Long term storage of camera batteries

Maybe there is some helpful info here:

Energizers are particularily bad about this. They are great for many months and then puke.

The Rayovac Hybrid (Walmart...look for the rebate) and the Sony Eneloop are a different NiMH technology that maintain their charge. They have a lower mAh rating but you will never notice because the self-discharge rate is so low. Store them charged. I can't help you with the LiIon. ; )

I've cross-posted this to sci.chem.electrochem.battery . Maybe someone there can answer your question.

Try the new Sanyo Eneloop NiMH cells. They are supposed to have a much slower self discharge rate.

Ted

I would simply recharge them maybe once per month. You could have been unlucky and just bought poor batteries. I rarely use my camera and have no problems with rechargeable batteries.

Take a look at

I would just charge before use. Keep a set of NON rechargable Lithium backups.

greg

Rayovac Hybrid or Sony Eneloop. They hold their charge, no need to charge before use. They won't all of a sudden "go bad".

If you leave the batteries in the camera, they will be discharged to zip by the camera's clock (if it has one) and the configuration RAM (assuming that also exists).

The cameras I've checked (one Olympus, one Kodak) lose configuration settings if the batteries are removed for several minutes. This means that there is a constant small drain on the batteries.

The simple solution is to remove the batteries from the camera and store them in a cool place.

Remember to charge them before use.

John