[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: (ET) New Pack Voltage



This makes for a nice synopsis concerning SOC and voltage readings to be expected from a variety of lead acid battery types.

http://giantbatteryco.com/GLOSSARY/Specific.Gravity-Industrial.Batteries.html





RJ




John J Casey wrote:
With thanks to RJ, Dave and Paul it appears my battery pack is healthy. Had checked spg early on and again today....1.3 or greater in all cells.
Cheers, Jack

On Sep 21, 2008, at 5:49 PM, RJ Kanary wrote:

    No problem that I can see. Once everyone is well broken in slightly longer charging cycles will put the numbers where you'd like to see them.The equalization phase of charging may not have been completed when you checked them.

   Of course the ultimate Luddite weapon for determining state of charge is the nice messy hydrometer.............................

RJ

John J Casey wrote:
Have a new pack of T-105's as of January '08.  At that time got a new capacitor from Harold for the onboard charger.  The first 13 charge cycles registered 45v or a bit higher over an 18 hr charge time.  I was happy. The next 9 charge cycles, up till today, register 44.4-44.6v.  My understanding is that a healthy pack must have a finish charge of 45v.  Load test with mower running gave me 6.08v and 6.09v for the two front batteries and 6.13-6.19v for the four rear batteries.  Do I have a problem?
Thanks,
Jack
------------------------------------------------------------------------
_______________________________________________
Elec-trak mailing list
Elec-trak cosmos phy tufts edu
https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak