OptimMate DC to DC TM-500, 6-step 12V/12.8V 2A sealed DC to DC battery saving charger & maintainer, Optimate, Mfr#: TM-500V3

OptiMate DC-DC 12V 2A, the ideal off-grid charger and maintainer for your 12V lead-acid or 12.8V LifePO4 / LFP Lithium battery, that draws power from another 12V battery – No AC power required! DcToDc, 12V Battery/Dc Supply To 12V (Lead Acid) Or 12.8-13.2V (Lfp-Lithium) Battery Charger