I swap between 2 of those battery's and charge them externally not because the dna200 can't do it correct as I tried it and it does a great job but because I can charge them @ up to 5c although I only charge at 2amps because its quick but not going to hurt the life too much. Also I go though about 1 1/2 to 2 battery's a day so I don't want to slowly charge via usb at 1amp. Plus that way I can charge in fire safe bag vs while having it in hand while charging in the mod.