Product Certification Consultations and Publications

SC E-18

Applicable to Large Aeroplanes

Deviates from RTCA DO-227 by permitting, for articles of LiFeS2 chemistry, a 5% change in Open Circuit Voltage during the temperature tests, if it remains less than 5% for the complete sequence and if it is shown to meet the 2% limit within 45 days

Deviates from ETSO-C142a by using RTCA DO-227A, corrected to permit the use of an appropriate limiting voltage for the Cell Discharge Current Test, instead of DO-227 modified by Appendix 1 of ETSO-C142a

Deviates from ETSO-C142a by using RTCA DO-227A with a corrected sequence for the end-item testing instead of DO-227 modified by Appendix 1 of ETSO-C142a.

Deviates from ETSO-C142a by using RTCA DO-227A with a corrected testing pattern for battery humidity test instead of DO-227 modified by Appendix 1 of ETSO-C142a

Applicable to Large Aeroplanes