Q: What's the difference between A123 LiFe packs and LiFe PO4 packs like Hobbico's LiFeSource™ packs?

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Two big differences. First, A123's patented 'Nano' plating technology.. at a molecular level the negative plate material stands like a shag carpet rather than laying 'end-to-end'. This produces an incredible amount of surface area gain for A123's negative plate and it's why A123 can tolerate immense current loading without voltage sag. Another benefit to the nano plating technology is a huge increase in cell life. All stored energy systems consume negative plate over time.. with 100+ times thenegative plate surface area generated by any competitors plating processthe lifespan of the A123 cell is extended immensely. Next, A123's arealuminum cased cylindrical cells withwelded alloy end plates and towers like a Nicad cell. This enablesa rugged welded strap packassembly system (like Nicads) that is exceptionally robust and veryresistant tovibration andhard knocks.TheLiFeSource™ packs are built with wafer stacked'bag' prismatic cells.. like LiPoly. And, like LiPoly, they are fragile, thecell link tabs are very thinalloy stripsand the entire assembly is as a result susceptible to rough handling and vibration. Further,the prismatic cellsand their tabbing system are unable to handle anywhere near the current loading the A123 system can tolerate with ease.

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