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of New Malden, maker of silver-zinc batteries, a subsidiary of Venner Time Switches and then Venner Ltd.

The silver-zinc battery was identified as an opportunity by Arthur Albert Rowse; it was widely used in aircraft and guided missiles

1950 The new lightweight type of accumulator was available in 28 sizes^[1]

1954 Venner Accumulators, Ltd. Manufacturers of ultra-lightweight accumulators based on the silver-ziric reaction. Directors: A. A. Rowse, C.B.E., M.I.Mech.E., M.I.E.E. {Chairman), J. M. Brooke, M.I.Mar.E. {Managing). Head Office: Kingston By-pass.^[2]

1959 The silver-zinc accumulator was selling in increasing numbers such that the company made a contribution to group profits^[3] . This accumulator was used to power telemetry equipment in rockets and guided missiles because of its low specific weight.

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