Instructions on correctly charging the vehicle's battery.
| Identifier | ExFiles\Box 26\2\ Scan290 | |
| Date | 16th May 1928 guessed | |
| -2- Contd. gassing. It is necessary to be quite certain that the charging current is flowing into the battery in the correct charging direction. It is possible to charge the battery in position on the car, making use of a flexible lead and two-pin plug, which fits the socket in the switchbox. The other ends of the flexible lead must be connected to the charging board terminals in such a way that the chassis ammeter indicates "charge" when the current is switched on. The chassis charging switch should be left "off". Another method of securing correct direction of current is to place the plug pins in contact with pole-finding paper, and arrange that the polarity shown is in agreement with that at the plug socket, the positive being on the right; but whichever way it is done, be certain that the direction is correct. In the absence of experience, or in any uncertainty, an electrical expert should be consulted. Avoid overcharging the battery, either in quantity or time, except at "trickle" rate, as described below. Charging in the garage from an external source, with the battery in position on the car, is strongly recommended where conditions of running are such that a heavy demand is made on the battery, for instance, where much night-running is done. Where it is a frequent occurrence for the car to | ||
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).