BS60 Battery Station for Matrice 300BS60 Battery Station for M300 RTK The BS60 battery station manages up to 8 flight batteries and 4 remote controller batteries. It features fast charging that will allow you to conduct your missions without running out of power. How long does it take to fully charge two TB60 Intelligent Flight Batteries? With 220V power supply: It takes about 60 minutes to fully charge two TB60 Intelligent Flight Batteries; and about 30 minutes to charge them from 20%