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).
Cell densities and charge/discharge performance data.

Identifier  ExFiles\Box 38\5\  Scan309
Date  17th April 1928 guessed
  
Contd. -3- Date:-

(12) Cell densities:-

(1) 1120 (4) 1120
(2) 1125 (5) 1120 28-3-23
(3) 1125 (6) 1120

(13) Third charge equivalent to average current
of 4.0 amperes 28-3-23
for 30 hours to 4-4-23
i.e. ampere-hours = 120.0

(14) Cell densities.

(1) 1250 (4) 1250
(2) 1250 (5) 1250
(3) 1250 (6) 1250

(15) Initial amperes - 114.0

Time to 104 amperes - 7.5 mins. 10-4-23
" " 100 " - 11.2 "
" " 90 " - 13.8 "
" " 80 " - 14.7 "

(16) Fourth charge equivalent to average current
of 4.5 amperes 10-4-23
for 26.6 hours to 13-4-23
i.e. ampere-hours = 120.0

(17) Ampere-hours realised up to a point where
record takes a sudden turn down:- 17-4-23
45.7
  
  


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