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).
Extract from a report on the testing and durability of the new standard Exide 6BXE5 battery.
| Identifier | ExFiles\Box 49\5\ Scan290 | |
| Date | 2nd June 1921 | |
| H.R. 884a (100 T) S.F. 798. 10-12-20 G 2247 X. 4288 Extract from EFC {E. Fowler Clarke - Electrical Engineer} 4/T2.6.21. X.664- BATTERIES Battery No.61 Exide 6BXE5 with separately supported positive and negative plates (New R.R. Standard). This battery has done quite well on the tests. The efficiency appears less than that of the previous 6 BXE5 batteries, but owing to the increased thickness and reliability of separation, and the rounding off of the plates at the corners, it is expected that the loss of efficiency will be more than balanced by the increased durability of the battery. | ||