4PCS 3.7Volt 18650 Rechargeable Battery Lithium ion Batteries Large Capacity 9900mAh, Household Essentials

My hope was to replace a bad battery in a Dewalt battery pack. But when I opened it up, I discovered battery was welded in place, and would have to break plastic housing. The batteries supplied by the vendor came almost next day in a very secure package, and were completely charged, and ready to go.

This works so much better than what came in my flashlight. Will definitely be purchasing again if the need arises.

The media could not be loaded. These things definitely aren't 9900 mah... NOT EVEN CLOSE!! I Bought 2 of these to replace the the ones I have that are 2600 mah..... I knew before I even charged them that they weren't 9900 mah because they're as light as paper. The 2600 mah ones I have weigh a ton compared to these things. Fully charged they both only lasted 2 and a half hours,the 2600mah ones I have last 4 hours.... I'm not mathematician but something doesn't add up.

They're doing the job at a much better price. The charge isn't holding as long as the more expensive batteries, but I can live with that.

Excellent product. still using them today

Same number as the batter in my product but found out the battery in my product is proprietary.

Good product

High-capacity battery that lasts a long time and many uses!