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Okay mate thank you I'll get new controllers then.

Okay thank you. I know I'm probably being useless right now but this is the best in can do. Here is a picture of the 2 controllers iv drawn an arrow to show which wires I connected, the orange and white to the black and white. https://ibb.co/6t1k4Lj I don't have any diagrams to tell me what...

Sorry this is an escooter not ebike, these forums seem a lot more popular than scooter forums and im sure some of you are quite clued up. My scooter has 2 controllers and 2 motors. I was connecting the controllers together and connected two wires incorrectly, it made a pop and now the scooter...

Okay thank you I'll check when I get back from work

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For the last 2 days iv had a problem where the bike turns off and I can't turn it back on unless the charger is plugged in. Then I can turn it on and off again as I please until it happens again. This is obviously quite annoying as I'm not always near a plug socket. What could this be? Before...

Here are some pictures. Positive end : Negative end : Output : Output 2 : https://i.ibb.co/FbQH71Q/IMG-20201123-162215.jpg

Hey I fitted a new BMS and still have same problem so I will do the 7 tests as you originally told me to. I was reluctant at first because I really don't understand what I'm looking at with that diagram. I really don't want to bother you but is there any simpler way I can understand? Am I...

Ah okay mate thank you, my controllers say 25a on both of them so should be okay cheers

I think so my battery is 23.4ah that BMS is 40a so that will be okay? I hope so I ordered it ☺️

Thank you for the link!

Is this one better? US $13.90 27%OFF | 14S 45A 52V Lithium Li-Ion Battery Bms Protection Board Pcb With Balance Module For E-Bike Electric Bicycle https://a.aliexpress.com/_BT9ArW And I need to buy an on off switch too?

Hi I thought the controllers would switch off the battery. I can switch it off at the LCD display.

Ah right in description it just said "balance charging :no" so they must have described it incorrectly. It doesn't have an on off switch. So you think I should order that BMS?

I have attached a picture of my BMS its off a 52v 23.4ah Battery. Is it okay to replace with this BMS ...

Thanks for replying. I test from the thick black wire that attaches to the cell pack to the positive output and only get 52v its losing the volts through the bms somewhere im sure im just going to order a new one and replace it then check it again.

I see, do I need to solder BMS back on to carry out the tests? I had trouble following your instructions sorry. EDIT: i keep reading your instructions and i think i get it now. i dont have any thick black wires from the cell pack i have 2 thick black wires that attach straight to the bms from...

Oops I already removed the BMS

I have removed the BMS. Is there a specific BMS I need does it have to be 52v 26ah like my battery.

Thanks so much guys it must be a faulty BMS. I'm getting 58.3 volts when bypassing the BMS. I'll order a new one and I appreciate all the help from you all.