Multi Stage 12V Smart charger and maintenance charger with Supply mode. Smart charger capable of charging both lead acid (gel Silver/Calcium AGM & EFB stop/start) and Lithium (LFP / LiFePO4) batteries up to 270Ah. Multistage charging extends the life & performance of modern battery types. Safe to charge without disconnecting battery from the vehicle. Protection for vehicle electronics including polarity reversal short circuit & overvoltage. Optimised maintenance charging means unit can be left safely plugged in indefinitely e.g. maintain car in storage. Supply mode enables unit to be used as a battery support unit whilst performing diagnostic testing and showroom mode maintains battery condition in show vehicles (18A supply). Auto restart function resumes charging at the last used settings in event of a power cut. Can be wall mounted.