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 on battery maintenance, cleaning, and testing procedures.
| Identifier | ExFiles\Box 26\2\ Scan062 | |
| Date | 1st April 1917 | |
| -22d- Contd. screwed up. (But do not use abrasives for cleaning, e.g. File, emery paper, sand paper). Do not allow metal tools or other metal to short circuit across any terminals of the battery. Do not inspect the battery with the aid of a naked light. A useful adjunct in connection with keeping the top of the battery free from spilt acid is a small sponge, which should be used in conjunction with a bowl or bucket of water to remove the acid from the top of the battery. Do not allow acid which is to go into the battery to be put in a metal vessel. Do not "short" the battery to see if it is charged. See that vent plug passages are kept clear. There is no voltmeter provided on the electrical system as this is not considered necessary. Even if a battery may be run down, or one cell of the battery be faulty, (leaky or internally short circuited) it may indicate full voltage on a voltmeter and the best method of ascertaining that the battery is alright is to switch the lights on for a few minutes and note if any appreciable gradual fall in intensity occurs. If this does happen then individual cells may be tested with a pocket voltmeter while the battery is still discharging to ascertain which cell is at fault. Owing to the bolted up connections it will always be possible to have a new cell to replace a cell of the battery which is faulty for any reason, although it is not considered likely that any one cell should become R.R.(S.D.) 408. 2m.4.17(?) Bm. 2/156/13. Contd. | ||