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).
Experimental record sheet for an Exide 3RRS-1L-LH3 battery, tracking mileage and usage.
| Identifier | ExFiles\Box 164\4\ img028 | |
| Date | 20th April 1931 | |
| ELECTRICAL EXPERIMENTAL RECORD SHEETS. XNO-6021 Exide 3RRS-1L-LH {Mr Haworth} 3 Battery (234) F80951 Date on. Location. Date off. REMARKS. Miles Reading Start. Miles Reading Finish. Miles covered. Total miles. 11-9-30, Lab., 17-9-30, Received charged. 17-9-30, 24EX, 18-10.30., 16650, 17514, 864, 864 18-10.30, ", 29-11-30, 17514, 18182, 668, 1532 29-11-30, ", 5-1-31, 18182, 19093, 911, 2443 5-1-31, , , 19093, No further record kept G.J. 20-4-31 | ||