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? Thanks -- Linux Home Automation Neil Cherry ncherry@linuxha.com http://www.linuxha.com/ Main site http://linuxha.blogspot.com/ My HA Blog Author of: Linux Smart Homes For Dummies -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist