USB Powered AA NiMH - NiCd Battery Charger by LM393

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The charger in this project is designed to charge two AA NiMH or NiCd cells of any capacity (as long as they are the same) at about 470mA. It will charge 700mAh NiCds in about 1.5 hours, 1500mAh NiMHs in about 3.5 hours, and 2500mAh NiMHs in about 5.5 hours. The charger incorporates an automatic charge cut-off circuit based on cell temperature, and the cells can be left in the charger indefinitely after cut-off.

Read more Source:
http://www.stefanv.com/electronics/usb_charger.html
http://electronics-diy.com/
Thank you.

This entry was posted on Sunday, March 30th, 2008 at 2:43 pm and is filed under battery charger. You can follow any responses to this entry through the RSS 2.0 feed.