Rechargeable batteries

I need to buy a battery charger for my Radio Shack AAA batteries. I see
two chargers at Radio Shack, one will charge in 5 hours, the other in 13
hours. What are the advantages/disadvantages of each? Thanks.

 

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Usually the faster that you charge, the shorter the total battery life.

Jack

 

The main disadvantage of both, is that they come from Radio Shack
Kim

 

Thanks, but what do you base this opinion on?

 

Fast charging is more convenient. But, with many types of chargeable
batteries, faster charging may make a shorter life for them. I personly
prefer the fast charge. In the end, you are still saving a lot of money for
the batteries, even if they have to be replaced one or two times a year.
After about 2 to 3 years, most chargeable batteries are scrap anyways...

 

Has anyone ever heard of rechargeable Ni-MH batteries not working below
32 degrees temperature?

 

NiMH batteries will supply voltage under 32 degrees, but it isn't
wise to charge them that cold. The oxygen ion recycling mechanism
slows down a lot and you could build up a lot of pressure, eventually
causing it to vent.

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