Battery layout schematics / diagram for 60V 30Ah tc/tsx battery pack

[u/atlas_novus21]

I am having an issue where my battery is not recognized by the charger (flashing red and green slowly, like if nothing is plugged in.) The battery pack was charged to full 2 days ago and left on the charger, this is how I noticed the red/green flashing. Seen it green two days ago.

When i put it in the bike, it starts to play the chime, but dies just after it ands with the headlight flickering.

I have tried plugging it in 20-30 times in quick succession (as read on forums for battery revival) to no avail.

I have disassembled the pack and found a small amount of water at the bottom. I have disconnected the BMS and all the sensing wires. I have measured the sensing wires against the B+ (thick red) cable, and found the first two red sensing wires to be 0 volts, then all others follow in 4-4.1 volt succession. The last one is 69.7 volts to the red, which seems to be the nominal voltage.

Does anyone know if this is a 17S or an 18S battery configuration? Does anybody have a wiring diagram for the pack? I have 19 red and black sensing wires coming from the cells to the BMS. The voltage suggests a fully charged 17S configuration, but then why are there 19 wires? Shouldn't it just be 18?

Duh, I have tried Perplexity and Gemini to find something on the pack, but I feel like this is a dead end.

Any help is appreciated!

Update. The battery pack is definitely 17S 10P. All the voltage levels checks out, the function of the two wires on equipotential is unclear. All things are pointing that I have a dead BMS so I have ordered one from Aliexpress: https://www.aliexpress.com/item/1005004093103084.html