Hi all,

at the moment I'm working on a difficult projetct where I want to calculate the
remaining runtime of a 48V battery system.
I measure the battery voltage and the corresponding time for 2 times (e.g. U1,t1
; U2,t2).
For calculating the remaining runtime (time when the battery will be empty) I
need to know the mathematical function of battery discharging.
I'm discharging with constant power (not constant current as usually).

Is anybody out there with expierience on doing such things???

Any help is very welcome.

Juergen