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 on a U.S.A. Exide 6 LXR/9/1 battery, noting issues with burnt connections and high internal resistance.
| Identifier | ExFiles\Box 48\3\ Scan044 | |
| Date | 1st June 1921 | |
| X.4206. Extract from EFC4/T2.6.21. X.664 - BATTERIES. Battery No.60 U.S.A. Exide 6 LXR/9/1. This battery is very similar to the British Exide except for the fact of having burnt up connections. It has done well on our tests. It will be noticedthat the internal resistance of the battery is rather high. It is suggested that this battery be put on 7 -CA. | ||