I've been replacing the batteries in my car emergency flashlights every six months. 4 Energizer D cells x 3 flashlights. Energizers website recommends every few months? What say we all?

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I’ve switched to using Energizer Ultimate Lithium batteries in such situations.



[www.energizer.com]

Never.
Just charge them every 6 mos or so.

The little blue free flashlights from Harbor Freight can go for years on a set of batteries. I have two Ryobi 18V lanterns for the house and about 15 batteries.

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Grateful11

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btfc
I’ve switched to using Energizer Ultimate Lithium batteries in such situations.



[www.energizer.com]

Same here.
They don't leak, and they stay fresh longer.
You can get adapters to use AA batteries in place of D cells, but of course the cells won't last as long when in use in that setting.



Edited 1 time(s). Last edit at 10/06/2022 08:01PM by S. Pupp.

I have two flashlights and one lantern that use D cells, so it's Energizer Premium Alkaline D cells.

They don't have the life span of the Lithium version, but they have a much higher capacity, and that's why those lights were chosen.

Only two other flashlights have disposable batteries, a 2xAA and a 2xC light.

Everyready alkalines have lasted years without leaking, and still provide decent light.

Obviously I should inspect/change them probably annually, but I wouldn't bother with shorter intervals, as there's been no signs of leakage.

These are standby lights that get little use.

If they're used then the batteries would be checked/replaced more frequently.

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If your kind of emergencies happen with little or no warnings (ie: earthquakes) then every three months. If not (winter snow power line failures) then every six months. I would stack the removed batteries in the closet.

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davemchine
I've been replacing the batteries in my car emergency flashlights every six months. 4 Energizer D cells x 3 flashlights. Energizers website recommends every few months? What say we all?

What are these "batteries" you speak of for emergency flashlights?

Get a hand-crank or shake light, then never worry about it.

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….half as often as fleshlight…..???

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switch to flashlights that use AA size batteries & use Energizer lithium AA in them.