Sigenergy EV Chargers Explained: Sigen AC Charger vs DC Charging Module

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Sigenergy makes two very different EV chargers, and searches for “Sigenergy EV charger” mix them up all the time. One is a normal 7 kW home charger. The other is a DC charging module that plugs into the SigenStor battery stack itself. Here is what each does, and which one most homes actually need.

Option 1: the Sigen EV AC Charger (7 kW)

This is a single phase 7 kW smart charger, available with a tethered Type 2 cable or as a socket. It is the sensible choice for most households.

  • Same app as your battery. It is controlled in mySigen, so your solar, battery and car charging are all in one place.
  • Solar surplus charging. It can charge the car from spare solar instead of exporting it.
  • Tariff scheduling. Sigen AI Mode can schedule charging around cheap rates on smart tariffs.
  • Built for UK rules. Sigenergy’s current datasheet lists built-in PEN fault protection and DC fault detection, which can reduce the extra equipment needed on site.
  • Outdoor rated. IP65 and IK10, so it can live on an outside wall.

Dynamic load management needs either a Sigenergy home energy system or a Sigen Power Sensor. If you do not have a SigenStor, a charger such as the myenergi zappi may still be the better fit, and we fit both.

Option 2: the SigenStor EV DC Charging Module

This is the clever one. Instead of being a separate box on the wall fed from your consumer unit, the DC module connects to the SigenStor’s DC bus, between the solar, battery and controller. That means solar and battery energy can go into the car as DC, without being converted to AC and back again.

  • Rated at 12.5 kW or 25 kW, with a CCS2 connector
  • Designed for bidirectional charging, so it can support vehicle to home (V2H) and vehicle to grid (V2G)
  • Works with single and three phase SigenStor systems, depending on the model

V2H and V2G: what is real today?

The idea is brilliant: your car’s battery, often three to six times larger than a home battery, powers the house in the evening or sells energy back to the grid. Sigenergy itself is clear that vehicle to everything depends on the car, the software, the standards and regional support. In the UK today, only some vehicles support it and the arrangements are still developing. We see the DC module as future-ready rather than something to buy for V2H alone right now.

Which Sigenergy charger do you need?

You are…Our suggestion
A typical household charging overnight and from solarSigen 7 kW AC charger, or a zappi
Already getting a SigenStor and want one app for everythingSigen 7 kW AC charger
A high-mileage driver who needs faster home chargingTalk to us about the DC module
Keen on V2H with a compatible car, and planning aheadDC module, with clear expectations on what works today

Warranty

Sigenergy’s warranty on the DC charging module is shorter than the 10 years on its battery and controller. We confirm warranty terms for every product on your quote, and every installation carries our own workmanship warranty and an IWA insurance-backed guarantee.

Getting the most from solar, battery and EV together

The real savings come from the three working together: solar charging the battery and car in the day, cheap overnight rates topping them up, and the battery covering the evening peak. We cover this in more depth in our guide to the SigenStor battery, and in our general EV charger installation page.

Talk to a local installer

We are MCS certified and fit Sigenergy batteries and EV chargers with our own employed teams across Dorset, Hampshire and Wiltshire. Visit our Sigenergy installer page or request a free quote.

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