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Old 06-12-2013, 10:09 PM   #32 (permalink)
themainstreetexile
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Join Date: Jul 2012
Location: Melbourne, Australia
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Hi guys,

Sorry but notifications from ecomodder ended up in my spam folder somehow!

NiMh like being discharged, so having them sit for a long time isn't an issue (individual cells at 0.5V). They don't like high temperatures which might be an issue in summer for me, temperatures above 40 Celsius, so need fan cooling when driving. I have a set of fans I can pick up from one of the guys that gave me the cells, but might need to make up some more to be sure.

I'm a bit of an electronics noob, what is VPC?

I ordered a hobby charger so I can charge small strings and work out the usable capacity of the cells. Unfortunately the plug that came with it was broken so that will set me back a while. Basically I have to charge, discharge, charge, discharge again to get an amp hour count and work out which cells won't be suitable. Some are obviously dead as they physically bulge, so they're easy to spot and remove.

After the initial test I imagine I'll have to check cells every few months or so.

The pack voltage should indicate when enough cells are failing.
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