two controllers in series

[mnplus1556]

hello!! i was looking into if it would be possible to wire 2 controllers in series? they are both the same controller. 24 volt and 30 amp max. so i was thinking that i would hook up each controller to a separate 24v battery pack. would i be able to use one twist throttle for both of them? it is the kind of throttle with 3 wires: black, green/blue, and red. if this is possible would i be able to wire the output(to the motor) from the controllers in series to get 48 volts? and run the motor off 48 volts?? another question: if both controllers are rated for 30 amps max i'm going to have a 30 amp fuse between each battery pack and each controller. so does that mean that the controllers put together in series will output 60 amps max getting 2880 watts(48X60)? or would it be putting out 30 amps max, 1440 watts(48X30)? thanks so much!!

 

[PedalingBiped]

Only one controller per motor. Just use max V.

 

[neptronix]

I haven't heard of anyone doing this.
It sounds both unsafe and not possible.

The solution is to get a better controller that can handle all that power to begin with. There are controllers that will handle up to 150 volts for sale on this forum.

 

[Jeremy Harris]

hello!! i was looking into if it would be possible to wire 2 controllers in series? they are both the same controller. 24 volt and 30 amp max. so i was thinking that i would hook up each controller to a separate 24v battery pack. would i be able to use one twist throttle for both of them? it is the kind of throttle with 3 wires: black, green/blue, and red.

This isn't "wired in series", it sounds like you want to run two separate controllers from two separate batteries and share the same throttle. This should work, but you should only power the throttle from one of the two controllers. Run all three throttle wires from one controller to the throttle and only run the ground and throttle voltage output wires from the second controller to the throttle. The ground wire is normally black and the throttle voltage output wire is usually green or blue.

Be aware that both battery packs will have a common ground connection via the throttle.

if this is possible would i be able to wire the output(to the motor) from the controllers in series to get 48 volts? and run the motor off 48 volts??

No. The two motors will have to be run separately and not connected together. You cannot wire two controllers to one motor safely, at least not without rewiring the motor so that it's electrically two motors in effect.

another question: if both controllers are rated for 30 amps max i'm going to have a 30 amp fuse between each battery pack and each controller. so does that mean that the controllers put together in series will output 60 amps max getting 2880 watts(48X60)? or would it be putting out 30 amps max, 1440 watts(48X30)? thanks so much!!

I'd size the fuse to protect the cables in the event of a dead short somewhere, it won't act fast enough to protect the controller or electronics. Be aware that controller ratings are often fairly inaccurate and some controllers will allow significantly higher current for short periods. I'd suggest that your fuses need to be bigger than 30A for a 30A rated controller, more like 50 to 75A.

The rest of this question doesn't have an answer, as you can't easily hook two controllers up to a single motor.

Jeremy

 

[mnplus1556]

ok thanks everyone