HKJ
Flashaholic
Energy appears to be pretty good on tenavolts, watt hrs seems to be somewhere between standard and high cap eneloops. In some applications, such as single cell lights, tenavolts sometimes run considerably longer than high cap eneloops, I am guessing because that their higher Voltage results in less losses in the boost circuit?
The best LiIon 1.5V cells are very close to a break even, but they requires a special brand specific charger and that is a big issue.
The higher output voltage has some advantage, especially with a boost converter.