BAT Detector v1.0
LiPoly battery state-of-charge detector with three JST sockets (1×JST-1.0, 2×JST-2.0) and solder pads for other connectors. Four LEDs display charge level in 25% increments; a fifth LED signals reverse polarity. Input 3–4.2V.
Start wiring
I2C · USB · 5 V · Module
Check connector polarity before wiring power.
Charging
46 other optionsSingle-cell LiPo chargers (TP4056, MicroUSB/Type-C modules), charger/booster combos (PowerBoost 500/1000, Lipo Rider Plus 5V/2.4A), I2C fuel gauges (MAX17048, LC709203F) and Qi wireless charging coils.
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