S-82R1A Battery Protection IC ABLIC S-82R1A Battery Protection IC is for lithium-ion / lithium polymer rechargeable batteries, including high-accuracy voltage detection circuits and delay circuits. The IC is suitable for protecting 1-cell lithium-ion / lithium polymer rechargeable battery packs from overcharge, overdischarge, and overcurrent. Overheat protection is possible by connecting an NTC thermistor to the NTC thermistor connection pin (TH pin.) The battery voltage monitoring pin (BS pin) enables accurate voltage monitoring.