Re: [Electric Boats] battery issue

 

Mark:   On a closer reading I see you cleaned the battery contacts. I was thinking are you sure you replaced the jumpers back on the SAME batteries? Perhaps the jumper was moved to battery four and that's why that battery now shows a failing battery. I would also recheck the connections to the battery. A poor connection in the jumper might also cause it to heat up.   Capt. Mike http://biankablog.blogspot.com   --- On Sat, 6/18/11, acsarfkram <acsarfkram@yahoo.com> wrote: From: acsarfkram <acsarfkram@yahoo.com> Subject: [Electric Boats] battery issue To: electricboats@yahoogroups.com Date: Saturday, June 18, 2011, 3:12 AM   My PakTrakr warned of a failing battery, battery #2. Under load of 40-50 amps #2 was running in the low 11 volts. I cleaned up the contacts (and found a loose connection between #2 and #3!!)and the alert went away. Then I ran the motor at 30 or so amps for five minutes and got an Alert on the #4 battery. The reading under load was again in the low 11 volts but on the #4 battery. The #2 battery is now right with the other batteries, in the upper 12 volt range. The jumper wire from #4 to #3 is getting warm while all the other jumpers are cool. I'm preparing for a bad battery but curious about the migration of PakTrakr Alert. Any thoughts? Four group 27 AGMs for a 48 volt bank Mark Santa Cruz

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