Kobold VK 135 wiring - How to change it?

my garage sales find, a vorwerk 135 (pic) need some info.

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fir set 2 motor protection fir (motor fir) + 2 HEPA (micro) firs / microfir / hepafir suitable For Vorwerk Kobold VK 135, 136, VK135, VK136

High-quality power cable / power cable – compatible with Vorwerk Kobold 135 136 – best performance when vacuuming.: : Home & Kitchen

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Vacuum Cleaner for Vorwerk Kobold 135,136,135SC,VK135,VK136 Dust Bag - Hepsiburada Global

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Kobold VK 135 wiring - How to change it?

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Vorwerk Kobold VK 135-1 Battery Wire,Vocuume Cleanner Wire Suitable For VK 136