They are both 100watt chargers, but the Triton costs another $70. The Ultra disch at up to 5a, Triton only 3a. Triton has a NiMh top off feature I don't see mentioned for the Ultra, but thats for NiMh, NiCds, not lipo.

I don't see a whole lot that the extra $70 buys you. They are both goos chargers, but the Dynamite just seems to be a better deal.