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KristinaJ

11:10AM | 05/23/08
Member Since: 06/29/07
9 lifetime posts
Bvelectrical
I want to replace some old rechargable batteries on an old mp3 player made in Germany. The batteries in it are Ni-MH batteries of 1.2V and 1500mAh. What does mAh stand for? Is it safe to replace these batteries with rechargable NiMH batteries with the same voltage but 1000mAh? I do not want to damage this old mp3 player with incorrect electrical circulation.

Kristina

TimBonham

01:12PM | 05/26/08
Member Since: 01/09/07
197 lifetime posts
Yes, it is safe to use those replacements.

mAh is milli-Amp-hour, basically a measurement of the amount of electricity that those batteries will store. In other words, how long they will operate the device before running down and needing a recharge.

The replacements that you are considering only hold about 2/3rds of the charge in the original ones, so your device will run out of electricity faster with them. But it will still work for a while, and safely. Just not as convenient.

In the meantime, you should probably continue looking for for higher capacity batteries like the originals. They are available in the US. You will probably find the frequent recharges needed with these smaller ones annoying.

KristinaJ

10:09AM | 05/29/08
Member Since: 06/29/07
9 lifetime posts
Thank you for the advice. I have found a rechargable battery with 2/5 more mAh more than the original ones!


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