I've been using the Burflo 1800mAh batteries with my Insta360 Ace Pro for a few weeks now, and they've become an essential part of my filming kit. The first thing that struck me was how seamlessly they fit into the camera - no awkward clicks or resistance when inserting them.

During a recent day-long hiking trip, I put these batteries through their paces. Shooting in 4K/30fps with HDR enabled, each battery lasted me about 95 minutes, which aligns perfectly with other reviews I've seen. What really impressed me was how consistent they were - no sudden drops in power or unexpected shutdowns.

The included storage cases are sturdier than I expected. I tossed them in my backpack alongside other gear, and they protected the batteries from bumps and scratches. The cases also have this satisfying snap when closing that makes me confident about the protection.

Charging does take a bit longer than I'd like (about 1.5 hours from empty), but here's a pro tip: charge one while using the other, and you'll never run out of juice. I found they work great with power banks too when you're on the move.

Are they revolutionary? No. But for the price, they deliver exactly what you'd want - reliable backup power that performs nearly identical to OEM batteries. If you're like me and hate being caught without power during important shots, these are definitely worth having in your kit.