Instruction sheet detailing re-tests on a 5V battery following a cell failure.
| Identifier | ExFiles\Box 54\1\ Scan228 | |
| Date | 20th January 1927 | |
| RR 238 (150 BKS.) (DB {Donald Bastow - Suspensions} 461-8-12 24) MP 306975 X4617S ROLLS-ROYCE LTD. INSTRUCTIONS. 20-1-1927 To: CLG. Order No.: Jeble. Customer's No.: X4617S Re tests on 5V Battery (173) This battery was removed from the M.S. due to one Oldham cell having failed (see report SC6414-1-2). This has been replaced by an Exide 6RR25-1 cell fitted with threaded rubber separation. On low rate discharge through a constant external resistance of 1.80 w only 26.4 ampere hours were obtained. The Oldham cells showed positive weakness on the Cadmium. On high rate discharge through a constant external resistance of .150 w Initial amperes = 104 Time to 100 " = 4.1 min " " 90 " = 6.4 " " " 80 " = 7.3 " Negative weakness was shown on Signed: (Contd.) 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).