Search results

https://www.toolstation.com/streetwize-power-inverter/p18128?store=TT&utm_source=googleshopping&utm_medium=feed&utm_campaign=googleshoppingfeed&mkwid=_dc&pcrid=&pkw=&pmt=&gclid=CjwKCAjw-b-kBhB-EiwA4fvKrOSn5Pdhl7hmp9Jgim9iv3AWz-5nSkK10mv8Rb6ZZ0DBYJHU-sAShhoCCroQAvD_BwE&gclsrc=aw.ds

I use a 25m camping extension lead with built-in RCD, rated at 16 amps. No problems with granny charger when in use. Only snag is it has a commando plug but a short adapter to 3 pin plug works fine without getting particularly warm. We already had it but easily available at camping shops.

Agreed about the metal to metal problem. I found out when I fitted metal valve caps.

Check your settings. Mine goes dark when the lights come on. I guess there's a switch in there.