【POWERFUL LEAD-ACID LiFePO4 BATTERY CHARGER】12V 15-Amp and 24V 8-Amp 9-stage quick battery charger, charging speed is much faster than 10-Amp or 8-Amp automotive chargers. Charge or pulse repair all 12-volt and 24volt LiFePO4 or lead-acid automotive, marine and deep-cycle batteries including AGM, GEL, SLA, Flooded in cars, trucks, SUVs, motorcycles, lawnmowers, boats, etc. NEW REPLACEMENT AVAILABLE FOR ANY QUALITY ISSUE. 【UPGRADED 9-STAGE BATTERY TRICKLE CHARGER】The first battery trickle charger that adopts 9-stage charging process, much safer and more efficient also can extend battery's cycle life. Specially designed trickle/float charge mode(TKL) will automatically enters trickle/float charging mode after fully charged, keep maintaining your batteries during this winter and holidays, leave batteries for months and still fully charged like brand new when you come back. 【LARGE COLOR SCREEN VISUALIZED CHARGING】 Extra large color LED screen not only clear to see under the sunlight but also displays the charging and battery status; charge voltage and current, inside temperature(℉/°C), charge percentage, summer mode, winter mode, etc. The lengthened 6.7ft charging cord(from the clips to ac plug) is more convenient to use. 【OVERALL CHARGING PROTECTIONS】Smart control, temp compensation in hot climates and under-charging in cold climates, reverse protection, cooling system, overcurrent, fireproof material, overvoltage, short circuit. Battery trickle charger with multiple protection ensure the safety charging at anytime anywhere. No worries! 【HIGH-EFFICIENCY PULSE REPAIR EXTEND BATTERY CYCLE LIFE】Automatically detects battery sulfation and acid stratification, takes the newest pulse repair function to restore lost battery performance for stronger engine starts and extended battery cycle time. Note: can not activate or charge totally dead(0V) batteries. NEXPEAK NC215 Battery Charger