5S2P Battery Pack with Panasonic B Cells, 6.7Ah, 9.75A, 18V, Cuboid Shape, Customizable - 18650 Battery Pack - Lithium Ion Battery Pack - Voltaplex
18V 18.5V 5200mAh 5s2p 18650 Rechargeable Lithium Ion Battery Pack with Aluminum Case and 5521 DC Male Female Jack Plug - China Li-ion Battery Pack, Battery Pack | Made-in-China.com