For $299 I can sure buy a lot of lithium ion batteries. There are already many such products out there that are very cheap. 290w/h is 58000 mah at 5v. I can buy a 11,000 mah pack for 29.99 on Amazon and surprise it weighs 1/4 the weight. Even if I bought 5 of them to equal the energy capacity it would be 1/2 the cost. (But it is not a REACTOR) There really is nothing novel at all about this product, and it is overpri…
The bigger battery pack I found on amazon with decent reviews was 32000mAh for $119.99 (http://www.amazon.com/dp/B00DN0KBXU).
The trontium still cost more than two of those but the difference is shrinking.