2011 RXV Problems accelerating

[RipFX20]

Have a 2011 RXV, been having trouble with acceleration, turn key to forward, seliniod clicks in, cart will start moving forward, and if you are on a slight incline it will start moving and just shut down with the brake locking up. Does it on level ground at times also, batteries are fully charged, showing 50.1 volts, drops to 48 thru the selinoid.
Today it done it with my grandsons riding around on it, and by the time they got back with it the motor was so hot it took 45 minutes to cool off.
Any tips or suggestions would be greatly appreciated.

[BobBoyce]

Originally Posted by RipFX20

Have a 2011 RXV, been having trouble with acceleration, turn key to forward, seliniod clicks in, cart will start moving forward, and if you are on a slight incline it will start moving and just shut down with the brake locking up. Does it on level ground at times also, batteries are fully charged, showing 50.1 volts, drops to 48 thru the selinoid.
Today it done it with my grandsons riding around on it, and by the time they got back with it the motor was so hot it took 45 minutes to cool off.
Any tips or suggestions would be greatly appreciated.

Common RXV issue as batteries age. Obviously the battery voltage is fine at rest when checked, but under load the voltage sags. 48V is dead. The solenoids used on those early RXVs were also not very good. I would suggest that you replace the solenoid first with the 36V (coil voltage) 400A solenoid used with the newer Curtis controllers.

[RipFX20]

Thanks for the help, the batteries are less than a year old.
I will see if I can get one of the newer selinoids ordered this week and give that a try, and I am planning on checking the battery voltage while driving it this weekend.

[cgtech]

One cannot assess battery health by age, only by how they actually perform in the cart, or on a discharge test.