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).
Instructions and results for a P4RRRII-2 battery discharge test.
| Identifier | ExFiles\Box 54\1\ Scan089 | |
| Date | 10th February 1926 | |
| R.R 236 (150 BKS.) (DB{Donald Bastow - Suspensions} 431-8 12 24) MP J06975 X.4617P. ROLLS-ROYCE, LTD. INSTRUCTIONS. To: E.F.B. Date: 10-2-1926 Order No.: J.C.7 Customer's No.: X4617P. Re Test on P4RRRII-2 Battery. This battery was put on a Low Rate Discharge through an invariable sectional resistance of 1.80 ohms & gave 65.4 ampere hours. This result is better than the one taken previously about 10 weeks ago when only 56.8 ampere hours were realised. The battery had stood on open circuit (but discharged) for approximately 5 hours when it was switched on discharge again. When each cell was discharged down to a little below 1.80 cadmium readings were taken & all the cells (cont d) Signed This Sheet must be filed on completion of the work. | ||