Now I popped in another battery and took out my mxjo 18650 since they where both dead. haven't had a vape since early today and it's about full but a little under but when I put In my Samsung 25r the battery indicater blinked on the first bar a few times then went right to the second. same thing happened with my mxjo is commen as well?
Not sure what you are asking here. The charger does a 6 second low voltage test charge to determine the battery voltage. Then it decides if the battery needs to be charged. It won't always start with one blinking light depending on the voltage of the battery you are putting in. I suppose it will depend on when the low voltage cutoff kicks in for your mod.
From memory, I think the first light blinking means it's around 3.4v or below.
It goes to the second light blinking around 3.7 and 4.0 for the third light blinking showing all 3 solid lights when charging is finished.
I might be wrong on these voltages, I am just trying to pull them from memory as I can't find any definitive answers on line.