Hi,

I recently bought a second hand BT RR B1/15. Year 1999 Sn 335218AA
Logic Box 170600-106
Everything worked fine for a while.
Then, I didn't use it for a while and the battery discharged slowly.
When I used it again, I had the battery indicator showing a low battery.
So, I put it to charge and when charged, I reconnected the battery.
When switched on, the battery indicator has the 2 bottom LED's blinking an does not recognize that the battery is fully charged.
But worst of all, when lifting a charge, the movement is rough. All other movements are fully controllable with the potentiometers.
Only the lifting up is rough and doesn't get its full speed.
I don't know if the battery history is related
There are no errors in the display.
Is there some reset to do? Or any other suggestions?

Thanks in advance
Chris