Must the charger be powered down before starting the engine?
Have a generator that needs a trickle charger for the battery. It starts and runs on a program once a week. Need a trickle charger for a 12V car battery that does not need to be disconnected when the generator starts.
Grainger part number 3LE87 is designed to maintain automotive type lead acid batteries. This charger would need to have the A/C supply power off while the engine is running. Also, please note, If the battery is a deep cycle, or Gel/AGM type, please consider calling Grainger to further discuss other charger options. The phone number is 1-800-323-0620.
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