Rolls-Royce Archives
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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 condition and failure analysis of a Young 2 battery after extended use.

Identifier  ExFiles\Box 164\4\  img010
Date  12th February 1931
  
676. X6056.
12-2-31.
J.O.118
X4671
Young 2. Battery. (175)
This battery is now 2 years 3 months old & has run 15,165 miles on the road. One of the lead burnt up connectors was fractured on the completion of this mileage.
The bench tests taken at intervals have been reasonably good.
No 3 cell failed after being in the M.S. 4 months & has been opened up for examination
The negative plates are in good condition but the paste was hard due to the presence of sulphate.
The positive plates were poor having lost a large amount of paste & practically all of this was loose in the grid in the form of hard pellets. The grids are of a very open mesh having the apices of the prongs facing outboard. The design is not good from a paste retaining point of view.
(cont'd)
  
  


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