The Antigravity Batteries ATX20-HD is part of our HD (Heavy Duty) Series specifically designed to offer SIGNIFICANTLY more Amp Hours (6 Ah more per battery) and Power than the original versions of the ATX20/30 to meet the special needs of those looking for the most compact yet powerful battery. These batteries are intended for those special applications like heavily accessorized Touring Motorcycles, Racing and Street Performance Vehicles, Experimental Aircraft and more. Simply put, these are the most powerful and compact batteries available from any manufacturer.
The Heavy Duty ATX20-HD does not have our RE-START built-in jump-starting feature but offer a deeper level of Discharge for more usable Capacity and more Power for Cranking. They also offer a FULL Battery Management System (BMS) to protect the battery from over-discharge and over-charge as well as having Thermal Protections. This makes for the safest and longest life-cycle possible.