receiver battery charging
I am flying a nitro plane with a 850ma 2c lipo receiver battery. There are 4 standard servos and a voltage regulator with a set output of 5.7 volts. There is also a battery check port on the side of the plane which I can connect to a volt meter (the one shown or a std multimeter). The plane is new to me.
When I check the battery after about five 10 min flights the reading is 7.8 volts at the balance plug and the same at the volt meter connection. I also have an old "Voltwatch" monitor attached to the receiver and the fully charged light ( far right one) is lit!. I am assuming that this monitor is for 4 AA cell packs and should show a warning at 4.8 volts.
Since I can still recharge the lipo at > or =3.3v /cell or 6.6 volts and the regulator is set to put out 5.7 volts I am wondering at what voltage I should recharge the lipo.