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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).
Routine treatment and testing record for car lighting and starting batteries.

Identifier  ExFiles\Box 168b\3\  img025
Date  20th December 1929
  
X7535
ROUTINE TREATMENT OF CAR LIGHTING & STARTING BATTERIES.

Date:- 20-12-29
Battery under treatment:- P&R & Exide NS{Norman Scott}1 (224)
Rated capacity :- 75 ampere-hours.
Received charged or uncharged:- uncharged
X.7535

General remarks :-
(1) Terminals & Connections. Stal Bolted.
(2) Filling. OK
(3) Standing. OK
(4) First charge:-
Charge given:- 370 ampere hours.

Date.
20-12-29
to
30-12-29

Charge Table:
P&R Exide
Cell No. | 1 | 2 | 3 | 4 | 5 | 6
Density. | 1280 | 1280 | 1280 | 1280 | 1280 | 1280
Voltage. | 2.65 | 2.65 | 2.65 | 2.65 | 2.65 | 2.65
+ve to | 2.45 | 2.45 | 2.45 | 2.45 | 2.45 | 2.45
cadmium.
-ve to | -.20 | -.20 | -.20 | -.20 | -.20 | -.20
cadmium.

(5) Discharge at 6.4 amperes to 10.5 volts.
Total hours :- 9.75
Ampere hours realised:- 62.4

Date: 31-12-29

Discharge Table:
P&R Exide
Cell No. | 1 | 2 | 3 | 4 | 5 | 6
Density. | 1150 | 1150 | 1150 | 1100 | 1100 | 1100
Voltage. | 1.9 | 1.9 | 1.9 | 1.75 | 1.75 | 1.75
+ve to | 2.0 | 2.0 | 2.0 | 1.85 | 1.85 | 1.85
cadmium
-ve to | -.1 | -.1 | -.1 | -.1 | -.1 | -.1
cadmium
  
  


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