Feature: 1. With 7‑phase charging function, 7‑phase charging, desulfurization, trick current charging, constant current charging, constant voltage charging, battery power detection. 2. Only the voltage and temperature are displayed in the detection of the phase, and the power grid effect is consistent with the recovery mode), also can charge compensation and floating charging. (There is no lithium battery in this phase). 3. With overcharge protection function, it can prevent the battery life from being reduced due to overcharge and improve reliability. Therefore, you can connect the charger to the battery indefinitely. 4. If it detects that the temperature is too high, it will automatically start the overheating protection program. When the temperature returns to normal, the initial charging state will be restored. 5. 7‑level charger is suitable for most battery types and with Microprocessor Control (CPU). They can also help recycle used and sulfated batteries. Suitable for Calcium, Gel and AGM, Wet, EFB 12V 24V Ternary Lithium Iron 12V 24V Lithium Iron Battery, etc. Specification: Item Type: Battery Charger Material: ABSSize: Approx. 160 x 100 x 50mm/6.3 x 4.0 x 2.0in Input Voltage: 100 - 240V AC, 50 - 60Hz Nominal Power: 12V 6A /24V 3A Minimum Voltage: 8.0V Battery Range: 6 - 120Ah Thermal Protection: 65℃ +/- ℃ Efficiency: Application, 85% Meet the Standards: CB, CE, IEC60335, EN61000, EN55014 Length of Output Line: Approx. 115cm/45.3in Length of Intput Line: Approx. 80cm/31.5in Function Technology Mode Switch: Yes Polarity Protection: Yes Output Short Circuit Protection: Yes Non-Battery Link Protection: Yes Overvoltage Protection: Yes Overheating Protection: Yes Cooling Fan: Yes. Package List: 1 x Battery Charger1 x Manual Note: 1. Please use strictly according to the instructions. 2. Do not charge into the atmosphere. 3. Avoid high temperature and humidity when charging. 4. When charging, the battery surface should not be covered with objects. 5. When the sulfide material at both ends of the positive and negative elec‑trodes of the battery is too high, the sulfide material should be removed first, so that the battery can be better charged.