Author Topic: AA Battery Performance  (Read 2022 times)

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slurp

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AA Battery Performance
« on: 12 February, 2015, 10:36:05 PM »
I was digging around for standard AA battery performance in preparation for http://www.robotchallenge.org/ when I found http://www.batteryshowdown.com/

Bitbox produce some test kit for batteries and ran "high" and "low"drain tests on 40 different alkaline, lithium and zinc-chloride batteries. I found it interesting (and useful).

Best regards,
Colin

peteh

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Re: AA Battery Performance
« Reply #1 on: 14 February, 2015, 01:16:58 AM »
Good find. Some really interesting results - especially as the cut-off voltage increases.

For most purposes, I buy Kodak ExtraLife but I may have to re-think camera and motor-driving applications

slurp

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Re: AA Battery Performance
« Reply #2 on: 15 February, 2015, 08:16:31 PM »
from another forum:

Quote
I still find one of the most reliable MaHr tests for single cells is to put an appropriate resistor [to whatever current you want...] across the battery and put a quartz battery clock running on the loaded battery which stops running at .9 volts and record how long the clock runs. Some of the electronic MaHr methods seem to have quirks perhaps from intermittent battery voltage noise [I have a commercial unit that's supposed test by charge and discharge but gives uneven results]. The clocks are about $1. at a thrift store... :-) Having to record it manually is a nuisance...

Micromouseonline Forum

Re: AA Battery Performance
« Reply #2 on: 15 February, 2015, 08:16:31 PM »