The NEW Antigravity ATX30-HD battery is a High Power, lightweight Lithium replacement for the YTX-30 Lead/Acid battery, as well as YIX and GYZ models. This is the HEAVY DUTY version, designed with significant Power and Capacity in this popular case size. This battery is suitable as a much lighter replacement for a full size lead acid battery. It only weighs 7.81 lbs! The 30amp hour capacity means you'll have plenty of usable power when you need it.We can only ship this product by GROUND with UPS or FedEx in the lower 48 US States! Need a different size we don't have listed? Let us know and we'll add it to the website ASAP!