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 detailing battery charge, discharge, and cell density readings.
| Identifier | ExFiles\Box 49\5\ Scan277 | |
| Date | 8th March 1926 guessed | |
| -2- Contd. Date:- (11) Cell densities :- Not (1) Sufficient-(4) acid above plates to (5) get density readings )12) Third charge equivalent to average current of 5.0 amperes for 20 hours. i.e. ampere-hours = 100 (13) Discharge at 10.0 amperes to 10.0 volts. Total hours :- 5.0 Ampere hours realised :- 50.0 22-3-21 31-3-21 5/4/20. R.R. X518 (100) (T.S. 642. 12-2-20) C. (02-2-0) S103 | ||