flight battery

New to this group, very happy I found it! I’ve got 4 batteries same age. All 4 have inconsistent flight times. Best is 17min worst is down to 6.5min. As you can see, for these 20 flights all started at full Charge but quickly took a dump. The battery on the pad was 13min, the next 9 were all...

Howdy My brother works 60+hours per week and does not have the time to build a multi battery charger. Looking for someone willing to build and sell one. Must be at a reasonable price. Looking for at least a three bay charger. But he would be happy to charge more.