On 11/01/2011 12:05, RussellMc wrote: > I suggested 0.2 ohm and a parallel volmeter - thus eliminating ammeter > drop. Add to that a bit of contact resistance - not a lot extra. > At 1V that's<=3D 5A. At 1.1V<=3D 5.5A. At 1.2V<=3D 6A. I'd be surprised > if it actually managed that. It may. Judging from the original link (seems very thorough comparison of=20 various cells) posted by C.C which I checked out (eneloop 2000mAh=20 attached) - looks like the eneloop managed 10A for around 9.4 mins,=20 initially at around 1.1V dropping to 1V but holding there well. Seemed=20 to be one of the best performance wise anyway - many others managed <5A . Looking at the graphs was very informative, just the info I would be=20 looking for if selecting a cell (various V/Ah curves at different=20 discharge rates from around 0.5A to 10A or wherever the battery fails to=20 sustain voltage - as M.W notes the resistance is not completely linear,=20 looks to get to a certain point then drop rapidly with NiMh) The above method suggested would seem a simple way to determine this=20 reasonably accurately though, shouldn't be too hard (with a bit of c.s=20 applied) It's probably what I would do. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .