Instruction sheet detailing the failure analysis of a P&R battery cell.
| Identifier | ExFiles\Box 54\1\ Scan302 | |
| Date | 3rd October 1928 | |
| RR 238 (150 BKS.) (DB {Donald Bastow - Suspensions} 431-8 12 24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. To: C.E.B. Order No. SC129 Customer's No. X4617S Re Failure of P&R cell in S4 Battery (15) One P&R cell has failed in this battery after being on our bench life test for 22 mths {Reg Matthews} & ran 31,000 miles on the road. Its age is 3 yrs 4 mths. {Reg Matthews} Failure was due to accumulated sediment which had reached up to the plates causing a short. The negative plates & separators were in excellent mechanical condition. The positive plates were poor having lost a good amount of paste, the grid being very weak. The remaining cells are being used for replacements. Signed: G.J. This Sheet must be filed on completion of the work. | ||
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).