| CPC H01M 50/202 (2021.01) [H01M 50/262 (2021.01); H01M 50/271 (2021.01); H01M 50/109 (2021.01)] | 25 Claims |

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1. A device comprising:
a base defining a battery opening in which to receive a battery, the base including a retainer located proximate to the battery opening, and the battery having a form factor of a coin-cell;
a cover disposed in the battery opening and secured in place against the retainer to prevent removal of the battery from the base while the cover is coupled to the base, the cover including a detent and a body portion, wherein the cover is depressible so as to be releasably secured to the base upon engagement of the body portion with the retainer and engagement of the detent with a shoulder of the base; and
a cap removably coupled to the base over the cover.
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