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Registered Member #191
Joined: Fri Feb 17 2006, 02:01AM
Location: Esbjerg Denmark
Posts: 720
12v wallwarts will go up to like 15V under lower loads, and will be find for charging, aslong as you rate it at c/10 and don't leave it for longer than 12hours.
Registered Member #1208
Joined: Thu Jan 03 2008, 05:30PM
Location: Chesterland, OH
Posts: 154
i had a 12v lead acid battery charger. i hooked it to the photoflash inverter for my coilgun, and something fried!. i checked it on a multimeter 15vdc and 22vac!! i think the AC fried the circuit. i screwed up the polarity, so that may have had something to do with it.
main point: don't trust wall warts with anything sensative!.
sidenote: it did electrolosise (sp?) quite well. (i was making NaClO3 (sodium chlorate) from NaCl (salt)maybe use your un-regulated wall wart instead of the battery for the electrolysis
Registered Member #505
Joined: Sun Nov 19 2006, 06:42PM
Location: Yorkshire!
Posts: 329
Yuasa (batteries) and Texas Instruments (ICs) both have battery charging application notes. Diggin around on the Yuasa site should yield some good information
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lead acid battery
