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).
Log sheet detailing the second charge, weight, cell densities, and discharge of a battery.

Identifier  ExFiles\Box 38\5\  Scan042
Date  8th April 1919
  
-2- Contd.

(5) Second charge:-

Amperes. From. To. Hours Ampere hours.
4/4/19 4 12.30 4.30 4.0 28
5/4/19 3 8.30 12.0 3.5 10.5
7/4/19 3.5 8.30 5.30 9 31.5
8/4/19 4. 8.30 2.30 6 24.0

_______ _______ _______ _______ _______________
Total ampere hours 94.0

(6) Emptying and re-filling.

(7) Continuation of charge. Tuesday

(8) Weight of battery. 44 1/4 lbs. -ozs.

(9) Cell densities:-

(1) (4)
(2) (5)
(3) (6)
(A diagonal line is struck through (3) and (4))

(10) Discharge at 4 1/2 amperes
to 10.5 volts.
Total hours. 4
Ampere hours realised. 31.5

Contd.
  
  


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