20A Smart Battery Charger 6V-24V, LiFePO4, Lead-Acid

20A smart battery charger delivers fast, controlled charging for 6V/12V/24V lead-acid and 12V/24V LiFePO4 batteries, helping keep vehicles ready with less downtime. Use it as a charger, maintainer, and desulfator with a clear LCD readout for voltage, current, and battery status. Temperature-adaptive output and built-in protection systems support safer charging for cars, boats, motorcycles, RVs, and lawn equipment.

• Supports 6V/12V/24V lead-acid (Wet/Gel/MF/CA/EFB/AGM/Calcium) and 12V/24V LiFePO4 batteries for broad compatibility.


• Delivers up to 20A adjustable output to reduce charge time on larger batteries and equipment.


• Switches between 4 modes: 7-stage Charge, Maintain, Desulfation, and Force activation for batteries below 1V.


• Shows real-time data on a 3.1 in LCD: mode, voltage, current, level, and battery status for quick checks.


• Protects with overcurrent, short-circuit, reverse polarity, overheat, low-temp, and overvoltage safeguards plus thermal compensation.

Built for workshop, garage, or onboard use, this all-in-one charger/maintainer helps you handle seasonal storage, frequent-start vehicles, and mixed battery types without swapping devices. The portable handle and efficient heat dissipation design support reliable everyday operation, while straightforward buttons keep setup simple even for first-time users. Ideal for cars, motorcycles, boats, ATVs, small golf carts, ride-on vehicles, and compact lawn mowers. Grab yours today and keep your batteries maintained and ready.

• Max charging current: 20A


• Supported voltages: 6V / 12V / 24V


• Battery types: Lead-acid (Wet/Gel/MF/CA/EFB/AGM/Calcium), LiFePO4 (12V/24V)


• Display: 3.1 in LCD


• Operating temperature: -10°C to 40°C (14°F to 104°F)


• Housing material: ABS + PC


• Included connection: alligator clips