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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).
The development and performance of Exide batteries for the 40/50 chassis.

Identifier  ExFiles\Box 49\5\  Scan358
Date  11th October 1924
  
To R & E.{Mr Elliott - Chief Engineer} from EFC.
c. CJ. & FN.
c. Nor. Wd.{Mr Wood/Mr Whitehead}
c. By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} Da.{Bernard Day - Chassis Design}

X4288
(Extract) EFCl/T11.10.24.

X.664 - BATTERIES FOR 40/50 CHASSIS.

Exide 6.RXRE-5 (Standard until recently). X4288

This refers to the final form (complete with all improvements) of the original 6BXRE5 battery. All the troubles which we have had in various stages of development of this battery have practically disappeared. Previous to the inclusion of the ebonite separators in addition to those of wood, the internal resistance of the battery was considered alright. The improvement of the inclusion of ebonite separators (from a reliability point of view) increased the internal resistance to a rather higher figure than we thought fit to specify. The various improvements effected between the original and the final forms were detailed in our EFC3/T7.3.21. extract from which report is attached.

These batteries now appear to be giving reasonable service outside, lasting in some instances for 3 1/2 years, though on Test Dept. work they have not seemed to be all that is desired, still suffering from premature disintegration of the plates.

The weight of this battery is 83 lbs. and capacity 55 ampere-hours, a figure which has been considered rather on the small side for the 40/50 car.

Contd.
  
  


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