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).
Letter to Messrs. Peto & Radford concerning testing and maintenance procedures for an RR.11 battery.
| Identifier | ExFiles\Box 54\1\ Scan029 | |
| Date | 21th September 1925 | |
| X46171P EFC2/T. 21st September, 1925. Messrs. Peto & Radford, 50, Grosvenor Gardens, London, S.W.1. For the attention of Mr. G.R.N.Minchin. Dear Sirs, We thank you for your letters of the 15 th and 18th inst. with regard to the RR.11 battery run on an experimental 40/50 HP. car. We have the remaining four cells of this battery in working order. In view of your request we will send you two of these cells in an empty condition. We shall fully charge three, and replace the electrolyte with distilled water, discharge down to 1 volt per cell, and send you two of these. We shall open up the third one of these ourselves and compare its condition with that of the remaining cell which we shall open up straight away without the discharging process. This is the course we recommend when a battery of any kind is to be put out of commission for a period and it is an opportunity of seeing what effect such a course does have on the plates. We instruct, of course, that a battery so treated, when again put into commission, should be subject to a first charge as if the battery were new. Talking of batteries generally (not necessarily chassis batteries) many people would prefer to put their battery right out of commission than have the trouble and expense of the necessary freshening charges and maintenance of level. Presumably you agree with that this is the right course to adopt in such cases, as it is practically what Contd | ||