On Mon, 04 Feb 2008 17:18:35 -0500, Neil Cherry wrote:
> I've decided that with the rather odd weather in NJ (no snow) that I
> would take advantage of the 'nice' weather and start riding into work.
> Because of the strange construction habits of some of the roadways (very
> bad engineering) I need to travel pre-rush hour (none of the roads are
> bike friendly).
>
> I'm putting my commuter and backup bikes back together (they're in
> various stages of construction) and I'm getting my lighting system
> straightened out. Right now the systems I have use 'D' size batteries. If
> I switch over to rechargeables then I'll be getting 'C' size batteries
> inside a 'D' size case. I'd like something a little more friendly (as in
> rechargeable). I'm not overly concerned with weight as I have a nice bike
> trailer and any extra weight is used as a training tool. I just don't
> want some huge monstrosity. Anyone have any good pointers on batteries?
> Should I look at PWM to regulate the power usage? Any other ideas?

Neil,

You can get "real" NiMH D-cells. I've personally tested and use these in
some LED lanterns I have. Excellent cells. These things are definitely not
re-packaged C-cells -- they weight about 6 oz. each, nearly twice what a
NiMH C-cell weighs.

http://www.all-battery.com/index.asp?PageAction=VIEWPROD&ProdID=568

Matt Pobursky
Maximum Performance Systems
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