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Antigravity Lithium Car Group 47 battery adapters

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Antigravity Lithium ATX20RS/HD and ATX30RS/HD battery adapters to replace Group 47 AGM or Lead acid batteries in cars.

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Updated at source: May 24, 2023

Model information

Source: Printables
Category: Automotive
License: Creative Commons — Attribution — Noncommercial — Share Alike

Details Files (2)Makes & comments (Makes: 0) (Comments: 0)Remixes (0)Collections (5)

Originally designed for the Alfa Romeo 4C this adapter can be used without modification to retrofit the Antigravity Lithium batteries listed below into any car that uses a Group 47 battery.

-When installed the battery terminal locations are the same locations as a standard Group 47 battery.

-When installed the mount allows clear access to the restart button on the top of the RS series batteries.

ATX20_batteryholder.stl fits both the ATX20 RS and ATX20 HD

Final_ATX30_battery_holder.stl fits both ATX30 RS and ATX30 HD

Recommended materials: ABS, ASA, PC/ABS, or PC.