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).
Graph showing continuous high rate discharge curves for 40-50 HP chassis batteries.
| Identifier | ExFiles\Box 54\1\ Scan245 | |
| Date | 21th March 1925 guessed | |
| 40-50 H.P CHASSIS BATTERIES CONTINUOUS HIGH RATE DISCHARGE CURVES THROUGH INVARIABLE EXTERNAL RESISTANCE OF .100 OHM. BATTERIES- 155, 159 AMPERES OR TEN TIMES TERMINAL VOLTS TIME (MINUTES) S.2 101 LBS S.X 103 LBS (159) (155) 120 110 104 100 90 80 0 2 4 6 8 10 12 14 16 18 20 | ||