trickle charge

American  

noun

Electricity.

1. a continuous, slow charge supplied to a storage battery to keep it in a fully charged state.

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Etymology

Origin of trickle charge

First recorded in 1955–60

Example Sentences

But most homeowners can get away with a “trickle charge” using a Level 1 charger, Kraft says, particularly if they’re just driving locally.

From Seattle Times

When driving, we kept the battery between the front seats for easy access and to trickle charge it off the car’s cigarette lighter output.

From The Verge

If you have doorbell wires or want to use a power extender kit, you can attach them to the Ring 2020 to trickle charge the battery.

From The Verge

They can also be wired to your doorbell wiring to trickle charge the battery.

From The Verge

You can wire the Google Nest Doorbell to your doorbell wiring, but it will only trickle charge the battery, not power the doorbell camera directly.

From The Verge