Just got my hands on the Streamlight SL-B26 rechargeable batteries, and I'm pretty impressed so far! The built-in Micro-USB charging is super convenient—no extra charger needed. Just plug and go.

The battery life is legit. My flashlight stays bright for ages, which is perfect for my late-night dog walks. Yeah, they take about 5 hours to charge, but honestly? Worth it for how long they last.

One thing to note—these batteries are slightly bigger than standard CR123As. They fit my ProTac HL-X like a glove, but didn’t work in my older PolyTac. So double-check your flashlight’s battery compartment!

Only downside? Still using Micro-USB instead of USB-C. Come on, Streamlight, it’s 2023! But overall, these are a game-changer if you’re tired of buying disposable batteries.

Final verdict: 4.5/5 stars. Would definitely recommend to anyone with compatible Streamlight gear!