Quote:
Originally Posted by gascort
Anyone have a good idea for getting 2V?
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I have a
hillbilly way of getting 2v. Don't know if it's a
good idea:
Get an old battery (that still works).
Drive a screw into the top of the case in such a way that you make contact with the cell interconnect and tap just one cell (6 2.x volt cells per 12v battery). Recharging may be an issue though.
A guy at a parts store told me about this approach. He said he occasionally provided old batteries to a farmer who needed 10v for an electric fence. He tapped the battery using this method.
You could theoretically use each of the 6 cells, then recharge the battery. Of course if the cells aren't drawn down to the same state of charge each time (unlikely), the cells will be unbalanced, and the battery will soon be toast.