Wasabi Power Battery (2-Pack) and Charger for Nikon EN-EL15 and Nikon D500, D600, D610, D750, D780, D800, D800E, D810, D810A, D850, D7000, D7100, D7200, D7500, Z5, Z6, Z6II, Z7, Z7II, 1 V1

This is the first time I've purchased Wasabi batteries. An 'aftermarket' EN-EL15 battery is very hard to find and the one I had previously purchased was definitely NOT decoded (though the ebay seller claimed they were) - my D7000 could not ID the battery or display any information, including state of charge. Needless to say, I didn't have particularly high hopes for the Wasabi batteries but reviews were uniformly good and the price for two was less than half that for the over-priced genuine Nikon battery so I decided to give them a try.The batteries and charger arrived quickly and both charged in the Nikon charger just like the original. I installed one in the D7000 and one in the MD-11 grip; both were immediately recognized by the D7000 with accurate SOC and use information. I have no useful information on battery life yet - it takes several discharge/charge cycles for li-ion batteries to reach their design performance - but given my experiences so far, I expect them to perform just like the original, especially because the Wasabi cells are made in Japan and are quite likely identical to those in the OEM battery.One note - the Wasabi charger is smaller, but not nearly as robust as the Nikon and the small battery retention tabs look susceptible to breakage. I plan to keep the Wasabi charger in the car and use it as a back-up, with the included car charger cord, during road trips.***********************Three hours later. . .***********************Oops -- found an issue.I have an aftermarket "no-name" grip that came with a large li-ion battery pack in addition to the regular EN-EL15 and AA battery holders. I don't want to bring another battery charger (for the grip pack) on a long international trip, so I replaced it with one of the Wasabi EN-EL15 batterries. If the D7000 is set to use the camera battery first, the camera properly recognizes both batteries. If I set it to use the MD11 first, the Wasabi battery is recognized when I first turn the camera on and when a turn it off and back on after a short time. However, if the camera is off for more than about 10 minutes, turning it on causes the battery display to flash as if the battery is fully discharged and the camera will not power up. Pulling the battery holder out of the grip and back in solves the problem, at least until the camera is turned off again.Certainly not a serious problem, but definitely curious behavior! I'm not going to change my 5-star rating as this issue could just as easily be caused by the aftermarket grip as the Wasabi battery. I'll update this review if I can pin down the cause.

I have been waiting for a replacement battery for my Nikon D800 for a while now because the OEM is $65 and in my opinion is not worth it, and finally it came out. I actually waited a few days to see if anyone actually would purchase it and write a review before I buy it, but no one did. So I took a chance and buy them before the the price goes up. I got the 2 of the Wasabi from Blue-Nook with the charger kit for better pricing. I guess I'll be the 1st to review it:Pro: So far the battery is working well when inserted into my Nikon D800. The camera does detect the % of battery remain, and can be charge with the original Nikon charger. I also tried to charge the OEM battery with the Wasabi charger and had no problem so far. I have not had any issue using the battery with the camera itself. The camera detects and uses the battery like how it always does. Not much to comment on that.Con: I do have the Meike grip. When using this battery with the grip, for some reasons, after turning the camera off for 5-10 mins and turn it back on, the grip couldn't detect the battery in the tray. So I have to take out the battery tray from the grip, and simply reinserted it. It's not too much trouble, but it does get annoying. I tried using the OEM battery with the grip and this issue does not occur. But the problem does not occur when I inserted the battery into the camera itself. So there might be a communication problem between the Meike grip and the battery. Let me know if anyone else encounters this issue and how I can fix it, if possible.Overall: I am happy with the battery because I don't use the grip that often. I got TWO batteries for a cheaper price than ONE original one. I'll update my review if I see any other issue.

They don’t seem to last as long as the Nikon batteries but they’re ok. Good value

Purchased this kit after all of the positive reviews. I should have looked closer at the negative reviews. I charged both batteries up and both showed fully charged. When I put the first one in it read only one bar on the battery meter and died almost immediately. The second one read two bars and crapped out after five photos. Unfortunately I'm using these Christmas morning, and as a result have lost a lot of great shots of my kids that I'll never get back. My original Nikon battery is in the charger as I speak.I'm very sad, disappointed, and flat out frustrated! I've emailed Blue Nook, and will update this review when/if I hear from them. This kit will be returned to Amazon first thing tomorrow.UPDATE:I received a call and email from Blue Nook, and I returned their call I had a very nice conversation with Terry who was very apologetic and offered to replace the batteries. I had already sent them back to Amazon, but after speaking with him, I am going to order another set and report back here. Excellent customer service from Blue Nook!UPDATE 2:My second set arrived and I've had several days to test the batteries and the charger. All are first rate! The batteries last just as long (I think even a bit longer) as the OEM Nikon battery. The display on the D7100 correctly displays the remaining battery info. The charger is great as well. Couple that with top-notch customer service and the three year warranty that Blue Nook stands behind 100% and this purchase is a no-brainer! Thanks Terry and Blue Nook!