Schumacher"s line of portable power sources are powerful and versatile. These power sources meet every need. A powerful, sealed, lead-acid battery drives the power to operate virtually anything from cellular phones and camcorders to electric coolers as well as bilge pumps. Every schumacher power source comes with a one-year limited warranty (90 days on battery). Don"t let the smallest of our power source units mislead you by its size. Its 7 ampere hour battery has power enough to handle most jobs. Compact, lightweight and easily transportable, it"s perfect for on-the-go action and still has a lot of the same features as its bigger brothers.