When trying to check battery voltage on my Shark Thin, (Teamgee based), I shorted the positive to the charge port housing with my probe and messed up the ESC. It beeps for a second and flashes red once but won’t do anything else. I never liked the abrupt throttle curve anyway so I’m looking for a better replacement. This is probably a 5 year old board so I’m wondering if the new Wanhdt/Lingyi/Teamgee ESC’s are any better? I’d like a plug and play option that would fit in place of the old but could do some modifications if needed. It’s a cheap board so don’t want to put a lot into it, I just use it for a “last mile” board. The pack doesn’t have much range so before this happened I was toying with the idea of replacing the LiPo pack with 18650s. If there is a 12S ESC that would fit I could upgrade from the 10S LiPo. Or just scrap the whole idea and get a better board but I like the thin profile and light weight (17lbs).
I saw some Puaida ESC’s but had never heard of them and assumed they were just another Wanhdt/Lingyi based unit.
Their P6D board for 500 is interesting, if it has the new ESC, double the battery I have now and only 2lbs heavier, not sure what cells they use though.
Ive got about a thousand miles on puaida hub motors, In florida flatlands, but towing my dog in her chariot, about a 260lb load.
My first esc was likely cooked as i did not expose the small heatsink to exterior airflow for 400 miles +, and when I did, it got hot enough to nearly burn my fingertips. I added even more heatsink to it since, and its deep aluminum fins still get quite hot with the ebay lingyi.
I have no experience with Puaida premades, but do have some new 90mm motor sleeves which passed through customs a few days ago.
I think you’re onto something. I tested the pack voltage where it’s soldered to the ESC, 38V, then I pressed the power button, got the beep and the light flash, but the voltage dropped and then slowly started to climb back up. So I guess the BMS has cut the main power feed but allows a trickle charge that slowly powers up the caps in the ESC. That’s why I get a temporary beep and flash from the power button after it’s been sitting but if I push it again too soon nothing happens. I’ll have to peel back the grip tape to get into the battery compartment and hook up a different battery to check.
You called it, I bypassed the BMS and the board turned on. Now I need to decided what I want to do, it needs a new pack so that would also solve the BMS issue, and I’ve heard the newer Lingyi ESC’s are smoother than the old ones so I could swap that out as well. I’ll have to see what a new 10S2P 18650 pack would cost me to replace the LiPo pack which has some swollen cells and not much capacity. I don’t want to replace it with another LiPo pack since they don’t seem to last and frankly they make me a bit nervous.