Best 18650 battery charger of 2022 (10 Top Picks) | ~by ... The best lithium battery charger. AA, AAA, NiMH, NiCd, LiFePO4 (3.2V), Li-ion 4.2V(3.6V) and Li-ion 4.35V (3.8V) Can handle long batteries; Maximum control over every detail; 0.2A-3A charge current; Can handle literally every cylindrical battery on the planet; Large display; Bluetooth compatible; PC connector; Read the full review here