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).
Requesting a weight and voltage comparison between Edison cells and lead accumulators for lighting sets.
| Identifier | ExFiles\Box 1\7\ B001_X15 20 46 50 59-page219 | |
| Date | 14th June 1913 | |
| COPY. X.50 R4/B14.6.13. No. from F.H.R., Copies sent to: J.{Mr Johnson W.M.} X664 Re Lighting Set Cells. X 50. X 3374. I have not yet received the comparison of the weight of the Edison cells compared with the usual lead accumu-lators for use with a lighting set. Neither have I received a definite statement as to whether the voltage on the lamp of an installation on a car would vary more with this type of cell, between charging and discharging, than with a lead accumulator. F.H.R. | ||