With a 3 year old I had a bunch of NiMH AA's lying around, so I decided to build a quick and easy Optronics MR16 20W 10 degree halogen headlight. I used two AA 6-pack holders in series and overvolt the lamps. The light seems pretty good, but I haven't gotten it out on the road yet so this is based upon garage checking. I'm curious to see how it compares to the dual 2xAA Ultrafire Cree Q5 setup I have on the other bike.
I happen to have a DeWalt DW9180 charger lying around unused. It is labeled for 1-hour charging 7.2-18V. The output is listed at 2.8 Amps DC.
Would it be safe to crack this open and run it to my AA battery pack so I don't have to take the AAs out and put them on 3 separate 4 battery chargers? It sure would be handy.
Incidentally, I found an optronics head that I like much better, but it is an h3 setup. ANyone know where I can get a 25 watt or less H3 bulb?