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How does a battery maintainer work?

Updated: 10/21/2022
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10y ago

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Unlike older vehicles, today's vehicles have computers and other electrical components that require the battery to remain connected to the vehicle circuitry full time thus requiring a small but constant use of battery power. A battery maintainer will keep a battery charged and can be connected full time without overcharging. These are pocket size version of the automatic battery charger, but only have low current capabilities of 1 amp or less.

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Q: How does a battery maintainer work?
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