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Hornby R7377 HM7070 – Power Bank

Hornby R7377 HM7070 – Power Bank

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Hornby R7377 HM7070 – Power Bank

Please ensure that your smart device is able to download the HM | DCC app prior to the purchase of any HM7000 products.   Learn More

For information on how to get started with HM7000 and the HM | DCC app, please visit here for Text-Based Tutorials, Instruction Manuals and Profile Function Maps.

Or simply click here to follow our YouTube Tutorials.

Product Info

The HM7070 Power Bank will keep locomotives running over any potential dead spots. It works in a similar way to ‘stay alive’ or capacitors which are available from other manufacturers.

Use the HM7070 can be connected into the current range of HM7000 DCC Bluetooth decoders and sound decoders. A simple plug and socket means there’s no wiring required!

Why use one?

Your layout will occasionally suffer from dirty track or small electrical dead spots at points and crossings. The small loss of power can cause locomotives to stop, but with DCC Sound Decoders it can also cause the sounds to reset and restart.  Avoid both issues with the HM7070 Power Bank – you’ll have a few seconds of saved power to keep your locos going over that dead spot.


(The Power Bank is not suitable for use without an HM7000 decoder, connecting it directly to other decoders or directly to the wiring of a model locomotive may cause damage to the Power Bank)

What’s Inside

1 x Power Bank for use with HM7000 Decoders.

Tech Specs

Item Length – Without Packaging (cm)
Item Height – Without Packaging (cm)
Item Width – Without Packaging (cm)
Item Weight – Without Packaging
Number of Parts

Additional information

Weight 50 g




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