1. Don't use just one word in the topic title. It must contain battery part number, chip model and short description of the issue.
2. Use NLBA screenshot button. The screenshot that you posted is blurred and unreadable.
sorry, this is my first post so I didn't know exactly about it.
The problem is self explanatory.
You must balance the cells.
What is not clear to you?
PS
Your topic title was edited so check how it should look like for any future topics you post.
What's the best way to do it, any tips?
Connect Regulated Power Supply to Cell 2 using crocodiles or solder the wires. Set Voltage trimmer to 3.7v, Current trimmer to 0.5a. Wait an hour until Cell 2 will be charged to same level like Cell 3. Then repeat the same method for Cell 1.
and to charge each cell do I have to interfere with the batteries? the regulated power supply does not show me information that the battery is consuming current
Do I have to disassemble the batteries to charge each cell separately? I have a laboratory power supply, but when the battery is connected, it does not show information that it is charging
Do I have to disassemble the batteries to charge each cell separately?
No. Its enough to access the pcb joint points to solder two wires or connect a crocodiles.
how to find these connectors? I have PD HP840G3 batteries
Bring the battery to workshop so qualified personnel could fix it for you.


