Charging larger marine batteries. The M25 is the perfect 25A battery charger for all boat owners. It features a variety of functions, including a Recond mode for reconditioning deeply discharged liquid and Ca/Ca batteries, as well as a temperature sensor to optimize the charging process at temperatures deviating from +25 ºC. It also has a lithium mode for lithium batteries. The M25 comes with a long 4-meter cable with M10 ring terminals to facilitate boat installation. 12V lithium batteries (LiFePO4, Li-Fe, Li-iron, LFP) features: fully automatic and easy to use, simple to connect, spark-proof and reverse polarity protected, compact, robust design, IP44 protection rating for outdoor use.