is sandblasted, which not only feels good but also is sturdy and durable, and the 26800mAh capacity makes it possible to carry it on the plane. It is equipped with 2C1A interfaces with a maximum output power of 100W, 60W and 18W, with a total output of 130W. It can meet the fast charging needs of most mobile phones, tablets, and computers. In addition, a 100W high-quality CC data cable is included, so there is no need to purchase additional ones.
Through dismantling, it was found that this mobile power supply adopts a double-layer motherboard stacking design, using Nanxin buck-boost controller chips SC8815 and SC8701 synchronous buck-boost controllers for two-way Type-C output, and Zhirong's synchronous step-down conversion chip SW3507 for USB-A port output. As well as UMICRO UPD300DO-24QAIG interface controller, PD controller 2-in-1 ASIC chip and Tianyu FP6601Q protocol IC.
The 8 cells are all Samsung SDI INR18650-35E high-rate 18650 lithium batteries, and are equipped with Saiwei multi-string lithium battery protection IC CW1046 and Nexen's PK616BA battery protection MOS tube, in addition to thermistors for temperature monitoring, with the protection IC equalization function, can provide better protection for the battery pack. The battery cell is pasted with foam glue and barley paper for insulation protection, and the components are reinforced by glue on the PCB board, and the overall workmanship is good.
Related reading: 1. Teardown report: Hyper Juice 100W two-way fast charging power bank.
iwalk.
iWALK 26800mAh 100W Bidirectional Fast Charging Power Bank.
iwalk's 100W PD two-way fast charging power bank uses an aluminum alloy metal shell, and the surface is sandblasted, which not only feels good but also durable, and the 26800mAh capacity makes it possible to carry it on the plane. Port A supports QC20/3.0. Samsung-AFC, Huawei-FCP multiple fast charging protocols, the maximum output is 18W;The C1 port supports QC30 fast charging protocol and USB PD30 fast charging standard, up to 100W bidirectional fast charging;The C2 interface supports USB PD30 fast charging standard, up to 60W fast charging output. In addition, a 30W PD charger is included, which is fully equipped.
Through the dismantling of the charging head network, it was found that this mobile power supply has built-in chips from many well-known manufacturers, such as SC8701 and SC8815 of Nanxin Semiconductor, UPD300 of single-chip controller of Weihai Youwei Technology, DXN EUP3271 and VS3508AE and VS3618AE chips of Weizhao Semiconductor, etc., with solid materials. In addition, the inductance and solid-state capacitors on the PCB board are glued and fixed, the interface receptacle is welded through the hole, the battery cell is equipped with a thermistor, and is pasted with foam glue and barley paper for insulation protection, and the aluminum alloy metal shell makes the product more durable and the overall workmanship is excellent.
Related reading: 1. Dismantling report: iWALK 100W PD two-way fast charging power bank 26800mAh
Leemoa Murray.
Murray 30000mAh 100W 4-port fast charging power bank.
This power bank has a built-in 30,000mAh ultra-large capacity battery and supports 100W power, which can meet the long-term power supply needs of laptops. The USB-A port also supports fast charging output, and it also has good charging compatibility with traditional devices. And it supports the display of battery percentage, which is more accurate for the display of remaining power.
Through the dismantling of the charging head network, it was learned that this mobile power supply has a built-in 6 strings of 21700 batteries, and the battery adopts the CW1073 protection chip of Saiwei Microelectronics, which is used for overcharge, overdischarge and overcurrent protection of the battery pack. The mobile power supply adopts Yingjixin IP5389 synchronous buck-boost chip, which integrates protocol chips, synchronous buck-boost controller and MCU functions, simplifying the design of multi-series buck-boost fast-charging mobile power supply and reducing the overall cost.
Related reading: 1. Dismantling report: Murray 30000mAh 100W four-port fast charging power bank.
LVSUN Dragon Weisheng.
Longweisheng 20000mAh 100W magnetic wireless charging power bank.
