20 Amp Car Battery Charger,12V and 24V LiFePO4 Battery Charger (AGM/SLA/Gel/Wet/VRLA),Trickle Charger for Optimal Performance of Automotive,RV,Lawn Mower,Golf Cart,and Marine Batteries

20-amp Smart Battery Charger P20 amp smart battery charger Problem 1: Can't reach the maximum charging current? To protect the battery, the system automatically identifies the battery voltage and selects the most appropriate current to charge the battery. When the battery voltage is low (for example, the 12V battery voltage is less than 11V), the system automatically charges the battery at the maximum current. (3 gears can adjust charging current, large current, fast charging) 2: The LifePO4 battery is not fully charged? When the battery is fully charged, it has a callback function, reducing the charge by about 1V-2V, which is normal. Added a small current after full charge and uninterrupted charging. 3: Fan noise? It is normal that the fan has wind. P20 parameters AC input:100v-240v~ 50/60 hz. Output voltage:12V / 24V. (normal - Max:13.2V-14.6V / 26.5V-29.2V). Lithium /LiFePO4/ lead acid (AGM, GEL, EFB, MF, Flooded, VRLA, SLA, and wet battery..). Max: Lithium:12.4V-14.6V / 24.8V-29.2V. Lead acid:14.7V / 29.4V. LifePO4:14.6V / 29.2V. Output current:12V20A & 24V10A Support ah: 2AH-300AH... can have more capacity, the larger the capacity needs longer charging time. Minimum starting voltage > 2.0 V Power and load: MAX; 280W Size:158 x90x50mm(6.22 * 3.54 * 1.97 inches) .Net weight: 470g Note:1 Only charge the lithium battery with a battery protection board(BMS). 2 Charge the battery below 10AH with the minimum current