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).
Test report on an SS Battery (180) detailing its mileage, life test duration, and discharge performance.
| Identifier | ExFiles\Box 54\5\ Scan131 | |
| Date | 2nd May 1930 | |
| E.H.C. J.D.77. X3839 2-5-30. X46175 Tests on SS{S. Smith} Battery. (180) This battery has run 14,767 miles & has been on our bench life test 30 months. There are only 2 of the original cells in this battery, nos 1 Per.T.R. & no 4, Std Exide On Low Rate Discharge 42.7 ampere hours were obtained. nos 1, 5 & 6 cells showed positive weakness. On High Rate Discharge Initial amperes = 103.0 Time to 100 " = 3.6 min " " 90 " = 10.0 " " " 80 " = 12.0 " All cells showed negative weakness. E.J. | ||