Schumacher DSR125 Battery Charger is a 6/12V 4 bank fully automatic charger that automatically selects from 2 to 10 amps output per bank to minimize charge times. It can charge up to four 6V and 12V batteries simultaneously and is safe and smart with each bank being completely automatic with a microprocessor to prevent overcharging, reverse polarity, and short circuits. It can charge standard, AGM, gel, deep-cycle, and LiFePO4 batteries, and features four detachable 6-foot cables with 75-amp, color-coded clamps, fan-cooled for dependability and peak performance, and thermal runaway protection. Reviews note that it performs well, charges, tends, and switches between battery types automatically, and has quality clamps and wires.

• Compatible Batteries - The DSR125 car battery maintainer can charge four 6V and 12V standard, AGM, gel, or deep-cycle batteries at once. Safe for marine batteries, it can double as a charger for boat battery use.
• Battery Tender, Charger + Maintainer - Each charging bank can charge either one 6 or 12-volt battery, or for double the charging speed, two banks can connect to the same battery.
• Protect Battery Health - This dual 6 and 12-volt battery charger can automatically select the proper amperage per bank, up to 10 amps, to avoid overloading batteries. It also boasts short-circuit and overcharge protection.
• Safe + Easy to Use - We built this automotive battery charger with four clear digital displays (one for each bank) + a heady-duty steel case and handle for easy transport.