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).
Letter from Britannia Batteries detailing the specifications and dimensions of various German-made nickel-cadmium starter batteries.
| Identifier | ExFiles\Box 164\4\ img216 | |
| Date | 4th November 1935 | |
| BRITANNIA BATTERIES Ltd HEAD OFFICE & WORKS: UNION ST.{Capt. P. R. Strong}, REDDITCH, WORCS. PERTRTIX TRADE MARK Messrs. Rolls-Royce Ltd., DERBY. YOUR REF. Hs{Lord Ernest Hives - Chair}/Wst/19/MA OUR REF. SM/LHG/W. PLEASE QUOTE SUBJECT: NICKEL CADMIUM BATTERIES. TELEPHONE: Redditch 155/158 TELEGRAMS: Britanicus Redditch CABLEGRAMS: Britanicus Redditch CODES: A.B.C. 5th & 6th Ed{J. L. Edwards} and Rudolf Mosse 4th November 1935 86122 Dear Sirs, We acknowledge receipt of your letter of the 1st November and wish to thank you for the information given. We do not know exactly what the result of your investigations were in connection with nickel - cadmium starter batteries, but batteries which have actually been manufactured and put into service by our Associated Company in Germany bear the following relations of dimensions to capacity: (1) 6-volt, 64 ampere hour at the 10 hour rate of discharge - 8.85" x 7.125" x 9.5" high. (2) 6-volt, 74 ampere hour at the 10 hour rate of discharge - 10.25" x 7.125" x 9.5" high. (3) 12-volt, 42 ampere hour at the 10 hour rate of discharge - 12.25" x 7.125" x 9.5" high. (4) 12-volt, 53 ampere hour at the 10 hour rate of discharge -14.5" x 7.125" x 9.5" high. (5) 12-volt, 64 ampere hour at the 10 hour rate of discharge - 20" x 7.125" x 9.5" high. You will observe upon comparison, that the above capacities and sizes do not vary very greatly from the corresponding voltages and capacities of lead acid batteries, and we should be pleased to have your comments as to whether these figures compared with the data of your own findings which you refer to. I.324/25,000/10/35 DEPOTS AT PRINCIPAL TOWNS THROUGHOUT THE COUNTRY. | ||