Recent content by robb

Fixed I think. With excellent youtube video help from here Despite peeps having never experienced a hall sensor failure it was a hall sensor. Used a hall sensor from the kit I had bought from ebay in first post. removing and replacing the faulty hall sensor in the old board. Haven't fully...

Found the answer, I think here Looking closely through a magnifying glass i one side is beveled. So will solder facing same way as original,

Hi all, have error 08 on my Bafand BBS02B. Ordered new hall sensor board off ebay Reliable Hall Sensor Board for For bafang BBS0102 HD G340 G320 Midmotor | eBay The sensors are not soldered in place and I do not see any identification to mark the left from the right leg. Does it matter which...

Thanks for quick reply. Display doesn't do anything. It wouldn't switch on and had a big black blob across the one half. I will ask the owner if he knows how that happened. He just knew i tinkered with electric bikes and asked if I could have a look.

Attempting to repair a friends Pedego electic bike. The Bigstone C500B display has gone. I have run the bike by shorting the power and data wires and then using the throttle. That all seems ok . It seems to lose power after a while on steep hill climbs and I wonder if that is because it is...

Bonnie at Xiongda sent me a free tool to open the motor. It is a simple C spanner with two screw holes which you bolt to the hub in a similar way to your tool. It came with 2 screws of the correct length. I simple connect it fairly tightly then tap it with a hammer. I have never had any problem...

Hi all, both BMS's are now functioning correctly ( I think) The problem seemed to be that the switch function in the function setting from menu had got turned on somehow. I turned it off and now both bms's are carging and discharging normally. Thanks for help Have attached screenshot

One of the two bms's seems to working ok now. just clicked on the discharge box on the menu on the front page of the android BT display. It was off. Not sure why.The discharge box on the other bms only comes on when charging and I can't "switch" it on when not charging. Balancing, and BT...

I lowered the overvoltage and pack overvoltage parameters whilst the pack was fully charged. Could it be that that could have tripped the overvoltage switches and either damaged the board or somehow switched off the battery. Going to run it without the bms to lower the voltage and then...

Bought BMS's fom JBD battery store via aliexpress https://www.aliexpress.com/store/1379203?spm=a2g0s.9042311.0.0.96154c4do55VvZ

The BMS's have been on 3 different batteries used on the 3 family bikes. All 13s. 2 failed yesterday seemingly around the same time. May be a coincidence but I altered the parameters on them the day before via an android phone to give a lower cut off for charging and higher for discharge...

Just wondering if anyone had an idea as to why I have had so many Smart BMS's that have failed usually after a couple of years use. ( 4 on 3 different 13s batteries over about 3 years.Is this usual. I am not aware of shorting or damaging them but though ok spotwelding cells together and wiring...

Meant to add. As you can see 13th block of cells is not balancing despite the bluetooth BMS measuring voltage. What are the possible reasons for this or is it a faulty bms?

Hi have a bluetooth bms to balance a 13s li-ion battery. It does not balance the last group of cells. Pictures below

Hi all, Have wired in https://www.aliexpress.com/item/13S-48V-li-ion-Smart-Bluetooth-BMS-with-20-to-60A-constant-current-54-6V-Software/32876805034.html?spm=a2g0s.9042311.0.0.2cb84c4d7XUDAR bluetooth 13s As you can see one of the group of cells is 0.1v below the rest. I have set it to static...