Wide compatibility: The Smart USB Charger M02 supports a wide range of batteries, including 3.6V/3.7V Li-ion batteries (26650, 18650, 10440, 14500, and more) as well as 1.2V rechargeable batteries like Ni-MH and Ni-CD AA, AAA, A, C, SC, and F6 sizes. This charger is suitable for charging multiple battery types simultaneously.