This mobile power bank is designed with a white straight shell and has a 2C1A interface, of which the USB-C1 interface supports 100W power, the USB-C2 interface supports 45W power, the USB-A port supports 24W output, and supports 15W magnetic wireless charging. In addition, the power bank also has a 188 LED digital tube for power display, which supports charging laptops, tablets, and mobile phones, which is very practical.
Through the dismantling of the charging head network, it was learned that the internal use of 4 21700 batteries in series connection of this mobile power supply, the internal buck-boost SOC chip of the mobile power supply, the wireless charging main control and the battery protection chip are all from Yingjixin, which brings a complete solution for the high-power fast charging mobile power supply. Among them, the IP3254 battery protection chip is used for overcharge, over-discharge, and over-current protection of four strings of battery packs, and also supports battery balancing function.
The two IP5389 buck-boost SoC chips are used for the two USB-C interfaces inside the mobile power supply, and the synchronous buck-boost controller and protocol chip functions are integrated into the chip, which can simplify the design of multi-string buck-boost fast-charging mobile power supply. The wireless charging adopts IP6808, and the chip integrates the wireless charging master control and the full-bridge MOS tube driver, which supports fast charging and power extraction, and can realize the wireless charger design of a single chip.
Related reading: 1. Dismantling report: Longweisheng 20000mAh magnetic wireless charging power supply.
Move speed.
Shift speed 130w laptop mini power station.
In terms of appearance, the 130W fast-charging power bank adopts a flat shape + blue-green shell design, which is smaller than the conventional 100-watt mobile power bank, which is easy to carry betterThe output is equipped with 2C1A three interfaces, with a hidden power display, the overall style is fashionable and versatile, and the aluminum alloy shell + frosted surface treatment also improves the feel and helps the internal device module to dissipate heat.
In terms of performance, there are two major features, one is the use of dual-channel independent output design, supporting 100W+30W simultaneous fast charging output, which can meet the fast charging needs of notebooks, mobile phones and other devices at the same time, and the second is to add a small current charging mode, which can charge small power electronic products other than mobile phones and laptop products, so as to achieve both large and small power.
The materials are also quite in place and solid, and the internal use of four 21700 battery cells composed of four strings of battery packs, compared with the traditional 8 18650 cells, the volume is greatly reduced, and the portability of the product is improvedThe PCB scheme of the entire mobile power supply is provided by Moyi Technology, equipped with a number of solid-state capacitors, two independent voltage conversion circuits are controlled by Nanxin SC8812A and SC8102 chips, and two Nanxin SC2001 chips are selected for protocol control, lithium battery protection and battery balancing chips are from BYD Semiconductor, with high integration and reliable performance.
Related reading: 1. Dismantling report: MoveSpeed 130W fast charging power bank.
Moving speed 80000mAh 130W "light foam" outdoor power bank.
This light foam series light outdoor power bank has a built-in 80,000mAh ultra-large capacity battery and a 3A2C interface, of which the power bank supports 65W charging power and a maximum output power of 130W. A single USB-C port supports 100W output power, and two USB-C ports support 65+65W power distribution when output at the same time, which can charge two laptops at the same time. In addition, a 65W GaN charger and data cable are included inside the package, so you can use it right out of the box, so you don't need to buy additional accessories.
Through the dismantling of the charging head network, it was learned that the mobile power bank has built-in 4 strings of batteries, and the battery and PCBA module are fixed with independent cavities, which has better protection for the battery. The mobile power supply adopts Silan micro dual-channel protocol chip, which supports two-way synchronous buck-boost and mobile power control, with high integration and simple circuit. One of the buck-boost voltages corresponds to the USB-C1 interface, and the other buck-boost voltage corresponds to the USB-C2, USB-A1, and USB-A2 interfaces.
The power bank is also equipped with RGB LED ambient lighting, which is controlled by the microphone and lighting by the CSU32P10 of Chipsea Technology. The battery is fixed with a heat-shrinkable plastic wrap and pasted with double-sided tape to secure the inside of the plastic frame. The impact force is dispersed through the frame structure, and the force is evenly applied to protect the internal battery pack.
