The U.S. aircraft register, updated daily
Parts

Batteries

0 failure reports named the batteries in the last ten years, 922 since 1995.

Reports by year

0801612423222719952713221891131999
Reports by year, as a table
reports
199527
1996271
1997322
1998189
1999113

Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.