London Underground battery–electric locomotives

what is it?

London Underground battery-electric locomotives are battery locomotives used for hauling engineers' trains on the London Underground network where they can operate when the electric traction current is switched off. The first two locomotives were built in 1905 for the construction of the Great Northern, Piccadilly and Brompton Railway, and their success prompted the District Railway to buy two more in 1909, which were the only ones built to the loading gauge of the subsurface lines. Following this, a number of battery vehicles were built by converting redundant motor cars, with the batteries placed in the unused passenger compartment.

spec sheet

built

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number built

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kind

metro

traction

battery

origin

🇩🇪 Germany

builders

Kiepe Electric

top speed

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power

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From the Wikipedia infobox and Wikidata. Blank means the sources don't say.