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).
Instruction sheet detailing the failure analysis of a P&R battery cell.

Identifier  ExFiles\Box 54\1\  Scan302
Date  3rd October 1928
  
RR 238 (150 BKS.) (DB{Donald Bastow - Suspensions} 431-8 12 24) MP 306975
ROLLS-ROYCE LTD.
INSTRUCTIONS.
To: C.E.B.
Order No. SC129
Customer's No. X4617S
Re Failure of P&R cell in S4 Battery (15)
One P&R cell has failed in this battery after being on our bench life test for 22 mths{Reg Matthews} & ran 31,000 miles on the road. Its age is 3 yrs 4 mths.{Reg Matthews}
Failure was due to accumulated sediment which had reached up to the plates causing a short.
The negative plates & separators were in excellent mechanical condition.
The positive plates were poor having lost a good amount of paste, the grid being very weak.
The remaining cells are being used for replacements.
Signed: G.J.
This Sheet must be filed on completion of the work.
  
  


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