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).
Battery charging test methods, proposing an experiment with external resistance.
| Identifier | WestWitteringFiles\O\2April1926-June1926\ Scan247 | |
| Date | 26th June 1926 | |
| Contd. -4- EFCl/T26.6.26. but it is a point about which we are not quite certain at present and which will bear further investigation, because it does have some bearing on the question of the satisfactory use of a generator and controller subject to ideal control from the generator point of view. Perhaps the most practical method of test charging a battery with such a charging characteristic is to insert in series with the battery an invariable external resistance of .25 ohm and charge the battery through this resistance with a sustained voltage of 17.0. We propose to do this as an experiment and observe whether the capacity of a battery is to any extent reduced as compared with charging at definitely constant current. EFC. | ||