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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).
Charging and discharging treatment of a car lighting and starting battery.

Identifier  ExFiles\Box 9\6\  06-page22
Date  24th March 1919
  
H.R. 235A (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13.

X 646

24.3.19.

ROUTINE TREATMENT OF CAR LIGHTING AND STARTING BATTERIES.

Battery under treatment:- Fuller type SQ 12/H B. X 646. 53 a h rated capacity
General remarks:- Came in uncharged.
(1) Terminals. Lead lugs, brass cones and nuts.
(2) Filling. Very difficult job.
(3) First charge:-
Amperes. From. To. Hours. Ampere hours.
4    2.30    5.30    3    12
3    5.30    9.0    15 1/2    46 1/2
4    9.15    5.15    8    32
2 1/4    5.30    8.30    15    33 3/4
4    8.30    5.30    9    36
2 1/4    5.30    9.0    15 1/2    35
4    9.0    4.0    7    28

Total ampere hours 223 3/4

(4) Discharge at 6 amperes.
to 10.5 volts,
Total hours 6 1/4
Ampere hours realised. 31 1/2.

Contd.
  
  


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