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).
Specification sheet detailing battery types, manufacturers, and weights for various models.
| Identifier | ExFiles\Box 164\2\ img022 | |
| Date | 18th December 1939 | |
| 6021 18.12.39. RE BATTERIES. SILVER PHANTOM - 30.G.VII. Dagenite - type 6 HZD 9S. Weight complete with lid{A. J. Lidsey} and bolts - 61 lb. 5 oz. (In this case the D.O. had not left sufficient room for the recommended 25/30 type battery.) SILVER DAWN - 33.G.VII. Dagenite - type 6 HZD 11G. Weight complete with lid{A. J. Lidsey} and bolts - 71 lbs. 31.G.VII. Exide - type 6 XCKR -11S. Weight complete with lid{A. J. Lidsey} and bolts - 72 lbs. Rm{William Robotham - Chief Engineer}/RC.{R. Childs} | ||