4Pack 18650 Battery, 3.7v 18650 Rechargeable Battery 3000mAh for Outdoor Solar Lights, Deck Lights, Landscape Lighting, Flashlight, etc (Button Top)

If you have more than one or two gadgets in your house that use these batteries, it's a great idea to have some spares in storage. I also bought a specific battery charger for these types of batteries, covering the gamut of sizes, and types, excluding alkaline. The charger is capable of putting a 'storage charge' on lithium batteries for long term keeping, properly discharging and recharging plus capacity checking. It is Vapcell S4 fast Charger 3A,found here on Amazon.These batteries took several hours to reach full charge but read 100% full. I did a capacity test on one of them and it tested out at full 3000 mAh. After 70 days, a voltage test showed a 95% voltage retention. Pretty good in my opinion. I will put these in for top off charging once a year. I consider them a pretty good value and are built for durability.

Worked as they are suppose to. Much less expensive then those sold at battery store. Only had these batteries for a week. Will see how long these last. They charge up real fast

Worked as described, quick shipping and delivery