I'm Jeff Chaskin, at Fusion Power. I'll go point by point to explain our science.
We sell completely constructed packs we call Fusion Power Modules that are unique for the following reasons:
Our patent pending heat-sink battery bars make our packs run 'cooler at the core'. Standard battery pack construction only allows the battery to radiate heat off the outside cases of the cells. Heat at the center (core) of the cell must conduct all the way through the cell to the outside case. Our heat-sink bar allows the interior of the cell to radiate core heat directly to the outside air. When the car moves, we not only dissipate heat through radiation but we also promote convection through turbulance at the fins.
The 300% number - We have measured an increase in core heat dissipation exceeding 300% at a vehicle speed of 4 MPH. It is the increase in Joules we are measuring.
Cooler cells mean lower internal resistance. Lower internal resistance translates to higher voltage (Ohm's Law E=IR). So.... if we keep the core temperature lower we produce higher voltages longer into the run. This translates into 'punchier' packs. I have racers that swear these packs maintain off-the-line punch much farther into a run, and never really flatten out.
Hand soldering with a big hot iron generates Thermal Inertia (caps for emphasis) which damages the battery. It's not a matter of if, just how much. The most common area damaged is the plastic vent under the positive terminal. Thermal damage can show up later in the form of packs becoming un-matched sooner, sudden dumping, and blow-outs. See our Tech stuff at the website. We use a patent pending process which utilizes high frequency skin-effect to induce heat into the bar and solders perfectly and very rapidly.
A more perfect metalurgical bond between the bars/terminal and the cell cap means lower internal resistance as a pack. It does no good to have great voltage/low IR cells if the pack connections introduce resistance into the circuit.
We also engineered the composition of our metals and platings for the optimum in conductivity, solderability and anti-oxidation properties.
We do also sell the bars for those who wish to build or re-build their own packs, or use batteries other than the GP3300's we use. You don't get our soldering process however. And yes they seem expensive, but aren't expensive matched cells worth the extra couple dollars for a better assembly and termination kit?
We believe that all of the above contributes to a state-of-the art power pack design that is unequalled. Go to our website at www.fusionbatteries.com
and check it out. Look at our Power Module tell me you don't want to drop one of these puppies into your battery tray.