On my little boat I have no means of recharging the battery....but I do have a 5hp outboard engine! I removed the flywheel and inside was the coil providing the spark with a vacant space opposite. With some steel sheet and copper wire from a motor rewinders I made a coil! Someone donated me a gadet which converts the AC to DC. Guess what, at about
75% revs I got 2 amps at 12.5 volts perfect.The problem is I've started to think this is too easy something must be wrong. As you increase the revs the volts increase, as you decrease the revs the volts decrease what will the battery think about the differrent voltage ? or is the current so small it won't be bothered? Does the battery still get some benifit when the volts are low?
This can't be rocked science our garden grass cutter charges a battery with no problem..... do I have to go out and but a widget or somthing ?
Any thoughts anybody
Regards,
Poorfruitcake