✔ Storage mode for optimal battery maintenance. Slot Capacity: 4 Slots. 1 Slot: 1500mA. ✔ Capacity testing and internal resistance testing functions. Standard Mode. 10440, 14500, 14650, 16340 (RCR123), 16500, 16650, 17350, 17500, 17650, 17670, 17700, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22500, 22650, 25500, 26500, 26650, 26700.
