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 comparing the performance curves of different batteries under continuous high-rate discharge.
| Identifier | WestWitteringFiles\H\March1922\ Scan33 | |
| Date | 8th October 1921 guessed | |
| X 664 BATTERY CURVES CONTINUOUS HIGH RATE DISCHARGE CONSTANT CIRCUIT RESISTANCE -.100 ω BATTERIES 59, 66, 74, 85 TERMINAL VOLTS AMPERES OR TEN TIMES 120 110 100 90 80 TIME (MINUTES) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Curve Labels: DEMARTIS 76 3/4 lbs CHLORIDE 6-XHRG-1 102 lbs P. & R.{Sir Henry Royce} BD{Mr Berend}11 95 lbs R.R. TUDOR 3. 89 1/2 lbs Data Points: (59) (66) (74) SHEET M | ||