Re: Charging an 8 volt battery

Posted by souNdguy on February 14, 2006 at 12:17:51 from (12.64.55.136):

In Reply to: Charging an 8 volt battery posted by Jeff Jackson on February 13, 2006 at 06:17:06:

2 good options come to mind.

Build a circuit to install inline with the battery and then charge with a 12v charger.. ( seies pas regulator.. or zenir shunt regulator.. or even a diode junction based regulator, figuring in forward voltage drop... as your target will be in the 9v range.

Could also hit an electronics supply store and buy a wall transformer / battery eliminator in the 9v range, and slap some gator clips on the end.. or get one of those multi-voltage power adapters that plug into a cig lighter and let you select lower voltages like 9v, 7.5v 6v.. etc.. and use that in conjunction with a 12v charger.. just play with the current settings on the charger and have a vom hooked up to see charge voltage using the 9v setting ont he adapter.

As another poster said.. you need a higher potential at the charge source to get current flow.. thus to fully charge your battery.. you need 9 or just over 9v.. etc.

Soundguy

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