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 | ||