From: Dustin W. <dus...@ya...> - 2009-08-20 17:14:02
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Hi Dave: > It may depend on the battery. Cheap alkalines, for example, have a > high internal resistance and are unable to deliver big inrushes of > current like the NiCAD and NiMH batteries can. I have actually tried both. My NiCD are 7.2V and my NiMH are 6V but I think they may have been low on charge so I am recharging them. I'll let you know what I find. > And the voltage of a battery will droop when you take a big load from > it (Wifi represents a pretty significant load and it's quite bursty). I have actually observed this though I didn't realize what I was seeing. > When you look at batteries they have a couple of different ratings. > One is mAh (milliamp hours) which represents how long it should last >delivering a particular current. The other is N-C where N is a number. > > Here's some good background: <http://batteryuniversity.com/print-partone-16.htm> As usual you are a fountain of information. I will definitely read over that doc. Thanks again, Dustin |