[RE-wrenches] How Best to Load Test 2 V Cells

[Jeff Clearwater]

Hey Good Folks,

I've got a 2300 AH AGM pack of 2 Volt cells that is showing signs of 
premature aging (only 600 cycles) and I need to test the AH capacity of 
each cell to help the customer make decisions going forward of whether 
to replace individual lagging cells or the whole pack.

What equipment have folks used to do AHour tests on 2 Volt 2300 AH 
cells?  I've done plenty of load testing on 6, 12, 24 and 48 volt packs 
as a whole but am not sure what's my best approach is for 2 volt 
individual tests.

I know I could put a  resistance load and then use an AHour integrator 
unit - but does anyone know of what unit and what resistive load I'd use 
at 2 volts?  That would be a large device at that voltage to get any 
appreciative wattage! - I'd like to do a 10 hour test at most.

I see 2 V test units on the web but they only appear to be hooked up for 
a small amount of time - so they can't be testing full to empty 
discharge AHours.

Thanks!

Jeff Clearwater
Village Power Design
www.villagepowerdesign.com <http://www.villagepowerdesign.com>
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