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).
Cell densities and charge/discharge test results.
| Identifier | ExFiles\Box 41\2\ Scan111 | |
| Date | 15th June 1920 | |
| R.R. 199 (250T) (SD676 19-7-17) M.P. 180865 -3- Contd. (11) Cell densities :- (1) 11.30 (4) 1120 (2) 11.30 (5) 1120 (3) 1120 (6) 1120 (12) Third charge equivalent to average current of 10 amperes for 20 hours. i.e. 200 ampere-hours. (13) Discharge at 20 amperes to 10.0 volts Total hours :- 4.83 Ampere hours realised :- 96.60 [Right Margin] Date. 8.6.20 8.6.20 to 15.6.20 15.6.20 | ||