Antigravity Batteries (AGBAG-1601) Lithium Battery Small Case 16-cell, 480 CA, 16 (PbEq). The AG-1601 is an ultra compact 16 cell battery but packs massive power. It can turn many of the larger V-Twin engines up to 113 cubic inches. This battery is often chosen for custom V-Twins where small size is needed, and by adventure riders who want more power and capacity. AG-1601 is also a favorite for race car use.