Posted by John T on January 30, 2011 at 06:05:48 from (66.87.0.128):
In Reply to: Battery theory.... posted by Dellbertt on January 30, 2011 at 05:27:29:
Dell, no harm in thinkin, I been guilty of that myself lol
NO it wont work, a 12 volt battery is sort of like two sixes (or 6 2.1's) in series, inside that case are 6 cells of 2.1 volts each all in series. Trouble is when you discharge that 12 volt battery ALLLLLLLLL its cells, including three that make up 6 volts, become depleted.
When a 12 volt gets anywhere near that voltage ITS DEADER N A DOORNAIL and sure wont crank a starter.
HOWEVER way back when I was a kid some old crusty mechanics would screw a brass screw down inside a 12 volt battery in the mid point AND IT WAS 6.3 VOLTS ACROSS.
So the short answer is NO to discharging a regular 12 volt battery and get work and use out of it as a 6 volt unless you could get a real high current efficient POST in the mid point and NOT have it discharged.
NOTE years back I bought a 6/12 battery that indeed had a center post and a solenoid all built in. It was used to start the vehicle on 12 then run on 6 by the solenoid on top.
All are entitled to their own opinions and Id bet most (likely alllllll) who answer this share my opinion and that below, we will see.
Still a legitimate question Dell, gotaa like your curiosity
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