### Question
Can you define what primary battery means?


### Answer
**Primary battery** is defined as the following in *42 U.S.C. § 18741*:

> a nonrechargeable battery that weighs not more than 4.4 pounds, including an alkaline, carbon-zinc, and lithium metal battery

#### Citation:
  - *42 U.S.C. § 18741*
  - Heading: **CHAPTER 162-ENERGY INFRASTRUCTURE > SUBCHAPTER II-SUPPLY CHAINS FOR CLEAN ENERGY TECHNOLOGIES**

