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 appendix to a handbook detailing battery maintenance points and useful tools.
| Identifier | ExFiles\Box 26\2\ Scan192 | |
| Date | 2nd August 1920 | |
| P.D. Shts (100 T) (S.G. 643, 19-2-20) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2518 To EFC. from R.{Sir Henry Royce} c. to CJ. c. to Mr. Walker. X 995 R2/G2.8.20. X.995. RE ELECTRICAL APPENDIX TO HANDBOOK. X.664 Very few people realise the value of the following points:- "Whenever convenient, wash the battery down with water to remove the acid, and let it dry before putting it back in the outer case. This is especially valuable after recharging re refilling. It will reduce the leakage of the charge". "If it is found to be difficult to maintain the battery in a well charged condition, we strongly recommend a small current of about one ampere be allowed to run through it in a charging direction while standing in the garage. This can be done via the connection socket for the pilot lamp." Further. R.{Sir Henry Royce} The most useful apparatus to have on a car is a small portable voltmeter one can quickly find by this were the voltage is lost in case of a circuit failing to function, failing a voltmeter use the portable lamp. Another, extremely useful thing for night work to carry is the usual inexpensive electrical torch hand lamp being extrmeely handy and safe from fire risks. R.{Sir Henry Royce} | ||