I have a Xantrex 12v rechargeable 600 Power Pack battery. Yesterday I charged it up and then attached a 12v smaller alarm battery. I forgot to check a few hours later. However, 8 hours later I disconnected the two and found the alarm battery at 11.1 volts, and the Xantrex at 0%. I'm recharging the Xantrex now. Did I somehow harm it?
Sounds like you connected them in series ie plus to minus and minus to plus, instead of plus to plus and minus to minus!
But you should have seen the spark?:-?
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John G
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on 21/05/2012, W. eWatson supposed :
> I have a Xantrex 12v rechargeable 600 Power Pack battery. Yesterday I
charged
> it up and then attached a 12v smaller alarm battery. I forgot to check
a few
> hours later. However, 8 hours later I disconnected the two and found
the
> alarm battery at 11.1 volts, and the Xantrex at 0%. I'm recharging the
> Xantrex now. Did I somehow harm it?
Sounds like you connected them in series
ie plus to minus and
minus to plus, instead of plus to plus and
minus to minus!
But you should have seen the spark?:-?
I sure didn't get any help from Xantrex on the this matter. They have discontinued the battery. It had a six month warranty, but I bought it
14 months ago. After two days, it has dfropped to 70% charged. I'll try the recharge tomorrow of the alarm battery with a far cheaper power pack that I've used to kick car batteries into action.
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