Quote:
Originally Posted by redpoint5
One interesting thing to me is the Ego batteries have state change material to help absorb excess heat, and a fan to dissipate it. That must explain the extra expense.
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I've taken apart a number of Ego batteries. The early ones had the extra material around the cells, but later ones did not...neither had a fan inside them. They did have quite a lot more (passive) vent holes than most batteries.
Have they changed again in the past couple of years?