【20-AMP QUICK CHARGER】12V 20-Amp and 24V 10-Amp 7-stage quick battery charger, charging speed is much faster than 8-Amp or 5-Amp automatic chargers. Charge or repair all 12-volt and 24volt LiFePO4 lead-acid and lithium-ion automotive, marine and deep-cycle batteries including AGM, GEL, SLA, Flooded in cars, trucks, SUVs, motorcycles, lawn mowers, boats, etc. Perfect household tool and present for daily use! NEW REPLACEMENT AVAILABLE FOR ANY QUALITY ISSUE WITHIN 2 YEARS. | 【 LiFePO4 & LEAD-ACID & LITHIUM BATTERIES COMPATIBLE】Smart control, temp compensation in hot climates and under-charging in cold climates, reverse protection, cooling system, overcurrent, fireproof material, overvoltage, short circuit. 10ft cord length trickle charger with multiple protection ensure the safety charging at anytime anywhere. No worries! | 【UPGRADED TRICKLE CHARGER】Automatically enters trickle charging after fully charged, detects battery sulfation and acid stratification, takes the newest pulse repair function to restore lost battery performance for stronger engine starts and extended battery life. Note: can not activate or charging totally dead batteries. | 【SUMMER HOLIDAY BATTERY HOUSEKEEPER】Smart control, temp compensation in hot or cold climates, reverse protection, cooling system, overcurrent, fireproof material, overcharge, short circuit. Battery trickle charger with multiple protections ensures the safety of charging perfectly for maintaining batteries for months over the winter or holidays. Avoid battery failure in advance. No worries! | 【PLUG AND PLAY】 no complicated steps, just plug and charge, stay at home and charge your batteries on your own. All-in-one battery solution as battery charger, battery maintainer, trickle charger, plus battery desulfator. The must-have tool for your garage. | 【VISUALIZED CHARGING】 Large LCD display the charging and battery status; charge voltage and current, inside temperature(℉/℃), charge percentage, summer mode, winter mode, etc. More convenient to use.