Description on second photo. I have two batteries, price listed is for one battery. Both batteries for $200 6-13/16L x 3-3/8D x 5-1/4T, comes with blocks to fill out space.

Lithium Ion Polymer technology. All components are designed, manufactured, assembled and packed in one location assuring high quality and consistency. Extremely lightweight, 50% to 70% lighter than standard batteries. Built-in LED test gauge. Increased cranking amps over lead acid batteries. Fast recharge, can be brought up to a 90% charge within 6 minutes. Easily 6 to 12 times more cycle life compared to lead acid batteries. Long shelf life, up to 1 year before requiring recharging. Can be mounted in any position. No hazardous acid or heavy metals, non-explosive and non-combustible. More precise fitments compared to other brands of lithium batteries