Wasabi Power Battery (2-Pack) and Charger for Pentax D-LI90 and Pentax 645D, 645Z, K-01, K-3, K-5, K-5 II, K-5 IIs, K-7

With the switch to proprietary batteries, and the ever increasing needs for power, spare batteries are a mandatory accessory for a new camera. As I tend to place a heavy demand on my camera when shooting on location, my ideal needs are one battery in the camera, one in my pocket and one on the charger. As I am also using a battery grip, that translates out to a minimum of an extra 3 batteries.The kit is in the middle of the price range approximately $12 / battery. Individual batteries have been as low as $7.20 to as high as $19.95, with the Pentax original at $59.95 (and out of stock/backorder (10 days) as of this posting 7/13/2013. However the kit includes an additional battery charger, always a welcome addition when purchasing "generic" or third party batteries.*** Edited 9/2015***And the award for the first D-LI90 battery to flame out goes to: (in an upset) Wasabi Power. I must admit I was surprised as I would have expected one of the other generics to go first. In fairness, the battery did see heavy use, and lasted almost 2 years under demanding conditions. Time to see if that 3-year manufacturer warranty is worth the paper it was printed on.Follow-up 9/2015With very prompt attention from Wasabi Power, my camera's two new replacements are on their way. Just had to cover the small charge for shipping (but easily less that cost of replacement batteries (and any shipping). So camera will be back at full power and ready to go, Pleasure dealing with a company that supports its products,***** end of editing ****In comparison to the OEM, the battery specs are nearly identical. The OEM from Pentax is manufactured for Pentax/Ricoh Imaging Company LTD (China manufacturing) 7.2 v (voltage) 1860 mAh (milliampere-hour) 14Wh (watt-hour). The replacement batteries are listed as Premium Cells from Japan manufactured and sold as Wasabi Power (China manufacturing) 7.2v (voltage) 2300 mAh (milliampere-hour) 16.6Wh (watt-hour).The OEM battery charger shows Pentax (manufactured for the Hoya Corporation - the prior owner of the Pentax brand name before its sale to Ricoh. The date stamp on mine shows it was made during the transition period - 08/2012 ) Model D-BC90 (China manufacturing) input 100 ~ 240 v 50-60 Hz, output 8.4v 400mAh. The Pentax charger utilizes a long plug in cord, and shows a red completed charging indicator (led) and utilizes a 3 prong connection (positive/negative/ground) for making contact with the battery. Instructions are contained in a separate manual with cautions in Japanese (?) or Chinese printed on the back with an odd stray French (Fabrique en Chine - translation Made in China) phrase on it.In comparison the Wasabi Power charger (China manufacturing) input 100 ~ 240 v 50-60 Hz, output 8.4 v 500mAh. The Wasabi charger has a built in swing out plug with a solid "click" in place when turning, shows red (charging) / green (charged) indicator lights (led), and utilizes a 2 prong connection (positive/negative) for making contact with the battery. As a bonus it has charging instructions printed in English on the back of the unit and ships with additional car adaptor and European plug in adaptors.Based on the data, the Wasabi Power replacement battery is nearly identical to the OEM. It should offer no compatibility issues, while providing for longer usage. The battery charger is compatible with OEM batteries, and other D-LI90 batteries from other manufacturers. It appears to charge them in a nearly identical time, based on battery usage and starting from a "non-charged" state.Thus far my camera (Pentax K5 - II) has not noticed any difference between the OEM and the Wasabi Power battery. Nor have I seen any apparent differences in performance or duration by either the battery or the charger. By the same token as of this posting, I've not yet been able to work either battery to "depletion" while using the camera. I may update this review after getting an opportunity to do that in near future, if I notice any significant departures from the OEM battery.On the other hand, the Wasabi Power charger offers a far greater convenience in use and while traveling. It is one less cord I need to travel with, takes up a smaller space in my camera bag, easily plugs into any standard US/Canada power outlet, and works well with the Pentax and other Power2000 / Photo Xit batteries. In contrast, while the Pentax equipment will charge the generic batteries, the Pentax charger does not seem to "grip" them as well. I has had the generic battery pop out of the charger if jostled while the Pentax OEM is locked in to the point of needing a slight effort to remove. The Pentax charger is also larger and wider than the Wasabi Power charger, requiring a flat surface as opposed to connecting to a wall outlet.Recommendation:If you have money to burn and time on your hands, go with the OEM from Pentax.If you want an exact "generic" match to the OEM for at an price point and the convenience of an extra charger, the Wasabi kit is an ideal choice.If you just want compatible "generic" D-LI90 batteries, or would prefer other kit combinations, you can find them at lower price points per battery. HOWEVER, do be alert for potential differences in battery voltage. While the difference between 7.2 v and 7.4 v "should be" within camera tolerances (a quick review of the K5 - II manual did not indicate any specific warnings on battery voltage), it may make a differences over time and batteries not recharging to full capacity if used in a different chargers.

