Bl Crt.5

[BrianG]

I use Maxamps 2s 5Ah packs on a MM 4600 system and they work fine. I get around 30-35 minutes of runtime so that equates to 8.57A average draw and around 50A burst current. I don't know how the GTB system compares to the MM system so it's hard to say if you'll get the same results.