Emmerich li14500 li ion battery 3 7v 800mah emmerich 241107 p the emmerich li14500 is a rechargeable battery that meets the highest quality standards and offers high reliability this lithium ion battery has the highest power density of any rechargeable battery chemistry it is very light weight and offers great cycle life which makes it the ideal product for many design solutions p emmerich li14500 li ion battery 3 7v 800mah