Battery Chargers

Sign up for e-mail updates on regulations for this and other products

As defined in the Code of Federal Regulations (CFR), “battery charger” means a device that charges batteries for consumer products, including battery chargers embedded in other consumer products. 10 CFR 430.2. For information on uninterruptible power supply (UPS) battery chargers, please see the UPS webpage.

Current Standard | Current Test Procedure | Ongoing Rulemaking for Standards | Ongoing Rulemaking for Test Procedure | Helpful Links

Recent and Ongoing Activities

DOE has published a Federal Register notice final rule amending the existing test procedures for battery chargers to reorganize certain subsections, clarify symbology and references, correct an incorrect cross reference and section title, update the list of battery chemistries, and terminate an existing test procedure waiver because the covered subject models have been discontinued. This final rule also establishes in new appendix Y1 a new a test procedure for battery chargers that expands coverage to include inductive wireless battery chargers and establishes associated definitions and test provisions; establishes a new test procedure approach that relies on separate metrics for active mode, standby mode, and off mode; and updates the EPS selection criteria. The new test procedure Y1 will be used for the evaluation and issuance of updated efficiency standards, as well as to determine compliance with the updated standards, should such standards be established.

  • The effective date of this rule is October 11, 2022
  • The amendments to the current test procedure will be mandatory for product testing starting March 7, 2023.
  • Manufacturers will be required to use the amended test procedure in appendix Y until the compliance date of any final rule establishing amended energy conservation standards based on the newly established test procedure in appendix Y1. At such time, manufacturers will be required to begin using the newly established test procedure in appendix Y1.

For the latest information on the planned timing of future DOE regulatory milestones, see the current Office of Management and Budget Unified Agenda of Regulatory and Deregulatory Actions. All planned dates are preliminary and subject to change.


Notice of Webinar and availability of Preliminary Technical Support Document

Request for Information

  • Federal Register, 85FR57787 (September 16, 2020)
Final Rule

The battery charger energy conservation standard rulemaking docket EERE-2008-BT-STD-0005 contains all notices, public comments, public meeting transcripts, and supporting documents pertaining to this rulemaking.

Public Meeting Information:

There is no public meeting scheduled at this time.

Submitting Public Comments

The comment period is closed.


Test Procedure

Final Rule; Correction

Final Rule

  • Federal Register, 87FR60867 (October 7, 2022)
  • Federal Register, 87FR55090 (September 8, 2022)

NOPR; Comment Extension

Notice of Proposed Rulemaking

  • Federal Register, 87FR890 (January 7, 2022)
  • Federal Register, 86FR66878 (November 23, 2021)

Request for Information

Final Rule 

The battery charger test procedure rulemaking docket EERE-2014-BT-TP-0044 contains all notices, public comments, public meeting transcripts, and supporting documents pertaining to this rulemaking.

Public Meeting Information

There is no public meeting scheduled at this time.

Submitting Public Comments

The comment period is close.


Current Standard

Battery Chargers manufactured and distributed in commerce, as defined by 42 U.S.C. 6291(16), must meet the energy conservation standards specified in the Code of Federal Regulations at 10 CFR 430.32(z)..

Current Test Procedure

Any representation regarding the energy consumption of battery chargers must be based on the test procedure methods specified at 10 CFR 430, Subpart B, Appendix Y. Upon the compliance date(s) of any energy conservation standard(s) for battery chargers, use of the applicable provisions of this test procedure to demonstrate compliance with the energy conservation standard will also be required.

Helpful Links


DOE has established regulations on certification, compliance, and enforcement in the CFR at 10 CFR 429.  These regulations cover statistical sampling plans, certified ratings, certification reports, record retention, and enforcement.  More information on these regulations is available here.


For information on current test procedure waivers, see DOE’s Waivers webpage.

For information about obtaining test procedure waivers, see 10 CFR 430.27.


DOE's Office of Hearings and Appeals has not authorized exception relief for battery chargers.

For information about obtaining exception relief, see 10 CFR 1003.

Guidance and Frequently Asked Questions

For information on further guidance and answers to Frequently Asked Questions on all covered products, see DOE’s Further Guidance database

State Exemptions to Federal Pre-emption

DOE has not exempted any state from this energy conservation standard. States may petition DOE to exempt a state regulation from preemption by the Federal energy conservation standard. States may also petition DOE to withdraw such exemptions. For details, see 10 CFR 430, Subpart D.

Small Business Exemptions

Any manufacturer of a covered product with annual gross revenues that do not exceed $8,000,000 from all its operations and meets certain other conditions may apply for an exemption to the energy conservation standard. For details, see 10 CFR 430, Subpart E.


Find tips and guidance for making your home, workplace, or vehicle more energy efficient at

DOE supports the testing and verification of ENERGY STAR® products in close collaboration with the Environmental Protection Agency.

Contact information

For more information related to this product, please email: