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).
The guarantee for different thick plate batteries for the Bentley and 40/50 chassis.
| Identifier | ExFiles\Box 58\4\ Scan126 | |
| Date | 13th September 1933 guessed | |
| -2- We are anxious for the fullest information you can give us of all the possible types available for the chassis we have specified in order that we may decide to the best advantage. As you are probably aware we are fitting constant voltage vibrator control to the dynamos on both the Bentley and the 40/50 chassis and we should like to know what guarantee could be given for the life of a 3/32", 1/8" and 5/32" thick plate battery each with dual separation and say 3/4" mud space, running under such ideal charging conditions. Yours faithfully, FOR ROLLS-ROYCE LIMITED. | ||