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Author Topic: Unused battery, is there hope for revival after 3 years?  (Read 278 times)

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Offline Mapog

Unused battery, is there hope for revival after 3 years?
« on: March 21, 2019, 02:20:53 pm »
I purchased a product were a battery stood for 4 years, but the positive was disconnected.

I see some battery chargers claim they can revive dead batteries?
My question is wheter its possible?
Or should I just consider it dead?
 

Offline Welsh

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Re: Unused battery, is there hope for revival after 3 years?
« Reply #1 on: March 21, 2019, 02:25:55 pm »
First connect it to a live battery to give it some charge, otherwise the intelligent charger may not “see” it 👍😎
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Offline espresso

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Re: Unused battery, is there hope for revival after 3 years?
« Reply #2 on: March 21, 2019, 04:27:36 pm »
I purchased a product were a battery stood for 4 years, but the positive was disconnected.

I see some battery chargers claim they can revive dead batteries?
My question is wheter its possible?
Or should I just consider it dead?

Lead acid =  dead.
 

Offline silvrav

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Re: Unused battery, is there hope for revival after 3 years?
« Reply #3 on: March 21, 2019, 09:13:24 pm »
depends what type and if it was fully charged before left standing.

Try and give it a charge and see. Some batteries can be revived by giving it a high sudden input, but use quality chargers for this
 

Online Bundu

Re: Unused battery, is there hope for revival after 3 years?
« Reply #4 on: March 21, 2019, 09:37:00 pm »
you might 'revive' it by 1st blasting it with a power supply and then charging normally, but my experience has been that the battery, if reviveable at all, would only have about 20% of its design capacity