Hyperion G3 vs. ThunderPower ProPower 45C

[Marvin]

I'm sorry, that's not what I meant by scientific. I meant measureable and easily comparable. Quality tends to be a normative factor, and I meant when comparing cells of the same type (ie Lipo and Lipo), as I understand that A123 cells are of a different construction to Lipos, and therefore there will be something in their chemistry that allows a greater cycle life.

I was saying that not many of us on here truly knows what goes into the cells that Hyperion or Thunderpower, or anyone else uses. Therefore, we (the consumer) has only four main identifiers of cycle life:

1. Perceived cell quality
2. Cell chemistry, that we can actually tell - at probably the most basic level - so whether it is LiPo, LiFe, LiFePo4 etc.
3. Testing, and comparing performance over a long period of many cycles.
4. IR

I wasn't trying to say that IR was the ONLY way of predicting life cycle, but in the absence of real knowledge about both cells, and the way in which they are constructed, IR helps back the other factors up (quality, and what we know of the cell chemistry).