Just got it.
After reading the first terrible review after just getting mine shocked. Same Problem: no BT connectivity, 3.x V.
RELAX: Wake up the BMS by hooking the poles to a powersupply. I applied the Voltage according to the manual with an adjustable powersupply. I recon any other 24V supply will do. You just need it for a second… literally.
Instantly the Battery offers the Voltage it is supposed to. BT connectivity then works as well. Battery is at 42% and everything is fine.
Still: a short note in the manual about the wake up process would have been nice.
Tomorrow I‘m going to test it further. Looking forward to it.