What Is a 13A Portable EV Charger?
A 13A portable EV charger (also known as a granny charger) plugs into a standard UK household socket and delivers up to 3kW of charging power. It’s the most flexible charging option for drivers who need a simple, portable solution without installing a wallbox.
Key Features of Our 13A Portable EV Chargers
- Fully compatible with all Type 2 electric vehicles
- Safe charging with built‑in temperature, surge protection and RCD
- Ideal for home, workplace, and travel use
- Durable cables designed for long‑term reliability
- UK‑ready 3‑pin plug with thermoplastic materials
- Lightweight and easy to store in your boot
How Fast Is a 13A Portable EV Charger?
A 13A charger typically adds around 10–15 miles of range per hour, depending on your vehicle. While slower than a wallbox, it’s perfect for trickle charging or topping up when you’re away from home.
How to Choose the Right 13A Portable Charger
- Cable length: 5m, 7m, 10m or 15m depending on driveway layout. You want the cable to run loosely along the ground to avoid trip hazards
- Safety features: temperature monitoring, RCD protection, waterproof and many more
- Portability: lightweight and storage case provided
- Vehicle compatibility: ensure Type 2 connection
- Warranty: look for at least 2 years
Compare 13A & 16A Portable Chargers using our guide and discover, which is right for you!
FAQs About 13A Portable EV Chargers
Can I use a 13A charger in any UK socket?
Yes — as long as the socket is in good condition and not overloaded. Check that your socket is rated 13A not 10A. If it is 10A only use the 10A setting or lower
Is a 13A charger safe for daily use?
Yes, provided it includes proper safety protections and you avoid extension leads. All Third Rock Energy Portable EV Chargers are rigorously tested and comply with UK safety conditions - Check out Safety Requirement Guide here
How long does a full charge take?
Divide your car battery size by 3 to calculate the full charging time from 13A
