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).
The failure of a P & R cell in an S4 battery (157) during a bench life test.
| Identifier | ExFiles\Box 54\1\ Scan307 | |
| Date | 3rd October 1928 | |
| COPY. EFC. JC.129. 3.10.28. RE FAILURE OF P & R CELL IN S4 BATTERY (157) One P & R cell has failed in this battery after being on our bench life test for 22 months and run 31,000 miles on the road. Its age is 3 years 4 months. Failure was due to accumulated sediment which had reached up to the plates causing a short. The negative plates and separators were in excellent mechanical condition. The positive plates were <strike>fair</strike> poor, having lost a good amount of paste, the grid being very weak. The remaining cells are being used for replacements. EFC/G.Johnson. | ||