BC12M248 AGM GEL WET VMAX TANKS 12V 2A 4A 8A 7 Stage Smart Automatic boat pontoon Battery Charger and Maintainer 6Ah-120Ah 12 Volt Battery Charger LED indicator lights show charging status and battery level 7-Stage Microprocessor Controlled Battery Smart Charger / Maintainer Easy to use, plug it in and forget it! Battery Charger / Maintainer / Tender