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).
Graphical record of an electrical accumulator discharge test.
| Identifier | ExFiles\Box 54\2\ Scan134 | |
| Date | 1st July 1926 | |
| X461/ 1-7-26 175. P&R RR11-2 75ak 97 lbs Charged at a continuous current of 6 amperes. Average amperes - 6.3 Hours - 10.3 Ampere hours = 65.0 -.667 1.80v REGD TRADE MARK "MEGGER" | ||