ipwnr
Member
ok so I'm going to install a bicycle engine kit on my bicycle and I'm going to be pulling a trailer with a 640watt audio amp driving 2 subs nd 2 tweeters my only problem is when i have the playing at full blast it will only last 30-40 min on a full charge on my 14ah sla battery so i was thinking since i have a extra alternator and was thinking of running a friction drive system from the alternator to my rear wheel and when i want to slow down i will give the coil in the rotor 12v straight from the battery and it will charge the battery and slow down my bike but when i want to charge the battery continuously i will run it through a voltage regulator at around maybe 3v-8v to charge the battery and i also may add a bigger deep cycle car battery
