i replaced my 2 old powerbox lipos in my 3.03m christen eagle wit 2 X powerpak 2.5X Pro lipos.
I fully charged them the evening before i went flying and the morning before i went flying i plugged them in once again until the leds changed from red to green.
They are connected with a powerbox competition srs.
I also did build in a powerbox smokepump wich takes its current from the powerbox.
After the first flight (8min) i saw that the voltage shown on the powerbox was arround 7.8V for the 2 lipos.
In that first flight i used the smokepump for the first time ever.
For the second flight i didn't use the smokepump as i was affraid why the lipos were yet at 7.8V
After the second flight 1 lipo was at 7.6V and the other on 7.4V.
A third time a didn't dare to fly.
Is decrease in Voltage normal?Does the pump take so much in standby?