baldguyfromblackpool
- Dec 18, 2025
- 28
- Joined
- Dec 18, 2025
- Messages
- 28
I have a Zappi EV charger which is working fine when I plug my BYD car into it, but when Mrs Baldguy plugs her MG into it, all sorts of crazy happen.
I've been through many menus and manual chapters trying to figure out what's wrong but nothing has worked so far. What I -have- noticed though is that very often when she tries to charge, the lights throughout the house often dim momentarily as if a sudden very high load is being imposed.
It's always very fleeting though, and the normal reporting screens for the car, Zappi and solar/battery system feeding them, have nowhere near enough temporal resolution to show any detail.
I'm looking for some kind of minimally invasive, maybe CT-based logging device, that I could use to record the current draw on the Zappi's single phase feed, and subsequently (or in realtime) display it as a graph, current v time.
I've seen a few full blown oscilloscope/multimeter/loggers costing up into the multiple hundreds of pounds and beyond but really I don't want to spend so much on a device I'll probably only use once. Is there something cheap that would maybe connect to a laptop or phone over WiFi / USB? I'm thinking of a sub £50 budget.
Accuracy probably isn't a paramount concern. Just something that can give me a good clear visual window into what's happening over the course of a few seconds, with the current flow?
In an ideal world a box with a CT clamp on a flying lead, and a big LCD with a continually updated graph display of the last five seconds in 0.25 second samples would be perfect. But to keep cost down, data sent to a laptop that I could then homebrew a graph in python would be ok?
I've been through many menus and manual chapters trying to figure out what's wrong but nothing has worked so far. What I -have- noticed though is that very often when she tries to charge, the lights throughout the house often dim momentarily as if a sudden very high load is being imposed.
It's always very fleeting though, and the normal reporting screens for the car, Zappi and solar/battery system feeding them, have nowhere near enough temporal resolution to show any detail.
I'm looking for some kind of minimally invasive, maybe CT-based logging device, that I could use to record the current draw on the Zappi's single phase feed, and subsequently (or in realtime) display it as a graph, current v time.
I've seen a few full blown oscilloscope/multimeter/loggers costing up into the multiple hundreds of pounds and beyond but really I don't want to spend so much on a device I'll probably only use once. Is there something cheap that would maybe connect to a laptop or phone over WiFi / USB? I'm thinking of a sub £50 budget.
Accuracy probably isn't a paramount concern. Just something that can give me a good clear visual window into what's happening over the course of a few seconds, with the current flow?
In an ideal world a box with a CT clamp on a flying lead, and a big LCD with a continually updated graph display of the last five seconds in 0.25 second samples would be perfect. But to keep cost down, data sent to a laptop that I could then homebrew a graph in python would be ok?
