Originally posted by y0chang this pretty much goes with what I see on my wasabis, they get 75 percent of the shots but are 1/3 as cheap, like most things you get what you pay for. I got one pentax one and 2 spare wasabis. I did get a weird flickering on my back camera screen, I wonder if that was an overcharged with the quick battery charger. The thing is that almost all li-ion batteries are chinese manufacturer now. Hell nikon been making em in china since at least the d40 era...
I use one Promaster and one Wasabi battery myself (in the k-r). Both of these batteries last about the same amount of time. I haven't had a Pentax battery, but I'm sure they are better.
On rare occassions, I've had my back screen flicker or go out - turning the camera off & on solved it. Dunno if it was the batteries or what.
I thought Wasabi would be better than the cheaper Chinese batteries on eBay, but I'm told by the guy that tests them that they aren't. Oh well, I sill prefer the Wasabi - atleast they have a name on them and hopefully they have some level of quality control because of that.
A sidenote: I use my Pentax recharger for both of these batteries.
Last edited by Michael Piziak; 06-29-2014 at 07:39 PM.