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).
Instruction sheet detailing the results of low and high rate discharge tests on an S2 Battery.
| Identifier | ExFiles\Box 54\1\ Scan264 | |
| Date | 28th June 1928 | |
| R.R. 258 (150 BKS.) (DB {Donald Bastow - Suspensions} 431-8-12-24) MP 306975 X. 46175 ROLLS-ROYCE, LTD. INSTRUCTIONS. To: C.E.C. Order No.: JC III Customer's No.: Re Tests on S2 Battery (155) On Low Rate discharge through a constant external resistance of 1.80w, 60.6 ampere hours were realised. All cells showed positive weakness on the Cadmium. On High Rate Discharge through a constant external resistance of .100w. Initial amperes = 98.0 Time to 70 amperes = 4.0 min " " 80 " = 8.5 " All cells showed negative weakness on the Cadmium. The D+B cells have less capacity than the Coude. Signed This Sheet must be filed on completion of the work. | ||