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).
Correspondence regarding the potential testing of a Tungstone accumulator battery.
| Identifier | ExFiles\Box 35\4\ scan 166 | |
| Date | 22th December 1925 | |
| X3830 To Wd.{Mr Wood/Mr Whitehead} from EFC. EFC4/T22.12.25. X.3830 - TUNGSTONE ACCUMULATOR. Yours Wd{Mr Wood/Mr Whitehead}7/WJ21.12.25. We have carefully read the letter from the Tungstone Accumulator Co., but we still think it would be to our advantage to have the opportunity of examining a single cell before receiving from them a complete 12-volt battery. We think our accumulated experience is now such that we may be able to foresee troubles which may occur with these batteries in the long run which, from the apparent newness of these batteries on the market, may not at present be appreciated. We would like them to realise also that the standard batteries we are now receiving are, owing to various improvements which have been made as a result of the mutual experience between ourselves and the manufacturers, exceptionally good, and that any possible superiority of a battery containing new ideas will take a good deal of proving out. Though our principle with our chassis is to adopt the best in any direction, this must be the well-proved best, and not merely the considered best from a pioneer point of view. Should we decide to have a complete battery for test, they may rest assured that with our thorough method of testing, such real merits which the battery may have will most assuredly be shown up. In particular, the outputs of the dynamos on our experimental cars are nearly all arranged to be somewhat larger than we have as standard, and mostly the charging switch is kept on all the time, so that the battery, if put on an experimental car, will be subjected to considerably larger amount of overcharging than it would have in customers hands. We are particularly interested in this battery from one point of view, viz. the fact that apparently the makers do not have qualms about the possibility of deleterious effects due to overcharging. A battery Contd. | ||