Related reading: 1. Dismantling report: 80000mAh 130W "light foam" outdoor mobile power supply.
opso x dockcase
OPSO x Dockcase 100W Fast Charge Power Bank.
The OPSO X Dockcase 100W Fast Charge Power Bank supports 100W bidirectional fast charging, 60W PD output, and 18W QC fast charging, which is fast whether you are charging a power bank or charging multiple devices. In addition, it comes with a digital display screen that can easily understand the power of the power bank, 26800mah 96The 48wh capacity can be carried on the plane while ensuring a large capacity of battery life, which is very practical.
Through the dismantling of the charging head network, it was found that the OPSO X Dockcase 100W mobile power bank is composed of a protection circuit and three independent step-up and step-down four-port output circuits. Among them, Huatai HTL6014 is combined with Tide MOS to form a lithium battery protection circuit;The USB-C two-way circuit adopts Nanxin SC8812A and SC8701 respectively with Tide MOS for buck-boost voltage, and the output is controlled by the USB PD fast charging chip of Unimicro TechnologyAfter the third channel uses Nanxin SC8102 for step-down, the USB-A1 interface uses Tianyu protocol IC to control the output, and the USB-A2 port has a fixed output of 5V voltage.
The mobile power supply is equipped with multiple filter capacitors for secondary filtering, and the output is pureInductors, capacitors, and control chips are glued to help fix and conduct heatThe positive and negative nickel chips of the battery cell are spot welded firmly, and the barley insulating paper is also used to tightly paste the insulation, and the thermistor is equipped with temperature monitoring, so the overall workmanship of the product is solid.
Related reading: 1. Teardown report: OPSO X Dockcase 100W PD fast charging power bank.
This 20000mAh power bank has 2C2A interface, two of which support 65W fast charging input and 100W fast charging output. And the 188 digital tube power display is used to accurately display the battery percentage, and the remaining power of the mobile power supply is more intuitive. There are also touch buttons on the side for a better user experience.
Through the dismantling of the charging head network, it was learned that this mobile power bank has built-in 4 strings of BAK 21700 batteries, with a single battery capacity of 5000mAh and four series connections totaling 20000mAh. The mobile power supply has two independent synchronous buck-boost circuits and a step-down circuit, of which the two synchronous buck-boost circuits use Yingjixin IP5389 and IP2368 synchronous buck-boost converters respectively, corresponding to two USB-C interfaces.
The step-down circuit adopts Yingjixin IP6566 step-down converter, corresponding to two USB-A interfaces. The battery protection chip comes from Saiwei Microelectronics, model CW1244. And equipped with a thermistor for battery temperature detection. The corresponding PCBA module position inside the shell is pasted with graphite thermal conductive paste for heat dissipation, and the battery is pasted with double-sided tape and glued and fixed, and the internal workmanship and materials are good.
Related reading: 1. Dismantling report: Romax 20000mAh 100W fast charging power bank sense6 max
As a young brand, Shanji has been focusing on the fast charging charger market before, and with the help of the gallium nitride fast charging market wave, it has launched a number of products with geek appearance and performance, which have been recognized by users. This 100W super power bank is the debut work of Shanji to enter the power bank market, and it is also a product that is amazing enough, and at the same time focuses on geek style, with high power, large capacity, full protocol and other attributes, in the same traditional power bank market, it is eye-catching.
Through the dismantling of the charging head network, it is learned that the Shanji Super Power Bank is based on 4 strings and 2 parallel battery packs, which are composed of two independent fast charging architectures. One of them uses Nanxin SC8812 as the main control chip, and cooperates with the PD fast charging protocol chip of Xinhai Technology to realize the dual fast charging function of the USB-C1 interfaceNanxin SC8812 is also responsible for the input and output control of the DC interface. In addition, the Zhirong SW3517S main control is used to achieve step-down control, and the built-in protocol can complete the step-down fast charging output of the 1A1C interface with one chip.
