ETSO-C173a

• ED Decision 2016/013/R found in: CS-ETSO Amdt 17 - European Technical Standard Orders (Oct 2026)

#### ETSO-C173a *ED Decision 2016/013/R* ##### Nickel-Cadmium, Nickel Metal-Hydride, and Lead-Acid Batteries **1 Applicability** This ETSO provides the requirements which Nickel-Cadmium, Nickel Metal-Hydride, and Lead-Acid Batteries that are designed and manufactured on or after the applicability date of this ETSO must meet in order to be identified with the applicable ETSO marking. **2 Procedures** 2.1 General Applicable procedures are detailed in CS-ETSO, [Subpart A](#_DxCrossRefBm920220672). 2.2 Specific None. **3 Technical Conditions** 3.1 Basic 3.1.1 Minimum Performance Standard Standards set forth in the RTCA DO-293A, Minimum Operational Performance Standards (MPS) for Nickel-Cadmium, Nickel Metal-Hydride, and Lead-Acid Batteries, dated 12/2/2009, as amended according to [Appendix 1](#_DxCrossRefBm920220916) to this ETSO. 3.1.2 Environmental Standard Nickel-Cadmium, Nickel Metal-Hydride, and Lead-Acid Batteries shall be tested according to the conditions specified in RTCA DO-293A. Where the RTCA DO-293A quotes the RTCA DO-160 standard, the applicable DO-160 standard revision is defined in CS-ETSO, Subpart A, paragraph 2.1. 3.1.3 Computer Software See CS-ETSO, Subpart A, paragraph 2.2. 3.1.4 Electronic Hardware Qualification See CS-ETSO, Subpart A, paragraph 2.3. 3.2 Specific None. 3.2.1 Failure Condition Classification See CS-ETSO, Subpart A, paragraph 2.4. **4 Marking** 4.1 General Marking as detailed in CS-ETSO, Subpart A, paragraph 1.2. 4.2 Specific At least one major component shall be marked permanently and legibly with all the information in RTCA DO-293A, section 1.10, as modified by Appendix 1. **5 Availability of Referenced Document** See CS-ETSO, Subpart A, paragraph 3. [Amdt ETSO/11]