I'm using MAX force 5200mah 30C. I play 5~6 times for each month.
Each time I will repeat to charge the battery 3~4 times. Using 4.0 T bushless
to play 6.5 minutes and remain arround 3.78V . 4 month ago, the battery
still in good performance. Now, the battery cost 260 人仔 at main land.
This battery was found common for playing the boat (deep V) etc.