These batteries are as good as the original Pentax battery that came with my camera. Two batteries and a charger for half the price of one battery alone from Pentax. I have four of them now and I’ve been very satisfied. They hold their charge and recharge themselves in a reasonable amount of time. Five stars. I highly recommend.

So far, so good. I have not used the charger, just the 2 batteries. The batteries work just fine, though don't last as long per-charge as a genuine Pentax battery. Not really an issue for me, though, as I keep the Pentax battery inside my K-3 II and use the Wasabi in the battery grip. The batteries charge without issue in the Pentax charger and don't get particularly warm. I'll update this review should anything of note occur.5/23/2018 update - one month in, and I'm still satisfied with these batteries. I get 700+ shots per charge, using my K-3 II + manual focus long-tele lenses. If I were using a modern tele like the DFA 150-450 I'm sure the juice required for AF would deplete the batteries more quickly.7/21/2018 update - three months in, "so far, so good".

I like to have multiple batteries for each of my Pentax cameras. I got this Wasabi 2 battery pack for my K3. The charger itself is small enough and has a built-in flip outlet plug that I can just throw it into my camera bag and it's always there when I need it. The two batteries work perfectly with my K3 and have as long, if not slightly longer, life as the original Pentax battery that came with the K3 and is itself also still going strong.

This is the second Wasabi battery and charger package I've purchased. One of the batteries from the first one went for an inadvertent swim at Waimea Bay on Oahu and was never recovered. I didn't really need the whole package but it's very reasonably priced and now I can keep two spares in the camera kit and one on the charger at home. I keep the extra AC charger in the kit and put the extra car charger in the nice car in case anyone ever lets me drive it. It could happen, may as well be prepared.The batteries have been great--no problems at all. In fact, they seem to give me more shots per charge than the original Pentax batteries. Likewise the chargers; nothing has broken or quit working.So I recommend it. You get two batteries and the chargers for about half what one Pentax battery costs, and they work fine.

I own this set twice. The batteries themselves are at least equivalent to the original batteries for m Pentax k-5 camera, and possibly a little more powerful. The charger is approximately twice as fast as the Pentax AC charger, too, charging a battery in around 90 minutes. But I suspect it does not give quite as deep of a charge and therefore may not maintain the battery life quite as well as the original charger. Also it is only as fast as 90 minutes on AC power. When I use it with the included car (lighter socket) plug it takes longer, although that is probably more about the voltage available from the vehicle.The reason for 4 stars instead of 5 is the charge indicator light. It works, passing through three states (red, orange, green) to indicate progress. But it fails as a true progress indicator because the middle (orange) state only shows for a very brief time just before green. From what I have seen so far, it's something like 85 minutes of red, less than a minute of orange, and then green. Consequently the only way to have any idea of its progress is to take note of the time when you plug it in, and hope.

It arrive a day early that’s awesome customer oriented service. Everything functions properly. These batteries have greater capacity than the original Pentax battery. Pentax battery 1860mAh vs Wasabi 2300mAh. It even comes with12 volt coiled cord for charging on the go in your car. I used it today in my car and worked great.

Just what I needed