For the past few months I’ve been shooting a Vello BG-N7 battery grip on a Nikon D810. It retails for only a fraction of the cost of Nikon’s own battery grip. Here’s my hands-on review of the Vello grip.
If you’re using a battery grip on the Nikon D810 or D800, here’s how to see the charge status of both batteries.
The FireCel battery is a pocket-sized external 2500mAh battery for charging devices on the go. It also includes a red light flashlight and a hand warmer function.
If you’re looking for an external USB battery pack that’s more rugged than the usual, this one’s waterproof, snow proof, dirt proof, and drop proof.