-> not its batteries... they'll still be on the internal circut... the
-> externals... to charge them... hummm, and now i just thought about how to keep
-> the seperate charges from getting out to the others... maybe the relay idea
-> isn't so bad... i built a bench power supply that uses a relay driven by 12 vdc
-> off a rectifier to know when to open the drain shorting resistors i place on
-> the capacitors when power if off... its a rather simple design... using a
-> wallwart as an external power supply detector should be a relavtie no
-> brainer... now to locate info on something that can handle the current thru the
-> contacts... possibly a heavy duty automotive fog lamp relay?

 That should work quite well. 
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