E-FAST TK2500 20A Battery Charger 12V 24V LiFePO4 AGM Gel SLA Deep Cycle CarThis 20-amp smart battery charger handles 12V and 24V batteries for cars, trucks, RVs, boats, and marine vehicles. It delivers 20A for 12V batteries and 10A for 24V systems, charging a 100Ah battery in about 5-6 hours—roughly twice as fast as standard 10A chargers. The charger is compatible with LiFePO4 lithium batteries as well as all lead-acid types including AGM, GEL, SLA, wet, and deep cycle batteries. Its intelligent 7-stage charging system automatically diagnoses, charges, and maintains batteries to extend their lifespan. The built-in auto-memory feature remembers your last settings and resumes the same mode when power is restored or the charger is plugged in again. A dedicated 16-hour repair mode uses pulse technology to help break down sulfation crystals on battery plates and restore performance.MPNTK1200Itemweight2.54 poundsProductdimensions3.7 x 4.9 x 7.5 inches