These are great batteries, but you'll probably need a better charger. If you want the gist of the review, that's it.

They seem to have high quality cells inside and are probably one of the best third party NP-F battery options out there. First of all, the batteries came at exactly 7.8V storage voltage. That's a good sign on its own, but both of them arriving right on point at 7.8V can't be a coincidence. Someone is clearly paying attention during production, and the cells seem more than capable of holding that storage voltage.

Another thing that made me trust these is the honest capacity rating. NP-F capacity claims have gotten so out of hand that it's nearly impossible to know what you're actually getting. These are rated at 6,600 mAh and clearly labeled as real capacity, which seems realistic for the NP-F970 form factor. I appreciate that instead of jumping into the endless capacity inflation game, they're being straightforward about what they deliver.

So if you're in my situation where you already have decent chargers for your NP-F batteries and you're just looking for reliable cells, this is probably one of the best bets from a third party. But if this is your first set and you're thinking about relying on the included charger, you may find it's not up to the task for keeping these in constant rotation. The charger outputs 8.4V at 700 mA on a single slot, and drops to 500 mA per slot when both are occupied. When you do the math, you're looking at well over 12 hours for a full charge. More like 14 to 15 hours realistically. So if you plan on putting them in daily use, you're going to want a dedicated charger or an NP-F plate that doubles as one.

Around the time I ordered these they were priced a bit higher than I'd prefer, but I see they've come down since then, making the listing price more reasonable. Still not the cheapest option, but the difference between a random no-name NP-F battery and a set you know is going to perform is definitely worth paying for.