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Old Dec 08, 2010, 01:15 PM
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United States, CA, Midway City
Joined Dec 2003
3,454 Posts
Didn't know why I didn't put this up before. Here's a graph of a 2S A123 1100 vs 5S IB1200 NiMh I did last year. The 5S IB pack was 2 years old at the time but hadn't seen more than 30-40 cycles.

As you can see, the first 15 minutes at .5A rate, the Nimh has higher voltage after which the Nimh is lower, But even after an houor the difference is just .06v lower.

The .5A is a good rate to use for avg consumption for testing purposes. 4A is ok for peak, though I like to make usre with 6A myself these days.

Hopefully, this should give more people confidence in using 2s LiFe to replace 5s NiMh.
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