Review on Power Up Your Tools: KUNLUN 2-Pack Replacement Battery For Black & Decker 20V Lithium Battery 3000MAh by Luis Neels

I purchased these batteries to supplement the battery that came with the Black & Decker cordless palm sander. My brother was doing some repair work on my house but had a 30 day delay between completing the work and sanding. I ordered the sander for him to use when he returned to do the sanding & to give him as a gift for doing the work. When I received the tools I charged all three batteries so they would be ready for his use when he returned. These two batteries did not stay charged making the sander useless to complete the job. I would recommend purchasing the Black & Decker batteries if you need extras.