As you probably already know installing a larger 24 Volt battery pack will increase the range, however, will not increase the torque or top speed. And increasing the battery pack Voltage from 24 Volts to 36 Volts will increase both the torque and the top speed at the same time. Some of our customers overvolt 24 Volt motors to 36 Volts and have no problems at all while others do the same thing and wind up burning out their motor in a short amount of time. So it is a gamble to overvolt a 24 Volt motor.
For more torque and the same top speed or more top speed (depending on the gear ratio), along with high reliability, a more powerful 24 Volt or 36 Volt gear motor and controller could be custom installed and used with a battery pack that is the same Voltage as the motor.
I was just looking at online photos of the Go Bowen 24 Volt 350 Watt ATV Quad and it looks like there is plenty of room inside of the frame for installing a larger motor and battery pack. I am not sure how many teeth the original motor's sprocket has or what size chain it uses so that would be something to consider if modifying the ATV to have a more powerful motor. We can help with gear ratios and sprocket selection if you decide to upgrade the motor.
Please let us know if you have any questions.
If you decide to use 18Ah batteries then for just a few dollars more 22Ah batteries are available which are the same dimensions as 18Ah batteries and will provide longer ride time. For either 18Ah or 22Ah batteries, we carry 2.5 Amp and 3 Amp battery chargers which will recharge them in the same time that a 1.6 Amp charger will recharge 12Ah batteries.
Regarding the controller, we recommend installing one that will allow for a motor upgrade down the road and also a 24 Volt 350 Watt motor will demand more than 350 watts when overvolted to 36 Volts. A 36 Volt 500 Watt controller would be fairly gentle on the 24 Volt 350 Watt motor while at the same time providing more power to it. A 36 Volt 750 or 1000 Watt controller would allow for upgrading to a more powerful 36 volt motor in the future, however, could potentially provide more current to the 24 Volt 350 Watt motor than it could handle if the ATV was used to go up hills or in deep sand or mud under full throttle conditions.
The original throttle could be reused with a 36 Volt controller, however, if the original throttle has a battery power level indicator then it would not function correctly on 36 Volts. If a throttle with properly functioning battery indicator is desired then a new 36 Volt throttle with battery indicator could be installed along with the new 36 Volt controller and battery pack.
For an easy to operate reverse switch we carry reverse contactors that can be controlled by an easy to use SPDT On-Off-On toggle switch. For a 36 Volt system, our reverse contactor item # RLY-RC36150 could be used. It is sold on this page https://electricscooterparts.com/relays.html#reverse-contactors and its wiring directions are available at this link: https://electricscooterparts.com/hookup/reverse-contactor-wiring-diagram.pdf
Our reverse contactors are fairly large, heavy, and industrial duty which is the reason for their high cost. For medium and high powered applications they are the only option that is available to replace the hard to operate rotary reverse switches though.
Please let us know if you have any questions.
If the ATV is run at the same Voltage with larger batteries and controller the ride time will be longer and the torque may be a little higher. If it is overvolted to 36V with a 500W controller then the top speed and torque should increase. And the same setup with an 800 Watt controller should provide increased top speed and torque over the 500W controller. If overvolted how long it will last is something that can not be predicted.
If a throttle speed limiter was installed between the throttle and controller then the controller's power output level could be limited to reduce the output power of the controller.
Richard Dimauro jr
1 person has this question