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).
Decision to use thin plate batteries on the Phantom III, 25/30, and Bentley models.
| Identifier | ExFiles\Box 58\4\ Scan266 | |
| Date | 25th April 1936 | |
| r6021. Mr. and WOF. from E.{Mr Elliott - Chief Engineer} c. Mr. Ey. Mr. Hs{Lord Ernest Hives - Chair}/Wst. E.4/HP.25.4.36. Thin Plate Batteries. With further reference to the above, and your memo Sg.{Arthur F. Sidgreaves - MD}9/E.22.4.36, we have to realise that when voltage control was first introduced on R.R. chassis we stepped down the thickness of the battery plates on the new one piece battery we adopted at that time for our large chassis, and the batteries we are talking about today represent a further thinning of the plates to the standard used by all the mass production people. There is one feature however which has been retained by us, namely the increased separation, by the use of the ebonite separators in addition to the wood which should do much to maintain the reliability so necessary in this unit, and also to ensure that this reliability is superior to that commonly experienced. Having regard to all the circumstances of the case, I think we can do no other than adhere to our decision to use these thin plate batteries on Phantom III, but it is not necessary or advisable to change them on the 25/30 and the Bentley until we have had more experience. E.{Mr Elliott - Chief Engineer} | ||