thank you for Answer.
so: between positive terminal to the CL10+ I measured 0 V. I tried to "resuscitate" the battery with 36 V e-bikes battery with this result: CL10 and positive terminal- = 0V, CL - and positive terminal = 39V, positive and negative terminal = 39V, positive terminal and terminal T1 = 39V, positive terminal and T2 = 0V.
I think the problem will be on the board - I suspect, the original owner left the saw and the battery on the rain and something was "fired"on the bord after two hours without charging, I measured a voltage drop of about 5 V (about 35 V, where it was 39 V before
one positive feature that charging brought: the battery lights are no longer lit permanently, but if I press the button. After the first "animation", they turned on and lit, even if I disconnected the source