Continued memorandum listing desired features for batteries, prioritizing durability and charge retention.
| Identifier | ExFiles\Box 38\5\ Scan128 | |
| Date | 30th August 1921 | |
| Contd. -2- R4/G30.8.21. difference in weight efficiency or in internal resistance, but go all out for durability, and find out if they can turn the engine quickly for a given weight. The actual storage capacity I think is of much less moment but I do think the feature of the batteries holding their charge is of great importance, so that the features are - (1) Durability. (2) Capacity for high rate of discharge without excessive drop of voltage for short intervals. (3) Absence of internal and external leakage, so as to hold the charge even after being in use some considerable time. R. {Sir Henry Royce} | ||
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).