Miller ML202 Smart Charger/USB Power Pack for 18650 Rechargeable Li-Ion Batteries

The Miller ML202 is a versatile dual-slot smart charger and USB power bank designed for 18650 Li-ion batteries. It features a micro USB input for charging the batteries and a standard USB output for using the charged batteries as a power bank to charge other devices. The device includes LED indicators: red for charging, green when the battery is full, and blue when the USB output is active.

This charger is compatible with unprotected 18650 cells, accommodating both flat-top and some button-top batteries up to 65mm in length. It can deliver a charging current of 1.3A per slot and a termination current of 0.1A. When functioning as a power bank, it can provide up to 1A output with one battery and up to 1.25A with two batteries. Some versions of the ML202 feature an upgraded SY6952B chip for improved performance.