I've just bought some "Good to Go" batteries from an online shop. They're the same type as Eneloop/Hybrio but a lot cheaper. Reviews seem positive.
7dayshop?
I've done some testing on those cells:-
Voltage off the charger after an overnight charge:-
Eneloop 1 1.477v
Eneloop 2 1.484v
7DayShop 1 1.469v
7DayShop 2 1.469v
Voltage after 1hr rest (% in brackets):-
Eneloop 1 1.455v (98.5%).
Eneloop 2 1.463v (98.5%).
7DayShop 1 1.447v (98.5%).
7DayShop 2 1.448v (98.5%).
Run Time on a Quark AA2 on Max (initial amp draw in brackets):-
Eneloops 1h10m (1.8A).
7DayShops 1h5m (2.0A).
Voltage after run (voltage after 1 hr rest after discharge in brackets):-
Eneloop 1 0.93v (1.183v).
Eneloop 2 0.97v (1.187v).
7DayShop1 0.95v (1.101v).
7DayShop2 0.96v (1.127v).
So, not bad but not up their with the Eneloops. Some have mentioned that they look a lot like Rayovac Hybrios and looking at the perfomance I'd say that seems feasible.
They're certainly good enough to rescue my Eneloops from my kids toys and I'd say they ARE worth the £3.69 I paid for each pack (and they come with a case). I'm glad I bought them.