3.7 Volt Button Top 2 Packs 18650 Rechargeable Batteries 18650 Battery for Flashlights, Headlamps, Doorbells, RC Cars (Blue)

I bought these to replace the batteries in my son's lightsaber, and they are doing the trick. They're a standard 18650 battery, and even though the original batteries are non-standard length, I was able to bend out the contacts to keep this standard length battery in place. So far, no issues with power supply to the saber, and the charge duration seems to be a lot longer than the original battery.

I installed 2 motion sensor solar lights last year for 2 elderly ladies, who depend on these lights at night. They quit working in less than a year. We purchased the lights at Lowe's, of course they don't carry the replacement batteries. I didn't realize there are several sizes and shapes of rechargeable solar batteries. I matched the information (volts, milliamps) included in the directions the best I could and purchased these batteries. They fit! They are not a standard size AA battery. They worked right away. Happy customers. thanks

Battery fit perfect. Just remember to make sure that you buy the right one or it will not work. Example: the battery with the raise bump on it orThe battery that’s flat on both ends.

Pretty good rechargeable battery. I bought these by mistake as they turned out to be the wrong physical size. I needed the same battery number in AA size but this one is too big. I happen to have other devices that use this particular battery though so they should make nice spares,

Don’t hold a charge! Guess they were cheap for a reason very disappointed!

Fit my rechargeable flash Lights & last for hours on a single charge

I haven't yet used them as they are spares for when I travel with my radio. I like to keep a couple batteries charged and at the ready. These have a lot more milliamp hours than my original, so I am expecting a much longer life.

Batteries are a bit shorter than the original one I'm replacing. Rattles in light, and does not fit in charger tight.