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).
Final report on the testing and performance comparison of Edison and C.A.V. battery cells.
| Identifier | ExFiles\Box 1\7\ B001_X15 20 46 50 59-page218 | |
| Date | 13th June 1913 | |
| R.R. 235a (100 T) (S.G. 64S. 19-2-10) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2618 X.50 13.6.13. Mr. Wormald. Final report - re X.40/B. X.50. X.560. Edison Cells. I have tested these for quite a considerable time. The average output for cells which I have tested = 12 volts (40 amp.hr. cells) =20.65 amp. hours. 8 volts (40 amp.hr. cells) = 30.6 The discharge varied considerably. Shall I send the record book of discharges and charging curves ? C.A.V. Cells. 12 volts. The out-put of above averages 62 amp. hours I do not think these cells will last very long, the plates are in a poor condition. They also froth very badly when charging. Shall I send the record book of discharge and charging curves ? W.Ellis. | ||