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Question: This product is listed at $26--I found replacement Pentax batteries for as much as $46. Does this mean the quality for these are a quarter as good?
Document: For less than half the price of an original replacement battery, you get two batteries with higher capacity, a compact quick charger with fold-away wall plug (US prongs), a European plug adapter and a cigarette-lighter plug/cable to recharge in the car! Good quality construction, works great in my camera!
After the first charge the Wasabi lasted for 25 pictures and upon recharging it lasted for 95 pictures. In other words, this item is so much cheaper than Pentax brand because it delivers so much less.I do not recommend this battery others.addendum Aug 2013. Since I had the batteries I used them and found that with use (repeated rechargings) the longevity of the batteries increased. So now, not only can I recommend the batteries, I've bought some for another brand of camera.
The best thing about the Wasabi charger kit is the charger has the prongs for the wall outlet directly on the charger itself, which fold out when needed. The stock Pentax charger had a big long cord which made packing it into a slim case impossible. Excellent product, quality build, very happy with the purchase.I bought this pack before a road trip through the southwest.
I've ordered several Wasabi battery bundles in the past year, and have always been completely satisfied with the quality of the product, and considering the value offered - I don't think I'll ever bother with an OEM battery. The included car and european plug adapters are nice extras, even if I never use them - nice to know I have them.
Very good quality batteries and charger! Can be used anywhere in the world! These batteries last longer than the OEM that came with the camera. Thanks!
My charger had been lost from my suitcase while on vacation! Locally in Chicago no store had a replacement available, had a brain wave to purchase via Amazon.com  & have it shipped to the hotel in good time too, with 2 extra batteries.....delighted.As a freelance photographer being in such a photogenic city was essential to me, so Thanks to everyone  in getting me out of a tight spot.
I feel much power with these batteries than my oem pentax one. I use one in body and one in grip, I can shoot about 600 pics with just one battery.
Needed a backup battery for my Pentax. Found this deal for two batteries and a charger to boot. Quick response too.
I don't mind mentioning that the cost of 2 batteries and a charger is about $14.00 less than a Single Pentax battery. Why manufacturers over charge and cut their own throats is beyond me. Hopefully I will have the same results as the F550 replacement batteries which I recommend if you need that type. I will also update this review in the future.
This brings my total number of batteries for my camera to 5, and I only rarely used the third one in the first place, but the charger is *so* much better than the stock pentax one that it was worth the extra purchase I guess. And the K3 uses the same batteries, so if I add that as a second body, I'll have 3 batteries for each, so that works.
Answer: No, they definitely are not. They have been, so far, fantastic, and at least as good as the Pentax batteries that came with my K-5II