And I'd rather go get the PowerEx 2700's
Much more juice with an almost guranteeed performance... I have 20 of these batteries
Try the New SOny cycle energy eneloop batterries.. cheap ($14 pack of 4) and performance same as sanyo's
my older 2100mah batts read as low as 1500mah. Uniross 2500 reads abt 2200+. Sanyo 2700 reads 2500++
great for hobbyist. for pros, they probably need mostly powerex types. or then again, they may use dunno what quantum battery pack
the other off brands are best used for wireless mouse, remote controls, cordless phone.. etc etc (seriously, i use funny brands for these devices. no point buying good one for anyhow usage)
as for GP, i used quite a number and i find that they don't last at all. their charge capacity drops quite fast.
The set of 4 that I bought for $5.50 (1600ma) are pretty good so far. I quick charged them, and then took over 100 shots before they went flat.
I was taking shots like crazy, even 6 rapid fires, and I didnt have to wait for recharge. So far so good. I just recharged them, now I will wait for a week or so before using them again. See how well they retain their charge when not in use.