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 levels, density readings, and weight measurements.
| Identifier | ExFiles\Box 54\1\ Scan183 | |
| Date | 30th June 1925 | |
| contd. Date. -2- (6) Second charge :- Amperes. from to hours Amp.hrs. Total (7) Emptying and refilling, or adjusting densities and levels. (7a) Density readings for battery received charged. (1) 1280 (4) 1250 (2) 1250 (5) 1280 (3) 1280 (6) 1250 22-6-25 (9) Weight of battery/ozlbs. 0.ozs. 22-6-25 (10) Continuation of charge. OK. (11) Ampere-hours realised up to a point where record takes a sudden turn down :- 58.8 18.5 at 65°F 29-6-25 (12) Cell densities :- (1) 1175 (4) 1150 (2) 1150 (5) 1175 (3) 1170 (6) 1150. 30-6-25 | ||