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Old 01-11-2017, 08:18 PM   #1
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Default Can a 3Cell LiPo run this motor?

can i use a 3 cell liPo for this motor? https://hobbyking.com/en_us/turnigy-...-approved.html

the motor spec says
"Max voltage: 7.4 (2S)
Max Current: 22A"
i hooked it up to my 3 cell with no load and it runs, will i damage it by running in 3 cells?
im going to run 3 of these motors with one 3cell LiPo
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Old 01-11-2017, 08:26 PM   #2
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Quote:
Originally Posted by masterfo View Post
can i use a 3 cell liPo for this motor? https://hobbyking.com/en_us/turnigy-...-approved.html

the motor spec says
"Max voltage: 7.4 (2S)
Max Current: 22A"
i hooked it up to my 3 cell with no load and it runs, will i damage it by running in 3 cells?
im going to run 3 of these motors with one 3cell LiPo
eventually you will kill the motor if you exceed its max voltage. It'll start getting hot and if you don't keep an eye on temps it'll overheat.
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Old 01-14-2017, 01:11 AM   #3
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Originally Posted by EbbTide View Post
eventually you will kill the motor if you exceed its max voltage. It'll start getting hot and if you don't keep an eye on temps it'll overheat.
how about this: https://jet.com/product/detail/ffedb46282f744a388d29c8035e567a1?jcmp=pla:ggl:cwin _toys_games_a3:toys_remote_control_toy_accessories _a3_other:na:PLA_345941100_23689346100_aud-155003204480la-161704661100:na:na:na:2&code=PLA15&gclid=CjwKEAiAt efDBRDTnbDnvM735xISJABlvGOvgoYU3OWX7kkRJ7tkFiOXi4f yMFPaGaMoB7SySyiqxxoCffLw_wcB

how long will the motors run if i use 1 to power 3 motors each?
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Old 01-14-2017, 01:33 AM   #4
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That battery would be fine, but I really couldn't be sure about the run time. In my 2wd buggy with a 17.5t motor I would get maybe 25-30 minutes on a 4500mah 2s battery before the low voltage cutoff kicked in. So perhaps with the three 21.5 motors you might get 10 minutes or more. Depending on how hard the motors are being pushed.
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Old 01-14-2017, 02:28 AM   #5
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Originally Posted by EbbTide View Post
That battery would be fine, but I really couldn't be sure about the run time. In my 2wd buggy with a 17.5t motor I would get maybe 25-30 minutes on a 4500mah 2s battery before the low voltage cutoff kicked in. So perhaps with the three 21.5 motors you might get 10 minutes or more. Depending on how hard the motors are being pushed.
My car is about 20 pounds with 6 motors. so like 2 LiPos will run the 6 motors.

Getting a 3s wouldnt be too much of a problem right? it wont do too much damage right? i need the motors to go as fast as possible for a few minutes. and more Voltage = more rpm
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Old 01-14-2017, 02:44 AM   #6
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Quote:
Originally Posted by masterfo View Post
My car is about 20 pounds with 6 motors. so like 2 LiPos will run the 6 motors.

Getting a 3s wouldnt be too much of a problem right? it wont do too much damage right? i need the motors to go as fast as possible for a few minutes. and more Voltage = more rpm
Well I can't guarantee anything but yes technically you can run any battery on any motor. It's just a matter of how long the motor will last. Considering yours is a low KV, I think 3 minutes on 3s might be doable. But I suggest testing it before you put it in any competition. I would invest in a temp gun to keep an eye on both ESC and motor temps as well. Anything above 170f on the motor is bad and above 150f on the heatsink of the ESC is bad.
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