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).
Causes of battery corrosion on the Phantom II chassis and potential solutions.
| Identifier | ExFiles\Box 168b\3\ img032 | |
| Date | 3rd February 1930 | |
| X7535 E.F.B. JD{J. Draper - Frames}52 3-2-30 X7535 Batteries on Phantom II Chassis In answer to PN{Mr Northey}1/WT 28-1-30 the cause of corrosion is not in my opinion due to shallow lids, although this may contribute towards it slightly. On the P&R battery, with the presence of lead coated brass washers being close to the cell cover & the vent hole being on the same level will cause corrosion, by allowing acid to collect round the terminal post washers. My suggestion of a minor modification in the design of the cell cover as contained in JD{J. Draper - Frames}33 12-10-29 was put forward with this in view. It would be more satisfying to know why P&R's have not adopted this. Antimonial lead washers are now used in lieu of lead coated brass washers which are a definite improvement. With regard to the Exide Battery they have always been fitted with Antimonial lead washers (cont'd) | ||