Will I fry motor by adding batteries?

[ukrkoz]

I have 24V electric motor that operates kids ATV. Sorry, not quite a garage question..
I added a 2nd battery to increase its capacity.
All worked well, grandson ran that ATV in our wetland for several times, got stuck in mud, the usual.
ATV is about 4-5 yrs old, been through wetland every year.
Yesterday, after his last joy ride through puddles and such 2 days before, I found, that motor seized. Took me time and some torque to make it spin again, now it spins but rattles like crazy and won't spin from controller.
I have spare one ordered, but have a question. Batteries are connected in parallel, as they should, for capacity.
That will not fry the motor, right? And, what happened, is likely just regular water and dirt damage, as he had it once stuck pretty much half height deep in muddy water?
Before I install the replacement motor, you know....
Thank you

 

[PCustoms]

Overvoltage can fry motor.

Too much 24v capacity can't.

Odds are mud, water and **** seized motor due to corrosion.

 

[ukrkoz]

Thank you.
That's what I thought. Doesn't hurt to ask, he he. That thing makes our life much easier, new ones are very expensive.

 

[Chuckster in NJ]

Most likely the plastic gears are broken and causing the noise.

 

[fitter30]

Wonder if doubling the ah ( storage) the design of the motor could handle lock rotor with say 100ah but with 200 ah it couldn't. Agree with the noise probably gears.

 

[mm08822]

Hopefully the motor has thermal overload protection and a slow blow fuse in line.

If not, a higher ah capacity could be providing more time to cook the windings if someone stayed on the throttle.

 

[wyliesdiesels]

Increasing battery capacity by paralleling will not harm the motor… if you connected them in series it would harm the motor as the voltage would double

 

[onewheat]

My nephew ran a Power Wheels quad with screws in the tires for traction and two batteries IN SERIES for a while before he outgrew it. It was quite the quick, little yard burner.

 

[duneslider]

I have 24V electric motor that operates kids ATV. Sorry, not quite a garage question..
I added a 2nd battery to increase its capacity.
All worked well, grandson ran that ATV in our wetland for several times, got stuck in mud, the usual.
ATV is about 4-5 yrs old, been through wetland every year.
Yesterday, after his last joy ride through puddles and such 2 days before, I found, that motor seized. Took me time and some torque to make it spin again, now it spins but rattles like crazy and won't spin from controller.
I have spare one ordered, but have a question. Batteries are connected in parallel, as they should, for capacity.
That will not fry the motor, right? And, what happened, is likely just regular water and dirt damage, as he had it once stuck pretty much half height deep in muddy water?
Before I install the replacement motor, you know....
Thank you

Is this more of a "real" atv, rubber air filled tires? Or a powerwheels ATV, hard plastic tires?

Extra capacity (batteries in parallel) usually won't harm anything but could allow for long enough run time that motors could overheat and get ruined.

I suspect the issue here was the motor/s ingesting water and mud. The powerwheels atv's definitely are not designed with water and mud in mind. An electric Chinese ATV likely also isn't designed for much water and mud either.