Sealey-E-START800HY-Electro Start-Hybrid-Power-Start-800A-12V-Sealey-E-START800HY-Vehicle-jump-starting-made-easy-with-innovative-technology-Unlike-traditional-boosters-it-does-not-require-an-internal-battery-as-a-primary-power-source-but-incorporates-a-lithium-battery-pack-to-energise-capacitors-when-vehicle-battery-is-insufficient-Simply-connect-to-the-vehicle-s-battery-even-if-discharged-&-the-unit-will-draw-enough-power-to-energise-itself-in-a-matter-of-minutes-Power-can-then-be-pu