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).
Battery test log sheet for recording cell density, voltage, and cadmium readings during charging.
| Identifier | ExFiles\Box 168b\3\ img169 | |
| Date | 23th February 1926 guessed | |
| -2- Date. (6) Second charge :- Charge given :- (7) Cell No. 1 2 3 4 5 6 Density. Voltage. +V to cadmium. -ve to cadmium. (8) Emptying and refilling, or adjusting densities and levels. (9) Applicable only if battery comes in charged. Cell No. 1 2 3 4 5 6 Density. 1275 1275 1275 1250 Voltage. 2.72 +ve to cadmium. 2.60 2.45 -ve to cadmium. -0.11 -0.10 -0.10 -0.10 -0.10 -0.10 (10) Weight of battery 37 lbs. 0 ozs. (11) Battery temperature:- 18C Ampere-hours realised up to point where record takes sudden turn down :- 70.7 Contd. R/P/4.18 | ||