General description Liitokala Lii-500 Smart Charger is designed for charging various rechargeable batteries including Ni-MH, Ni-Cd, and Li-Ion types. It features four slots, allowing you to charge different sizes of batteries (18650, 26650, AA, AAA) simultaneously. Technical specifications Charging current adjustment: 300mA, 500mA, 700mA, 1000mA USB output: 5V/1000mA (for lithium batteries only) Usage Charging modes: Charge, quick test, and test again can work simultaneously Independent charging for each slot Rapid capacity detection and intelligent battery identification Other information LCD display shows voltage (V), current (mA), time (h), capacity (mAh), and internal resistance (mR) Protection features: overcharge protection, deep discharge protection, short circuit protection, temperature protection, 0V voltage activation function, and reverse polarity protection