Digital & Electronics

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Smart Power Pack (SPP) Energy buffer

by Train-O-Matic

SPP Powerpack Energy Buffer

A very affordable Powerpack with super capacitor, giving you several seconds of extra power to keep on running on dirty tracks.

Connects to all Train-O-Matic decoders, ESU decoders with connection for a PowerPack (read more for CV settings at bottom of this page), Lenz Gold with USP connection and any decoder supporting the three wire connection for an energy buffer.

For instructions, follow the manual of your decoder. For Train-O-Matic see higher on this page.

There are two version:

SPP - Supercapacitor is fitted on top of board

SPP-N - A smaller supercapacitor is fitted behind the board.

In real world use, both supercapacitors give a few seconds of extra power, no matter its size.

For instructions, follow the manual of your decoder. For Train-O-Matic see higher on this page.


Size: ca 21 x 10 x 13.5 mm

Size Supercapacitor: 8.2 x 12 mm


Size (inc. capacitor): ca 33 x 9.4 x 6.5 mm

Size Supercapacitor: 6.5 x 11.8 mm

SPP Powerpack with ESU Lokpilot/Loksound v4 + v5

The Train-O-Matic SPP’s are fully compatible with ESU decoders. You’ll need to change some CV settings, which are not in the ESU manual. You can read them by clicking here.


If you want to replace the default supercapacitor of a Powerpack of any brand that has a Powerpack connection (the 3 wires solution)

Micro Supercapacitor


Optionally a smaller supercapacitor is available to replace a Train-O-matic SPP, ESU PowerPack or Lenz Power1 supercapacitor to fit in tight spaces.

1 x 1F Supercapacitor 2.7V Radial

Size: 6.5 mm x 11.8 mm

Nano Supercapacitor


The smallest supercapacitor on the world is the Tramfabriek nano supercapacitor. This will give you about one second of additional power. Enough to keep the engine running, light on and the sound going.

1 x 300mF Supercapacitor 2.7V Radial

Size Nano Supercapacitor: 4 mm x 12 mm

Sizes in comparison:

ESU - 8.2 x 14 mm

Train-O-Matic - 8.2 x 12 mm

Mini - 6.5 x 11.8 mm

Nano - 4 x 12 mm