Tectra2-Pack EN-EL15C EN-EL15 Battery + LED Dual Charger for Nikon D850, D750, D800, D810, D810A, ZF, Z8, Z5, Z6, Z6 II, Z7, Z7II, D780, D7500, 1 V1, D500, D600, D610, D7000, D7100, D7200 Cameras

Great product and great service

The build quality is middle of the road for the charger, the batteries feel good but for the price you can get better quality batteries and higher energy storage 2280mAh vs 2300mAh. The real big issue I'm having with the product is that the charger will actually eat up the charge while the batteries are still loaded. I was excited for it because the charger is thinner than my other one and is equipped with USB-C which is a plus because all my other devices are USB-C. If I leave the batteries plugged in overnight to go for a shoot in the morning I will come back to both batteries being between 50 and 70% total charge. I shoot a lot with Live View and that missing 30 to 50% charge level really messes with my shoots. Just be mindful of this feature when purchasing.

These batteries fit and power up my D500 and D610 cameras perfectly. They don't have as much capacity as genuine Nikon batteries. My experience with after-market batteries has been mixed. They don't have as long of life as Nikon supplied batteries. But at a quarter of the price plus a charger these seem like good value. It is great to have another battery to put in when shooting a large number of photographs in a session.

OEM batteries were hard to get started charging, after an hour or so they started and seemed to charge.

These batteries work in my new Nikon ZF, display all the right info and importantly can be charged in the camera with no problem. the charger that comes with it also works for my original Nikon EL-15C. Unfortunately the batteries don't last, may be half of the original Nikon Batteries.

The worst batteries I've used, does not show fully charged in the camera and drains within 1 hour

I love the charger with the USB. The batteries seem under powered. Are use 3 to 4 batteries a day. And I have been doing so for seven or eight years. I can see these batteries definitely quit at least 30% sooner than normal batteries.

I ordered the Tectra 2-Pack EN-EL15C Batteries + LED Dual Charger to give me a bit more power in reserve for my Nikon Z6 II camera.I like the USB charger a lot. The display clearly shows the current battery charge level and how much remains before a full charge is achieved.The problems begin when I am using them in my camera. I already use a grip extender on my camera, which means that the camera has access to two batteries for extended shooting periods versus the default one battery slot. These two batteries seem to have the life span of the one Nikon-branded battery that was included with my camera. They just don't last as long. I'll keep using these as backups, in a pinch, for situations where I just need that "little bit more" to make it through a shoot. But these are not going to be my primary batteries by any stretch of the imagination.