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).
Electrical experimental record chart for testing an EcclesX Battery (159).
| Identifier | ExFiles\Box 54\2\ Scan209 | |
| Date | 1st July 1925 | |
| X46172. ELECTRICAL EXPERIMENTAL RECORD CHARTS. X. No.: 4617 EcclesX Battery (159) Date on. | Location. | Date off. | REMARKS. | Miles reading start. | Miles reading finish. | Miles covered. | Total Miles 1-7-25 | Lab. | 21-7-25 | Received dry - Letter EFC {E. Fowler Clarke - Electrical Engineer} /JT 23-6-25 First charge commenced 8-7-25. 440 amp hrs. First discharge at 8 amps 21-7-25 | M.S. | 1-1-26 | 103 lbs weight 1-1-26 | 98NH | 5-2-26 | | 1591 | 1928 | 337 | 337 5-2-26 | 98NH | 3-3-26 | Discharged PAR - weakness Exide + weakness on cadmium. | 1928 | 2813 | 885 | 1222 29-3-26 | Bench Test. | 30.3.26 | Low Rate Discharge @ 1.80w gave 74.7 ampere hours Weight 100 lbs. 7-4-26 | Bench Test | 7-4-26 | High Rate Discharge - 100a Report JCIR. 7-4-26 17-4-26 | 98NH | 4-6-26 | | 3960 | 5798 | 1838 | 3060 4-6-26 | 98NH | 2-7-26 | | 5798 | 6639 | 841 | 3901 2-7-26 | " | 27-8-26 | | 6639 | 9335 | 2696 | 6597 | ||