Razor W1311-161-20-15 E100/E125 Scooter Volt Controller with 7 Connectors (24 V)

Good work

Llegó rápido y cumple con la descripción!

Brought back to life a Razor E175 scooter I bought from Goodwill for my son. These speed controllers are fairly simple devices but a lot of other things have to working properly for the controller to provide power to the motor. In other words, the device only provides voltage from the batteries to the motor if the following conditions are met: battery voltage must be greater than 20.5 Vdc (low cut-off protection), brake must be disabled (not braked), grip throttle must be rotated (on), and the motor must already be spinning (ie., kick start or push start). If any of those conditions are not met, the motor will not run. There are two relays internal to this speed controller, they are in series, both relays must be closed (on) to work. One relay is controlled by the grip throttle, you should hear it click when you rotate it. The other relay is controlled by the brake, the low-voltage cutoff and checking to see if the motor is spinning, and you may not hear it click. You can't just spin the motor with your hand either, if you're just bench-top checking your scooter, the motor has to be spinning at near top speed before the relay will kick in and provide voltage to keep it going. I assume they designed it this way since the throttle is not proportional (it's either on or off), simpler/cheaper electronics, and this prevents kids of from unexpected acceleration from what would be just an instant start. This is at least the case for some of the lower-model Razor scooters that require the push start. Anyway, long winded review, but hopefully this helps you diagnose if you need a new controller or not. In other words, check the batteries (they tend to wear out quickly and fail to be able to meet the low voltage cut-off requirements) with a DMM, the throttle grip to make sure the relay clicks, and make sure the brake switch is working (use a DMM for that too). The last thing it could be is the motor, but those are fairly robust and don't tend to fail as easily as these other parts. You can check the motor with a DMM also, just give the wheel a spin and see if you can measure a couple volts at the motor terminals. Happy scootering!

No me sirvió, no es para patin electrico

Seemed to work