Pro tip: According to NOCO technical support, you can use a battery maintainer on an EV 12-volt battery. Be sure to choose one compatible with EVs. How To Know if the 12-Volt Battery on an EV Is ...

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Today’s automotive battery chargers are powerful enough and designed ... gas or diesel engines and 12-volt electrical systems. It is said this jumper can get big rig engines cranked over.

If they sit long enough, the battery will degrade, go dead flat, and will need replacing. A battery maintainer is your ... the instructions, and 12-foot leads with two connection types.