happy_chappy
100 µW
- Joined
- Aug 17, 2018
- Messages
- 7
Hi, wondering if anyone can help fix this issue as my bike is my only form of transport!
I bought a 52v 750W TZDS2, VLDC 5 with throttle and 52v 13.6Ah Shark LG Cell Lithium Ion Battery Pack from recycles-ebike.
I've rode the system for just 30 miles on the charge that battery came with and it did the job well.
The throttle never worked so I just assumed it was not supposed to. I had initially plugged it into the middle port and it showed an error so I had then attached it to the left port.
Unfortunatley after fully charging the battery the motor stopped working...
If I apply pressure to the pedal with the brakes on, the motor jerks a bit like it's trying but I get no assistance. This is on any power level and from 10-32 A.. Previously you could hear a loud whirring sound as you pedalled and the motor kicked in, now the sound is nothing like before, it's almost silent, and there is no strength to the assistance. This is a video of me gently turning the pedals with the brakes slightly on to create resistance: https://vimeo.com/user88520934/review/285459744/58c8faf305
The initial respose from the vendor was suggesting the blue gear may have been chipped but when I told them this happened after charging the battery, this is the response I got:
Tongsheng misprogrammed some 52v motors, and if the voltage is over 55-56 volts or so, they act similar. Fully charged 52v battery is 58.8. So, if that was the problem, it would mean the battery wasn't fully charged first time you put 30 miles on it, and then you fully charged the battery to 58v, and now it doesn't work.
Sounds like we just need to reprogram it.
When it runs with the throttle, does it try to add in an extra jolt/jerk every so often, but otherwise stays barely spinning?
Take a look at the video (link below)... I have strong by step instructions for this... Do you feel comfortable reprogramming it yourself as you see in the video?
https://drive.google.com/file/d/10OLNCz4eGUjbEXojD1PfjVeCQTPgOnVe/view?usp=drivesdk
Unfortunatley I don't have the cable required (STlinkV2 ?) and can't source it for the UK, and they don't have one in stock. They are, however, sending me a new controller (free of charge) from China. I'm waiting on their response as to how it will help and not fail again in the future.
So I'll be a couple of weeks still without transport, so I was wondering if anyone has any ideas on alternative fixes or where I can get the cable from? I was thinking if I run the battery down below the 55 volts it may work, but it's not a permanent solution.
I bought a 52v 750W TZDS2, VLDC 5 with throttle and 52v 13.6Ah Shark LG Cell Lithium Ion Battery Pack from recycles-ebike.
I've rode the system for just 30 miles on the charge that battery came with and it did the job well.
The throttle never worked so I just assumed it was not supposed to. I had initially plugged it into the middle port and it showed an error so I had then attached it to the left port.
Unfortunatley after fully charging the battery the motor stopped working...
If I apply pressure to the pedal with the brakes on, the motor jerks a bit like it's trying but I get no assistance. This is on any power level and from 10-32 A.. Previously you could hear a loud whirring sound as you pedalled and the motor kicked in, now the sound is nothing like before, it's almost silent, and there is no strength to the assistance. This is a video of me gently turning the pedals with the brakes slightly on to create resistance: https://vimeo.com/user88520934/review/285459744/58c8faf305
The initial respose from the vendor was suggesting the blue gear may have been chipped but when I told them this happened after charging the battery, this is the response I got:
Tongsheng misprogrammed some 52v motors, and if the voltage is over 55-56 volts or so, they act similar. Fully charged 52v battery is 58.8. So, if that was the problem, it would mean the battery wasn't fully charged first time you put 30 miles on it, and then you fully charged the battery to 58v, and now it doesn't work.
Sounds like we just need to reprogram it.
When it runs with the throttle, does it try to add in an extra jolt/jerk every so often, but otherwise stays barely spinning?
Take a look at the video (link below)... I have strong by step instructions for this... Do you feel comfortable reprogramming it yourself as you see in the video?
https://drive.google.com/file/d/10OLNCz4eGUjbEXojD1PfjVeCQTPgOnVe/view?usp=drivesdk
Unfortunatley I don't have the cable required (STlinkV2 ?) and can't source it for the UK, and they don't have one in stock. They are, however, sending me a new controller (free of charge) from China. I'm waiting on their response as to how it will help and not fail again in the future.
So I'll be a couple of weeks still without transport, so I was wondering if anyone has any ideas on alternative fixes or where I can get the cable from? I was thinking if I run the battery down below the 55 volts it may work, but it's not a permanent solution.