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).
Instructions and results for testing the recharging potential difference of a P&R RR11 battery.
| Identifier | ExFiles\Box 54\1\ Scan141 | |
| Date | 31th January 1927 | |
| RR 238 (150 BKS.) (DB {Donald Bastow - Suspensions} 461-8-12-24) MP 306975 X. 4617P. ROLLS-ROYCE, LTD. INSTRUCTIONS. To: E.P.E. Order No.: JC68 Customer's No.: X4617P Recharging PD of Standard P&R RR11 Battery Standard P&R RR11-3 (1B2) battery was charged at various currents up to 12 amperes & its PD noted. Readings were taken increasing the current & then decreasing & similar results were obtained in both cases. A graph is attached showing the curve of these readings. The PD is much lower than when taken on an earlier battery as reported in EFC {E. Fowler Clarke - Electrical Engineer} 1/T26-6-26. Signed: gg This Sheet must be filed on completion of the work. | ||