> 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.