Don`t even think about the charger, sooner or lather you will want 8 cell packs for your Aqua jet and you would be selling your Intellipeak or your Dynamite to buy the Super Brain 977. And The charge rate of those chargers are fixed at 3.5A and at 1A or 4A. The 977 charge rate is from 0.2A to 5.0A in 0.1 increments so you can charge also`AA or AAA Batteries and you can charge your IB3800 packs in less time and in a better way than those chargers. Also The Super brain 977 is very use friendly, i`m very happy with mine even though i can only put 7 cell packs on my Twin storm.
Remember, sometimes the cheaper can get more expensive.