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Charging an alarm battery

Started by W. eWatson May 20, 2012
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?
On 5/20/2012 10:50 AM, W. eWatson wrote:
> 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?
Not enough info. Any answer would be a guess.
On 5/20/2012 9:17 AM, Tom Biasi wrote:
> On 5/20/2012 10:50 AM, W. eWatson wrote: >> 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? > Not enough info. Any answer would be a guess. >
Well, I just recharged the Xantrex. I'll watch the charge over several days.
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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?:-? -- John G ------=mesnews_0_0521121003 Content-Type: text/html Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META content=3D"text/html; charset=3Dwindows-1252" http-equiv=3DContent-Type> <META name=3DGENERATOR content=3D"MSHTML 8.00.6001.19222"></HEAD> <BODY><CR> <DIV>on 21/05/2012, W. eWatson supposed :</DIV> <DIV>&gt; I have a Xantrex 12v rechargeable 600 Power Pack battery. Yesterday I charged </DIV> <DIV>&gt; it up and then attached a 12v smaller alarm battery. I forgot to check a few </DIV> <DIV>&gt; hours later. However, 8 hours later I disconnected the two and found the </DIV> <DIV>&gt; alarm battery at 11.1 volts, and the Xantrex at 0%. I'm recharging the </DIV> <DIV>&gt; Xantrex now. Did I somehow harm it?</DIV> <DIV>&nbsp;</DIV> <DIV>Sounds like you connected them in series</DIV> <DIV>ie <FONT color=3D#ff0000>plus</FONT> to <STRONG>minus</STRONG> and <STRONG>minus</STRONG> to <FONT color=3D#ff0000>plus</FONT>, instead of <FONT color=3D#ff0000>plus</FONT> to <FONT color=3D#ff0000>plus</FONT> and <STRONG>minus</STRONG> to <STRONG>minus</STRONG>!</DIV> <DIV>&nbsp;</DIV> <DIV>But you should have seen the spark?:-? </DIV><PRE id=3D"signature"><CR> -- John G</PRE></BODY></HTML> ------=mesnews_0_0521121003--
On 5/20/2012 12:47 PM, W. eWatson wrote:
> On 5/20/2012 9:17 AM, Tom Biasi wrote: >> On 5/20/2012 10:50 AM, W. eWatson wrote: >>> 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? >> Not enough info. Any answer would be a guess. >> > Well, I just recharged the Xantrex. I'll watch the charge over several > days.
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.