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).
Detailed breakdown of the features and specifications of various Exide batteries delivered over time.
| Identifier | ExFiles\Box 54\2\ Scan173 | |
| Date | 30th March 1926 | |
| To EFC. {E. Fowler Clarke - Electrical Engineer} JC.16. X4617E 30.3.26. EXIDE BATTERIES. V607 X4617E In answer to Wd {Mr Wood / Mr Whitehead} 11/NJ17.5.26 the following are the detailed particular features of the various Exide batteries delivered to us. 6-BXE-5. These batteries were first delivered in May 1919 up to Sept. 1920. Rated ampere hour capacity 50. Overall dimensions - length 19.750", height 10", breadth 6.125". Wood separators only, no feet on the plates and only 2 bridge supports for the plates to rest on. Weight 82 lbs. Delivered from Sept. 1920 to March 1921. Feet fitted to plates and 4 bridge supports with the negatives resting on two of them and the positives on the other two and therefore supported independently of each other. Larger wood separators to reach beyond the edges of the plates and also perforated ebonite sheets included next to the positive plates. Central stay bolt fitted to obtain better rigidity of cells, this making the whole battery .375" longer. Kinked cell to cell links also fitted. Weight 83 lbs. Delivered from March 1921 to Dec. 1923. Plates rounded at the corners. Slightly thinner negative plates. Improvement in lugs passing through lids. Sealing of cells in the box to obtain still better rigidity and also prevent acid rotting the box and central stay bolt. Designation changed to 6-BXE/S on 23.9.21 at the request of the Chloride Co. Delivered from Dec. 1923 to present date. 6RRS-1 to Specn.No.301. Overall dimensions - Length 20.125", Height 10.062", breadth 6.250". Two centre cycle stay spokes fitted, wood and ebonite separators. Feet on plates with four brudges for their support as in the 6BXE5 from Sept. 1920 to March 1921. Rated ampere hour capacity 80. Weight 103 lbs. EFC {E. Fowler Clarke - Electrical Engineer} /G.Johnson. | ||