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Nice build and healthy sized battery pack. That Kelly controller seems under-sized for the motor (QS 273 50H or 60H?) you are running...

I'm also building a bike with this controller for someone and am having the same issue. Throttle is OK, but the PAS is way too...

A bigger controller will heat up the motor quicker; but it will still work. You need to find the right phase/hall combo; regardless of...

Usually, a motor with a higher watt rating will have wider magnets/wider stator that can accommodate more copper wire; and take more...

Thanks! 70 amps continuous at 72v so at nominal voltage it's pulling ~5000w. The motor can do that all day without getting too hot. Peak...

The holes were cut for the cable harness to fit under the seat: These connectors seem pretty nice; much better than most I've used on...

Looks good and mostly stock; I definitely like a "sleeper" build. What are the electric specs?

Super nice build, I think you are going to end up loving the VESC ecosystem. Benjamin Vedder and all the too-numerous-to-mention...

After a couple hours planning how/where to mount the controller; I've settled on this; which should be good for airflow (but poor crash...

The rubber bob for the seat have arrived and installed nicely; the seat seems more secure now on the bike. I only added the missing ones...

I think I payed around $30; the mower didn't work because half of the lead acid bricks were dead.

I found a nice used 48V lawnmower that was designed to work on lead acid. I think the lead acid was 10ah bricks. I am now using it on an...

A new seasons of riding is here and ... I'm still not ready (soon though). The upgrades and fixes are still underway. I'm doing a couple...

I've never built a pack without spacers, so I cannot comment on the OP's question. But it seems to me that heating isn't the primary...

I believe I may have found a reason/remedy for this temp sensor issue. I just stumbled on this Tradeoffs for NTC Thermistors regarding...