USB-C 2S charger board
USB-C 5 V in · boost CC/CV to 7.3 V (2S LiFePO4) · 1 A · input held under 2 A · four level LEDs while charging · no back-feed · 5 V only
Try it on the benchThe lab drops it on an empty bench and opens its datasheet card.
Typical part: USB-C 2S boost charger board (IP2326-type)
Pins
- IN+
- IN−
- BAT+
- BAT−
- USB-C port (5 V in)
Ratings and limits
| Input | 5 V from any USB charger (USB-C, 5.1 kΩ Rd on CC), up to 2 A |
|---|---|
| Output | CC/CV to 7.3 V, 1 A |
| Never | more than 6.5 V on the input |
| LEDs | 4 blue: level while charging, all steady when full |
How to use it
Charges a 2S pack (two cells in series) from an ordinary phone charger. Set the board for LiFePO4 (7.3 V) or Li-ion (8.4 V): the wrong setting over-charges LiFePO4. Goes to the BMS P+/P−.
Lessons and builds that use it
- 12 V solar lantern and power box in an enclosure: two 32700 LiFePO4 cells, USB-C and solar charging, 12 V and USB outputs (build)
- Rechargeable 12 V bulb on two 32700 LiFePO4 cells: 2S BMS, USB-C 2S charger and a 12 V boost (build)