JBL Flip 3 18650 mod update issues
Hey, so instead of 4 wires the device works perfectly well with a single ~2.5Ah 18650 cell. My issues is that the device cuts it off at 3.5V.
My question is, anyone have any experience with stuff like this? Do I need to include a BMS that's more laxed and figure out where to wire it (would be quite a challenge)?
I mean now a 18650 cell getting cut off at 3.5V is barely any better than a tiny 1000mAh factory default Li-Po, which also got destroyed in the process of extraction (they didn't spare the epoxy, hell they used just as much as the battery!) so I can't measure 4-wire Li-Po cutoff voltage.
Posted Sep 14, 2022, 8:52 PM UTC
94
Is it cutting off due to voltage or lack of current?
What voltage was the original pack?
It was a 3.7V Li-Po, same nominal as Li-Ion. The 18650 cell can also do 10A continous. I think it's just very conservative and the battery indicator draining from 100% to 0% is also very linear with no jumps.