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).
Test results for an Exide 6RR5-1-3 battery, noting poor performance.
| Identifier | ExFiles\Box 54\2\ Scan166 | |
| Date | 14th January 1926 | |
| RR 300 (20 Bks.) (SK 354 5-12-22 MP 264049) X.4617E. 108716 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To E.T.L. Date 14-1-1926 Order No. Customer's No. Re TB144 Re Tests on Exide 6RR5-1-3 Battery(174) This battery was given a low rate discharge through an invariable external resistance of 1.90w & gave 57.5 ampere hours. Following a good charge a High Rate Discharge through an invariable external resistance of .100w & the initial amperes were 98.7 Time to 90 amperes = 9.7 min " " 80 " = 13.5 " These results are not very good but it has ran 6090 miles on the road & these are the first bench tests taken, but judging by results on other Exide batteries this one has deteriorated to a certain extent. Signed G.J. This Sheet must be filed on completion of the work. | ||