Battery retention methods and mechanisms for handheld controllers

An artificial-reality system, comprising:

• a head-mounted display configured to present computer-generated images to a user's eyes;
• and
• a handheld controller configured to provide an input for manipulating the computer-generated images presented by the head-mounted display, the handheld controller comprising:
• a battery compartment comprising a spring-loaded negative contact and a spring-loaded positive contact for respectively electrically coupling to a negative terminal of a cylindrical battery and an opposing positive terminal of the battery, the positive terminal comprising a central protrusion, wherein:
• the spring-loaded negative contact comprises a convex conductive cap having a cylindrical shape and a first flange to retain the spring-loaded negative contact in the battery compartment;
• and
• the spring-loaded positive contact comprises a concave conductive cap having a cylindrical shape, a raised lip along a circumference of an end of the concave conductive cap, a depression radially inward from the raised lip defining a concave surface shaped and sized for receiving the central protrusion of the positive terminal of the battery, and a second flange to retain the spring-loaded negative contact in the battery compartment.

A method of retaining a replaceable battery in a handheld controller, the method comprising:

• positioning a replaceable cylindrical battery within a battery compartment of a handheld controller;
• depressing a spring-loaded negative contact in the battery compartment with a negative terminal of the battery by abutting the negative terminal of the battery with a convex surface of a first cylindrical conductive cap;
• retaining the spring-loaded negative contact in the battery compartment with a first flange of the first cylindrical conductive cap;
• depressing a spring-loaded positive contact in the battery compartment with a positive terminal of the battery by abutting the positive terminal of the battery with a second cylindrical conductive cap of the spring-loaded positive contact and positioning a central protrusion of the positive terminal of the battery within a concave surface on an end of the second cylindrical conductive cap;
• retaining the spring-loaded positive contact in the battery compartment with a second flange of the second cylindrical conductive cap of the spring-loaded positive contact;
• and
• retaining the battery in the battery compartment with spring forces from both the spring-loaded negative contact and the spring-loaded positive contact.