2.8 v is good , below 2 v isn’t wise.
Whats difference between opusc3400 and xstar.vp4 dragon plus
so… basically total mah readings are lower on the 3400? because if on test mode it dischanrge less mah….(to 3.1v) this will lead to a little less total mah
Ok thanks
The Opus BT-3400 was a special run of the BT-3100, for US seller ‘rdana’ who is an EBay seller.
The first version was 2.2 and it differed from the 3100 v.2.2 in that it had a better/quieter fan and one could toggle the backlit display on/off and the cutoff voltage was 2.8v.
The upgraded 3.1 version retains the former two, but it has a cutoff voltage of 3.1v.
I’ve had both for a while and love them.
Chris