1: Finished product = shell + boosted version + 4 Sanyo476790Polymer battery(14000 mAh)+ LG original 1.2m Mirco USB data cable + installation fee = 98 yuan
2: Shell + boost version = 22 yuan
3: Shell = 12 yuan
4: Boost version(Circuit board)= 10 yuan
5: 3550 mAh Sanyo 476790 polymer battery (this shell can be installed4Piece)=16.8 yuan(Battery can provide spot welding service)
6: LG original 1.2m Mirco USB data cable = 6 yuan
7: Samsung original 1A charger = 8 yuan
installation method:This mobile power bank can place five 18650 batteries or use 4 parallel Sanyo 486790 polymers. You only need to connect the batteries to the booster version and install the screws. The manufacturing is simple. The shop provides a full set of spare parts. The finished product can be sold directly on the counter. Welcome to call to discuss, please do not counter-offer in retail, and the bargaining will not be returned. Contact number: 13870724232
note:After installing the board,The available space is length: 90MM width: 70MM height: 19.5MM, Please confirm that the battery is suitable before buying
note:If you need more than one product, please use the purchased car to buy it, and it will be shipped after inspection. Please don''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t take photos if you have poor hands! !
12 yuan shell display: (YesBlue, purple, pink,black4 colors are available, if not specified, it will be shipped randomly)
10 yuan boost version (soft version)Display:
Note: The board is a precision original, which has been tested before leaving the factory. If there is a quality problem, it can be replaced for free. The return shipping fee is borne by the buyer. Please purchase the return shipping fee. Please think twice before buying. ! !
size:(Length 71MM*Width 22.5MM)
Conversion rate ≥85%, with overcharge, overdischarge, overcurrent, short circuit protection
Press the switch, the indicator light is on, and charging starts; press the switch again, the indicator light is off, and charging stops.
1. Charging part:
1.1 Input voltage 5V/1000mA
1.2 Constant current battery voltage≥3.1V: 1000mA±100mA
1.3 Constant voltage 4.20V±1%
1.4 Full condition voltage≥4.15V and current≤100mA
2. LED light display part:
2.1 Internal charging power display
(A total of 4 battery lights)
Voltage ≥3.10VLEED: D1-D2-D3-D4 flash
Voltage ≥ 3.60V LED: D1 is on. D2-D3-D4 flashes
Voltage≥3.8V LED: D1-D2 is on. D3-D4 is flashing
Voltage ≥3.95VLED; D1-D2-D3 is on. D4 flashes
Voltage≥4.15VLED;D1-D2-D3-D4 on
2.2 Uncharged, click the button to view the battery voltage <3.0V LED: D1 off(Output off)
Voltage ≥3.1VLED: D1 is on
Voltage≥3.70V LED:D1-D2 on
Voltage≥3.77V LED:D1-D2-D3 on
Voltage ≥3.92VLED: D1-D2-D3-D4 bright
2.3 External discharge power display voltage <3.0V LED: D1 off(Output off)
Voltage ≥3.1VLED: D1 flashes
Voltage≥3.70V LED: D1 is on. D2 is flashing
Voltage ≥3.77V LED: D1-D2 is on. D3 flashes
Voltage ≥3.92VLED: D1-D2-D3 is on. D4 flashes
3. Discharge part:
3.1 Output voltage 5.0V-5.3V
3.2 Load output current USB2.0 reel port standard female output 1.0A and 2.1A.
3.3 Discharge efficiency average efficiency≥80%
3.4 Short-circuit protection When the output is short-circuited, the output will be automatically turned off and shut down. After the short-circuit is removed, the charging activation can be turned on.
3.6 5V output interface USB2.0 standard female output.
4. White light part:
4.1 None
5. Button part:
5.1 In the sleep mode, press the button to display the current power level, turn off the LED after 15s, boost the voltage when there is a load, and automatically shut down and enter the sleep mode after 30s without load.
6. Battery protection board:
6.1. Overcharge protection voltage 5.0V-5.3V
6.2. Over-discharge protection voltage 2.5V±50mV
7. Charging and releasing part:
7.1 Does not support charging while charging.
8. Other:
8.1 Whole machine static power consumption ≤100uA
8.2 Shutdown voltage ≤3.0V
8.3 Boot voltage>3.3V((Charge the second light to flash before discharging)
8.4 Input interface MICRO female socket
9. Aging test
1. Test steps:
①, the assembled semi-finished product, use 20W/5R resistance load to discharge the power (1A load).
②. Charge the discharged semi-finished product with a 5V/1A charger, and observe whether the display status is consistent with the instruction. OK.
③. Discharge the charged semi-finished product with a 20W/5R resistive load, and observe whether the display status is consistent with the manual. OK, the test is completed.
④. Charge the discharged semi-finished product with a 5V/1A charger, stop charging at 70%, and then assemble the finished product.
⑤ After assembling the finished product, use a 20W/5R resistive load and a 5V/1A charger to do charge and discharge tests to prevent damage during assembly.
16.8 yuan 3500 mAh Sanyo 486790 polymer battery show(This shell can hold 3):
Note: The maximum charge cut-off voltage of the battery is 4.35V, the discharge cut-off voltage is 2.75V, the capacity of charging to 4.2V is about 3500 mA, and the capacity of charging to 4.35V is 4050mah.
The current mobile power supply on the market is generally 4.2V charging cut-off. If the charging cut-off voltage is not very accurate, using ordinary polymer lithium batteries will cause the battery to bulge, and the battery will soon be scrapped. The use of this battery only sacrifices a few hundred milliamp-hours of capacity to prevent battery bulging caused by excessively high charging cut-off voltage, and its durability is greatly increased.
Samsung original charger, first-class workmanship, piano paint exterior, exquisite internal materials, small size, easy to carry! ! The owner was completely attracted by this small product, so he decided to put it on the shelf! ! The owner’s photography skills are limited, and the things are definitely more beautiful than what I took, with a protective film on the outside, brand new and original! ! Please rest assured to buy! ! I checked, other Taobao stores sell it for about 15 yuan, and I only sell it at half the price of 7.5 yuan, thank you for your continued support! !
The following is an internal disassembly diagram. The workmanship of foreign brands is really not the same as domestic ones! ! This is a fact I have to admit, I hope Chinese products can be processed according to foreign quality requirements! !
6.8 yuan 22AWG thick core high current charging mirco USB data cable display: