I have a leoch battery bms which my software can see via rs232 and get voltages of cells.
But I can't turn on charge or discharge mosfet in the software, error is operate fail.
The alm led is constant on and nor other led are on. It's also emitting beep every second.
Anyone know how to reset alarm condition and enable charging and discharging?

Pack voltage is 49.9v and all 15 cells are at 3.3v

 

I have a leoch battery bms which my software can see via rs232 and get voltages of cells.
But I can't turn on charge or discharge mosfet in the software, error is operate fail.
The alm led is constant on and nor other led are on. It's also emitting beep every second.
Anyone know how to reset alarm condition and enable charging and discharging?

Pack voltage is 49.9v and all 15 cells are at 3.3v

I have the same problem
Is there some solution.
Does this mean the Bms is faulty.

 

I have the same problem
Is there some solution.
Does this mean the Bms is faulty.

Some guy said its a permanent alarm condition which needs a a correct sequences of keys to disarm. But the bms is most likely ok.

 

I notice Leoch do a 48V battery comprising 16 cells of nominally 3.2V each. Is it posssible your BMS is intended for such a 16 cell battery rather than the 15 cell one you have?

 

Some guy said its a permanent alarm condition which needs a a correct sequences of keys to disarm. But the bms is most likely ok.

I'm having the exact same issue, did you manage to find the solution?

 

No solution to date

 

hi guys, the same problem here
The alm led is constant on and nor other led are on. It's also emitting beep every second.
a tryed to dessassembly the bms and remove the little battery, but the problem persist.
i think the only way is to make some button combination in the lcd panel or change the bms for an imported one
do you have any news?

 

I have a leoch battery bms which my software can see via rs232 and get voltages of cells.
But I can't turn on charge or discharge mosfet in the software, error is operate fail.
The alm led is constant on and nor other led are on. It's also emitting beep every second.
Anyone know how to reset alarm condition and enable charging and discharging?

Pack voltage is 49.9v and all 15 cells are at 3.3v

I don't have a solution for your issue (sorry). But if you don't mind, what software are you using to monitor your battery?
@Anders2020

 

Has there never been a solution to this problem? I started having this problem too. I was driving home with the leoch battery in the car. At one point it started beeping and it beeped ever since. It seems to have something to do with the G-sensor being activate (G-sensor is open). something to do with protecting the battery from stealing. I just bought the damn thing in a shop. where it was unpacked on the shelf showing all normal parameters... Until driving with that battery in the back of the car.. I downloaded BMS software (third party) to see if I can manage the battery or g-sensor over there.

 

Has there never been a solution to this problem? I started having this problem too. I was driving home with the leoch battery in the car. At one point it started beeping and it beeped ever since. It seems to have something to do with the G-sensor being activate (G-sensor is open). something to do with protecting the battery from stealing. I just bought the damn thing in a shop. where it was unpacked on the shelf showing all normal parameters... Until driving with that battery in the back of the car.. I downloaded BMS software (third party) to see if I can manage the battery or g-sensor over there.

Hi I have a similar problem with Both Huawei esm-48100b and leoch 100a.Did you finally find a solution ?

 

Hi I have a similar problem with Both Huawei esm-48100b and leoch 100a.Did you finally find a solution ?

Yes I have!! It took a while, but the shop where you bought it from has to contact Leoch. Most likely it is because of the activation of the G-sensor (anti-theft protection). That is disabling the battery with no way of fixing it yourself. You need a little piece of software that Leoch can provide you. I am not allowed to share that here because the obvious anti-theft reason.

 

Yes I have!! It took a while, but the shop where you bought it from has to contact Leoch. Most likely it is because of the activation of the G-sensor (anti-theft protection). That is disabling the battery with no way of fixing it yourself. You need a little piece of software that Leoch can provide you. I am not allowed to share that here because the obvious anti-theft reason.

hello Nicolaas, i have same problem, would you be so kind to help me? Thanks in advance