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).
Bench tests performed on an SY Battery, detailing low and high rate discharge results.
| Identifier | ExFiles\Box 54\1\ Scan246 | |
| Date | 21th March 1925 | |
| RR 239 (150 BKS.) (DB {Donald Bastow - Suspensions} 461-8-12-24) MP 306975 X4617S ROLLS-ROYCE LTD. INSTRUCTIONS. To: E & C. Order No.: JC.76. Customer's No.: X4617S Re tests on SY Battery (170) This battery was taken from the M.S. for bench tests. On low rate discharge through a constant external resistance of 1.80w 52 ampere hours were realised. Positive weakness was shewn on the cadmium test on the Oldham cells. After a good charge it was given a high rate discharge through a constant external resistance of 100w Initial amperes = 108.0 Time to 100 " = 10.5 min " " 90 " = 14.9 " " " 80 " = 16.9 " Cadmium readings shewed negative weakness on all cells. Signed: G.J. This Sheet must be filed on completion of the work. | ||