This portable lithium jump starter packs a huge 6250A peak boost start, so safely start all cranking batteries with ease in a matter of seconds. Lightweight, compact, portable, and a big jump is what makes this jump start perfect for all applications. Use for Boats, rv&';s, vehicles, equipment and many more! This jumper can start up to a 10.0L liter gas engines and up to 8.0L Diesel engines! Up to 20 starts on a single charge!