At the same time, thanks to the fact that this mobile power bank adopts two independent fast charging architectures, it can support the function of charging and discharging at the same time, improving the user's experience.
Related reading: 1. Dismantling report: Sharge flash 100w super power bank.
Siyou's 100W fast-charging power bank USB-A interface supports QC20/3.0. AFC, FCP fast charging protocol, C port also supports SCP protocol and USB PD30 fast charging standard, with a complete range of voltage levels, wireless charging can charge the mobile phone at any time, eliminating the trouble of plugging in the wire, the digital display screen can easily understand the state of the mobile power supply, the maximum 100W PD fast charging can meet the charging needs of most mobile phones and thin and light laptops, in addition to the 27000mAh 99wh capacity can also be carried on the plane at the same time, very practical.
Through the dismantling of the charging head network, it was found that the SIYOU 100W mobile power bank is designed as a four-way circuit to work. Among them, USB-C is one way, which adopts Nanxin SC8812A high-efficiency two-way buck-boost solution and Xinhai Technology CS32G020K8U6 32-bit MCU to achieve two-way fast charging at C portThe other two USB-A ports use Yingjixin IP6525T to achieve step-down outputThe wireless charging circuit also uses Yingjixin IP6525T to step down the voltage, and uses Zhuoxin Micro ZXW8025+ZX8803 wireless charging scheme to control the output.
The mobile power supply is equipped with multiple filter capacitors for secondary filtering, and the output is pureThe battery cell is fixed with blue battery plastic cover and foam glue, the internal stability of the core is firmly welded, the cell nickel sheet is spot welded, the wireless charging coil is wound tightly, and the overall workmanship of the product is solid.
Related reading: 1. Dismantling report: SIYOU 27000mAh 2A1C 100W fast charging power bank.
This power bank has a built-in battery pack with a capacity of 31200mAh, the capacity is real, whether it is a mobile phone or a notebook, it can achieve a good battery life demand, the capacity of 112Wh can be taken on the plane, business travelers can easily carry it, in addition, in addition to supporting PD100W two-way fast charging, it also supports SmartDC maximum 150W input, 360W high-power output, which makes it a lot more application scenarios.
Through dismantling, it can be seen that the overall structural layout of Powerben Energy Fort is simple and ingenious, not dragging mud and water, and the circuit part is highly integrated. The protection board with temperature detection and equalization function, can provide better protection for the battery, two custom IC, a protocol IC, a buck-boost IC blessing, in addition to the conventional fast charging IC can be played to the extreme, but also make it have a private multi-mode protocol system, can play the same battery performance to the extreme, it is reported that its internal patented algorithm, can achieve efficient control and management of input and output voltage, power and other parameters, so that in the case of high-power charging and discharging, the temperature rise data can also be ideal.
Related reading: 1. Dismantling report: Senshimai Powerben Energy Fort 360W mobile power supply.
This mobile power bank launched by Greenlink has 2C1A three interfaces, which can be used for fast charging of one notebook + two mobile phones at the same time, and the power of two USB-C ports can reach 100+45W when output at the same time, which can meet the temporary emergency charging of two laptops, and the USB-A interface supports fast charging, and it also has good compatibility with traditional devices. The power bank has a 65W self-charging capacity, and the charging speed is also very fast, which greatly improves the practicality.
Through the dismantling of the charging head network, it was learned that the mobile power supply has a built-in Chuangxin micro-CM1351 battery protection chip and an external equalization circuit for the protection and balancing function of the battery. The two buck-boost circuits are controlled by Baoli Micro PL5500 two-way synchronous buck-boost controller. The built-in protocol chip adopts Xinhai CS32G020 and CSU3AF10, which correspond to two buck-boost voltages respectively to realize the output control of three interfaces.
The power supply adopts a combination of two PCBs, and the inside is filled with a silicone thermal pad to strengthen the heat dissipation capacity, and the PCBA module uses a thermal pad to connect to the graphite thermal pad of the shell to dissipate heat to reduce the temperature rise. The battery is insulated with barley paper and tape, and the safety and reliability of the mobile power supply are the most reassuring when charging and discharging at high power.
