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i buy the good batteries, but they die so fast. i don't use them that often and i always make sure i turn off my electronics if not in use. what in the world could be making them die so fast?

i heard from somewhere that batteries can last longer if placed in a freezer. they didn't say how long, anyone ever tried this? i tried, but didn't work--what could i be doing wrong? i'm always having to buy new batteries for my cd player, tape recorder, and alarm clock.

2007-08-03 03:35:09 · 5 answers · asked by Anonymous in Consumer Electronics Other - Electronics

5 answers

Putting batteries in the freezer or refrigerator doesn't necessarily prolong their life

Alkaline batteries stored at "room temperature" self discharge at a rate of less than two percent per year. So normally refrigerating or freezing them will only help maintain their charge by a tiny amount. Hardly worth the effort of chilling them. However, if alkaline batteries are stored at higher temperatures they will start to lose capacity much quicker. At 85 degrees F they only lose about 5% per year, but at 100 degrees they lose 25% per year. So if you live in a very hot climate or are storing your batteries in a very hot location, it may be worthwhile for you to store your alkaline batteries in a refrigerator instead.

NiMH and NiCd batteries self discharge at a MUCH faster rate than alkaline batteries. In fact, at "room temperature" (about 70 degrees F) NiMH and NiCD batteries will self discharge a few percent PER DAY. Storing them at lower temperatures will slow their self discharge rate dramatically. NiMH batteries stored at freezing will retain over 90% of their charge for full month. So it might make sense to store them in a freezer. If you do, it's best to bring them back to room temperature before using them. Even if you don't freeze your NiMH batteries after charging them, you should store them in a cool place to minimize their self discharge.

2007-08-03 03:46:17 · answer #1 · answered by Michael K 5 · 1 0

Electronics in general, such as cd players and tape recorders, eat up batteries real fast. I have heard people say that putting batteries in the freezer makes them last longer too, but I have never noticed a difference when I do it, except for having cold batteries.

2007-08-03 03:44:14 · answer #2 · answered by Anonymous · 0 0

You are probably buying Ni-Cad batteries. Nicads will drain in an electronic device even when it is turned off. Take Ni-Cads out when you're not using the device.
Switch to Lithium Ion batteries, they will cost more but they don't drain with the power off, so they will last a lot longer.

2007-08-03 03:49:51 · answer #3 · answered by Sophie B 7 · 0 0

OR ... you could just buy re-chargable batteries. The kit costs a little ... but in the long run you would save money.

Less waste .. and you will be able to keep the same batteries for quite some time!

2007-08-03 04:07:32 · answer #4 · answered by Deener 2 · 0 0

If they're rechargeable, you'll probably ruin them forever by freezing them.

Whoever told you that is not very bright.

2007-08-03 06:18:29 · answer #5 · answered by Anonymous · 0 0

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