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Twin Pack - 5V 1A micro USB 3.7V Lithium Polymer Battery Charger
$10.95
SKU 48464411
Safely and easily charge single cell LiPo batteries with this compact 5V 1A micro USB 3.7V Lithium Polymer Battery Charger.
Simply solder your battery wires to the board, and connect a micro USB cable for charging when required. Board has charging status indicator LEDs - red for charging, blue for fully-charged.
Be sure to use correct polarity with both input and output side of board.
Sold in packs of two! Free delivery worldwide.
Specifications:
- Input voltage range: 4.5~5.5V DC
- Charge current: 1A
- Precision: 1.5%
- Battery considered fully-charged at 4.2V DC
- Board size: 17 x 14mm
You can modify charging current by changing SMD resistor "Rprog", see following table:
| RPROG (k) | IBAT (mA) |
| 30 | 50 |
| 20 | 70 |
| 10 | 130 |
| 5 | 250 |
| 4 | 300 |
| 3 | 400 |
| 2 | 580 |
| 1.66 | 690 |
| 1.5 | 780 |
| 1.33 | 900 |
| 1.2 | 1000 |