3pcs 3.7V To 5V 1A 2A Boost Module DIY Power Bank Mainboard Built in 18650 Lithium Battery
$19.89
Shipping:Standard Shipping about 10-25 business days
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Features
1. 4 level LED lights show electricity, non-working state smart automatic shutdown;
2. Built-in lithium battery protection IC, overcurrent, overvoltage, undervoltage protection;
3. Dual USB output;
4. Motherboard size:69 x 32 x 8mm(L x W x H)
Product basic parameters
Input port:Micro USB (Android port)
Input requirements:5V constant voltage power supply can be used for charging input power, the most matching charger is 5V 1A or more
Output port:USB
Output parameters:5V 1A / 5V 2A
Requirements for rechargeable batteries
Available battery(3.7V-4.2V polymer lithium battery)
18650 battery, mobile phone battery, flat battery, MP3 battery, can choose single cell power supply, or multiple cell parallel power supply(does not support the series). (Note:increasing capacity in parallel and increasing voltage in series, can only be used in parallel!)
Can be connected in parallel with 2-6 pcs 18650 batteries!!!
Batteries are not available
Dry cells, batteries, 1.2V rechargeable batteries, nickel hydrogen batteries, 3.2V iron lithium polymers, lithium batteries, etc.
Product installation should pay attention to the following points
1. The battery should be connected in parallel, only the voltage between 3.2-4.2V can work, 18650 flat head and polymer batteries are available;
2. The battery is connected to the motherboard, B+ stands for the positive pole, B- stands for the negative pole, if it’s connected reversely will burn the motherboard;
3. The old batteries and new batteries, the batteries which model and brands are inconsistent, these battery can not be mixed.
Package included
3 x 3.7V to 5V 2A boost module
| Weight | 0.03 kg |
|---|
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