Seeing if I can make a mid drive.

Them would be awesome to use in a electric golf cart. Thanks. Even a electric motorcycle. Yeah I decided in 2 years or less im buying a Maeving Rm1s motorcycle. Unless something cooler comes along.
The best part about them is that they give you options. Each "cell" is actually a pack of 2 smaller 3.7V 8ah cells in parallel. If you remove the framework they are installed in they are even more compact. The frames just allow for very simple and easy stacking and assembly with bus bars to build an easy battery pack with.
 
Looks good to me. Have you done any testing yet? I'm wander if that lawn mower motor is more a torque motor or a high speed screamer. Thanks.
No torque at all at least with the 350 watt controller, super slow acceleration and it only goes about 14mph. I just won a eBay auction for a big ass controller so we will see. This is just slapped together for testing 😄 that's not hi how I plan on the finished product. Also my freewheel crank is a unbalanced pos so if the 1000 watt controller makes a big difference I plan on purchasing a front freewheel crank set. That is if I can find one that's a decent price some of the ones I've looked at for tandem bikes and trails riding go up to and even a few above a thousand dollars. I did find one in England for 59 pounds but with the exchange rate and shipping if they even would ship to the USA would be good knows how much.
 

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I also got sidetracked making a shop heater out of a old dryer.
Likely they use an encoder and hall sensor combo to read direction and RPM. A basic controller used to maintain the throttle RPM and increase input power to maintain a range of speed would be the simplest/easiest. Who knows, there may be a couple manufacturers out there using transducer driven systems too. I haven't taken apart too many E-mowers.
This one has no hall sensors, just the 3 phase wires.
 

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