Very light battery bank with the right charging protocol to apply continuous low-current charging for a bike light with pass-through charging (i.e. Outbound Lighting). High-end mtb lights require this kind of battery for the pass-through charging to work for hours at a time; cheaper battery banks like the INIU I tried have low-current thresholds that stop charging something like a bike light over time.

Exactly what I was looking for not too heavy and really really bright!

Great product

My Mevo+ Golf Launch Monitor for my simulator stopped working. Even with the power cord plugged in, it would not power up. Being it was at least 5 years old and using the original battery, I decided to take a chance on spending $20 (includes S&H) on this battery, that everyone said wasn't my problem because it should still work with the power cable attached, instead of spending $2000 plus for a new Launch Monitor. It arrived in 3-5 days and immediately fixed my problem. Nitecore saved me thousands of dollars and hopefully gave me another 5 plus yrs of simulator fun.

Excellent product for hiking

Great product!

Good general use headlamp. Covers my basic needs without a lot of functions I’d seldom, if ever, use.

Awesome light!
It stays in place and love the battery life.

Excellent!

Perfect little flashlight for work. I’m a lineman and need a quick light more than I ever thought I did. I keep it in my pocket at all times. It’s small enough that I don’t notice it, but it’s there when I need it.

Using this battery charger now on a 12 day backpacking trip. Cold nights at 30 degrees but keeping the charger warm. Got one 15% to 80% charge on my iPhone 17 and still had three bars. Nice charger and the 10oz weight has not been too noticeable.

Quality product

great product support!

Great light except USB charging port cover comes off every time I buy an extra Tube light. Very useful otherwise. Also the NK - EK 4 is super handy.

Super easy to use, great for recharging my CR123's.