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).
Log sheet detailing a battery's second charge cycle, weight, and performance test results.
| Identifier | ExFiles\Box 48\3\ Scan322 | |
| Date | 22th November 1923 | |
| -2- Contd. (6) Second charge :- Amperes. from to hours. amp.hours. Date:- 4.5 2-30 5-30 3.0 13.5 14-11-23 4.5 11-0 3-0 4.0 18.0 15-11-23 3.0 8-0 5-30 9.5 28.5 16-11-23 4.5 10-0 12-0 2.0 9.0 17-11-23 3.0 8-0 5-30 9.5 28.5 19-11-23 ________________________________________________________________ Total = 97.5 (7) Emptying and refilling, or adjusting densities and levels. OK 21-11-23 7a (8) Density readings for battery received charged. (1) - (4) - (2) - (5) - (3) - (6) - (8) Weight of battery 74 lbs. 0 ozs. 21-11-23 (10) Continuation of charge. OK (11) Ampere-hours realised up to a point where record takes a sudden turn down:- 22-11-23 29.0 Temperature:- - Contd. | ||