The NEW Antigravity ATZ-7-RS is a hi-power lightweight Lithium-Ion battery, built with our groundbreaking RESTART Technology (built-in jump-starting) so you wont ever get stranded with a dead battery again! Directly replaces the OEM YTZ7S, YTZ5 and others. 90% of off-road bikes use this size as well as some street bikes. YTZ7S case size: 4.53 x 2.75 x 3.35 inches (LxWxH) 150 Cranking Amps 7 Amp Hours (PbEq)/ 3.3Ah (Actual) 1.3 lbs Safest Battery Technology using full BMS and Lifepo4 Lithium chemistry Compatible with 6 OEM battery sizes Can be mounted in any orientation