Been toying with the Idea of internal charging for a while...that and some theories about our choices in batteries and discharge ratings vs battery longevity...hows this...Tada a protected internal charging 10 amp 3-6v VV mod slightly smaller than a pack of cigarettes
Please bear in mind this is the proof of concept unit...I just made one for a friend that is much neater but cant find my digital camera now...waaaa when I find the camera I will swap the pics w the neat clean unit I am testing before handing to my friend...
this unit has been in operation for 3 mo now and the batts are staying balanced...that seems to backupo my theory that if we use batts overratted for the job w adaquate protection and put the juice back in the same way it went out they will stay happy...
charge time 2-3 hr runtime 2-3 days of course Ymmv