Topic: electical motion question

[tramp]

understanding that there is no such thing as perpetual motion
can a generator from a different source keep a battery charged
while the battery is working turning a motor?
here is my thought
a small motor battery set up to power a bicycle
with the generator working off one of the wheels to recharge the battery

[Caaveman82]

understanding that there is no such thing as perpetual motion
can a generator from a different source keep a battery charged
while the battery is working turning a motor?
here is my thought
a small motor battery set up to power a bicycle
with the generator working off one of the wheels to recharge the battery

Absolutely but eventually something fails. Too much friction, bearing failure, motor gives out, things of that nature.

[City Boy]

Hi Tramp.I think the power draw will exceed the generation supplied and slow discharge of battery will ensue.   Rock On

[tramp]

Hi Tramp.I think the power draw will exceed the generation supplied and slow discharge of battery will ensue.   Rock On

i know that taking the generator off the motor will cause a small drain
but i was thinking that taking one of the wheels to run the generator would not be a drain on the battery
gearing the bike properly would not require a large motor
and running a drive belt off one of the tires would recharge the battery

[City Boy]

Hi.Moving the drain will not reduce the drain. The power draw to overcome friction and wind resistance will exceed the generation developed I think.           Rock On

[Gordon]

The battery powering the motor will run down faster if it's also powering a generator to recharge it, than it would if it were just powering the bicycle. 

Now if you could design it so the generator only kicks in when going downhil or when you're pedaling, that would be a different story. 

[tramp]

i see what your saying
no matter where i put the generator the battery is powering it

[johnny_from_bel]

understanding that there is no such thing as perpetual motion
can a generator from a different source keep a battery charged
while the battery is working turning a motor?
here is my thought
a small motor battery set up to power a bicycle
with the generator working off one of the wheels to recharge the battery

No, it kan not keep it charged. In fact due to the extra friction of the generator the battery will run down faster. You are better of running the motor without the generator.

This is a result of the first law of thermodynamics.