Related reading: 1. Dismantling report: Greenlink 25000mAh 145W laptop power bank.
The Supertank Pro mobile power bank is designed with a suitcase shape, which is unique and recognizable. While the product is designed with four USB-C ports, it is also equipped with a conversion head, which is bold and intimate at the same time. Up to 100W two-way fast charging, as small as 18W PD fast charging, to meet the fast charging needs of mobile phones, laptops and other devices, and the interface supports power blind plugging, even if all are USB-C ports, it will not be confused. In addition, it is equipped with an LED display that can show the remaining power and the charging power of each interface, which is very convenient to use. The combination of innovation and thoughtful detail has made it a hit.
Through the dismantling of the charging head network, it was found that this mobile power supply is composed of a protection circuit and three independent step-up and step-down four-port output circuits. Among them, Texas Instruments BQ40Z50 and Tide MOS form a battery pack fuel metering and protection circuitThe C1 and C2 circuits are both powered by Nanxin SC8815 with Bandai MOS for buck-boost voltage, and the output is controlled by the CS32G020K8U6 USB PD fast charging chip of Xinhai Technology. C3 and C4 are one way, Nanxin SC8102 is used for step-down, and Xinhai Technology CS32G020K8U6 controls the output.
Two Chipsea CS32G020K8U6 are responsible for the PD protocol control of C1 C2 and C3 C4 interfaces respectively, and one of the chips is also responsible for the screen display driver. Each interface is also equipped with a Tiandeyu FP6601Q protocol chip to support fast charging, and the interface has TVS for electrostatic protection. In addition, the internal battery pack of the mobile power bank is fully insulated, and is equipped with a thermistor for temperature monitoringThere is a thermal pad between the PCB boards, which is used for soaking heat to reduce the temperature rise, inductor gluing and reinforcement, and a filter electrolytic capacitor for input and output filtering. All interface data pins are protected by TVS for electrostatic electricity. The overall workmanship of the product is solid.
Related reading: 1. Dismantling report: Zhengtuo 100W two-way fast charging mobile power bank SuperTank Pro
This 100W fast-charging power bank uses a metal body shell, sandblasted surface, and a sideways curved transition, which is not only strong and protective, but also has a good feel of use. All three interfaces support QC20/3.0. AFC, FCP fast charging protocol, C port also has 5V3A, 9V3A, 12V3A, 15V3A, 20V5A five complete voltage ranges. It is compatible with mainstream fast charging protocols and has complete gears, which can meet the fast charging needs of most mobile phones, tablets, and laptops. 26800mah/99.The 16Wh capacity design allows it to be carried on board as well.
The charging head network is found through dismantling, and the mobile power supply is composed of a protection circuit and a two-way step-down circuit, and two independent step-down outputs, and the structure is clear and clear. The battery cells are connected by 4 strings and 2 in parallel, which are protected by Zhongying SH367103 and Nexen MOSThe USB-C circuit is controlled by the Cypress CYPD3171 protocol chip, and the input or output is realized through the Nanxin SC8815 with Tide MOS for buck-boost voltageThe two USB-A ports are controlled by Tianyu FP6601Q, and Silergy Giant SY8104 is step-down for output, and the performance is completely consistent.
Related reading: 1. Dismantling report: 26800mAh 2A1C 100W fast charging power bank.
Through the dismantling summary, it can be seen that according to the different years of the launch of the mobile power supply, the early high-power mobile power supply uses 18650 batteries, and the 21700 batteries launched in recent years are used, and the common ones are 4,5,6 batteries in series. The 18650 battery uses 8 cells and is connected in 4 strings and 2.
In recent years, with the introduction of the protocol chip and the synchronous buck-boost controller all-in-one controller, the mobile power supply has also begun to choose this all-in-one solution to simplify the design. And there is also a screen for parameter display to improve the playability of the power bank.