4 Pack 3.7 Volt Button Top 18650 Rechargeable Batteries,Lithium Battery 3300mAh for Flashlights, Headlamps, Doorbells, RC Cars,Outdoor Garden Lights

I've bought other brands of 18650 batteries, but these a by far and away the best ones to date! They come with a 50% charge (perfect for storing this type of battery), and they don't get weaker as the battery power decreases like so many other 18650 batteries do. They provide about the same amount of power when they're have a 10% charge as they do when they have a 90% charge.

I decided to try these for flashlight use since the previous vendor I use doesn't seem to exist anymore (those batteries have served me well since 2018).First off, beware of any vendor with ridiculous capacity claims. Also there are lots of horror stories of subpar rechargeable batteries when purchased on line.These batteries have a claimed capacity of 3300 mAh. After complete charge (they arrive at around 50% charged, ideal state of charge for storage) the were all in the 3100 to 3200 mAh range and stayed cool during charging. After a few charging cycles I'm sure they'll be up around the 3300 mAh range.I definitely recommend these.

I have used so many different rechargeable batteries that just do not perform as described. There are many that over state the mAh's and do not last over 20 recharges until they start going weak in 15 minutes. These have surpassed my expectation's as I have never bought this brand before, but to my surprise these work GREAT. I waited until I used these for several weeks and they still are holding the charge when using them for a long time close to 1 hour on MAX Power on my headlamp set which to me is incredible. The one thing you have to get used to is the recharge time. They take longer than those Cheap-O's but that is to be expected on a True Quality Product. I will buy more as needed That's A Fact Jack...

Testing around 2.8ah for me. That's incredibly better than all the other 18650's I've bought on Amazon.

Good value for money

I had a bad experience with another battery type I bought to replace a 2500 mah battery I had in a MIDI controller. So, when I bought this pack of 4 batteries, I ran a test on them for capacity. They came up a little short.The batteries are rated for 3300 mah on the battery and in the Amazon advertisements. Testing the batteries on a tester, they came to an average of 3048 mah, with a minimum of 3010 mah and a maximum of 3100 mah. Running the same test on my 2500 mah battery gave me a capacity of 2596 mah.

They fit perfectly needed to replace my batteries in my solar lights and they fit right. Couldn’t find anywhere else

worked for what we needed it for