Battery Question

[neil154]

I just got 2 brand new OEM batteries for my wife's and my S3. I am planning on fully charging them and then putting them in our cars just in case we need the battery and are not at home to recharge.

How long will a fully charged battery stay essentiially fully charged if it is just left unused?

 

[pgus13]

I am not a battery guru but I don't think it would be a good idea, especially in the summer because I think the battery would explode due to the heat.

 

[davidmanvell]

I have extensive knowledge on batteries. Work with them for a living.

After 3 months you will most likely not be able to charge it up again so I would recharge them often (Once a week). Also remember that low and hot temperatures will also drain a battery and / or ruin a battery completely.

 

[neil154]

I have extensive knowledge on batteries. Work with them for a living.

After 3 months you will most likely not be able to charge it up again so I would recharge them often (Once a week). Also remember that low and hot temperatures will also drain a battery and / or ruin a battery completely.

Thank you for the advice. I never would have guessed that after 3 months of non use that I would not be able to charge it