Have any of you guys ever used one of them 12 volt rechagable batteries (for kids Power wheels or other riding toys) on your bikes to power a 12volt headlight, horns and such? I was thinking of using one but don't want to purchase it if they won't work. Them being rechargable definitelty gives them an advantage over the regular bike lights.
Also what about 12v power tool batteries?
Also what about 12v power tool batteries?