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 of continuous high-rate discharge curves for various chassis batteries.
| Identifier | WestWitteringFiles\H\March1922\ Scan31 | |
| Date | 1st October 1921 | |
| X.664 CONTINUOUS HIGH RATE DISCHARGE CURVES OF VARIOUS CHASSIS BATTERIES THROUGH INVARIABLE EXTERNAL RESISTANCE OF .100 Ω BATTERIES 16c, 18c, 27, 40, 50, 59, 60, 62, 68 EXIDE F 82½ lb EXIDE U 82½ lb WILLARD STRC-28 100 lb EXIDE 6 PHR-7 98 lb USA EXIDE 6LXR-9-1 85½ lb P+R HDE-13 107½ lb EXIDE C 82½ lb De Martis 76¾ lb TIME (MINUTES) SHEET K F.S.C | ||