Hi,
Im getting my planes ready for a new flying season and i have charged all batterys and stuff but i have one problem,
On one of the planes when i check how much power i got in the receiver battery it shows 30 on the red field on my hitec power mate but when i disconect the battery from the airplane and check the battery again it shows around 80 and i got plenty of power in it,

I tried to switch battery on the plane but when i check the new battery connected to the receiver it shows at 30 on the red same as the other but if i disconnect it from reciever and check it i got plenty of power, i only seem to have this problem with this plane.

anyone have a suggestion how i solve this problem?