Electric bike: diagnosis of a lithium-ion battery 24V

[Christophe]

Yesterday I made the conversion to lithium-lead, 2 batteries in parallel and solar charge of lead. For the moment, it works.

Here is the detailed subject: converting / converting an HS lithium battery electric bike into a solar lithium lead bike

[leptitdu33]

Hello Christophe (and the others) I am new to the forum so if i make some mistakes, please don't mind it. So I bring out this very old post. I have exactly the same battery (the same bike too) and especially exactly the same problem. I would like to know how this failure was resolved because I do not see anything concrete in the answers provided.
Was it?
A defective element?
the BMS?
The thermo fuse?
Did you solve this problem and how?
Thank you to you and to all who have a real solution.
The little one33