Not directly. Load balancing never pushes a charger above its rated current. What it does is let a charger use whatever spare capacity your home or building has at any moment, instead of being set permanently to a low “safe” current. In practice that often means faster average charging, because the charger runs at full power whenever the house is not using much electricity and only throttles back during peaks.
With and Without Load Balancing
| Situation | Without load balancing | With load balancing |
|---|---|---|
| Home with limited panel capacity | Charger fixed at a low current, e.g. 24 A | Up to 40 A when the house is quiet |
| Two chargers on one circuit | Each fixed at half | Full power to one car when the other is done |
| Building with many chargers | Expensive service upgrade | Power shared across ports |
Types of Load Balancing
- Dynamic (home): a CT clamp measures household current; see will an EV charger work without a CT clamp.
- Power sharing: several chargers share one circuit.
- Site management: a building controller or software allocates power across many ports; see OCPP explained.
For the technical details, see dynamic load balancing for wallbox chargers.
Hardware
The dual-gun EVDANCE EV-AC03201T dual-gun AC charging station shares up to 43 kW between two vehicles automatically. Home wallboxes such as the EVDANCE EV-ACT3204E 22 kW wallbox support load management with a CT sensor.
Frequently Asked Questions
Will load balancing slow my charging?
Only when the house or site is near its limit; otherwise it allows full power.
Do I need load balancing?
If your panel is tight or you share power between chargers, it helps.
Is load balancing the same as power sharing?
Power sharing is one form of load balancing between chargers.
Related Reading
- Dynamic Load Balancing
- What Size EV Charger Can I Have at Home?
- Will an EV Charger Work Without a CT Clamp?
Key Takeaways
- Load balancing never exceeds the charger rating.
- It allows higher average charging by using spare capacity.
- It avoids many service upgrades.