On a 50 kWh battery, the EV-ACS3210E at its full 32 A setting takes about 8 hours from empty to full, and about 4.5 to 5 hours for the everyday 20–80% top-up. The unit is single-phase, so its ceiling is about 7 kW however strong the circuit is. Turn the current down and the same battery simply charges across a longer window — the figures below show both.
Key Takeaways
- A 50 kWh battery charges from empty to full in about 8 hours on the EV-ACS3210E at 32 A.
- The everyday 20–80% top-up takes about 4.5–5 hours at full power.
- At 16 A the same top-up fits one long night; at 10 A the pace suits topping up, not refilling.
- All figures are labelled arithmetic at 230 V with about 10% allowed for losses and taper; the car can lengthen them.
The Times at Full Power
Every figure in this table is labelled arithmetic: 32 A at 230 V is about 7.4 kW, and roughly 10% is allowed for conversion losses and the slower top end, so about 6.6 kWh lands in the battery per hour. Energy added is the battery size multiplied by the window — 20–80% of 50 kWh is 30 kWh, wherever you charge.
| Charge window | Energy added | At 32 A (about 7 kW, losses allowed) |
|---|---|---|
| Empty to 100% | 50 kWh | About 7.5–8 hours |
| 10% to 100% | 45 kWh | About 7 hours |
| 10% to 80% | 35 kWh | About 5–5.5 hours |
| 20% to 80% | 30 kWh | About 4.5–5 hours |
| One hour plugged in | — | About 6.6 kWh added |
The same sum at other power levels is worked through in our guide to charging time at 7 kW, 11 kW and 22 kW.
Why the Simple Division Runs Long
Dividing 50 kWh by 7 kW assumes full power from the first minute to the last. Two things stretch the real session. The car tapers its charging rate as the battery approaches full, so the last stretch to 100% is the slowest part of any charge — which is why the 20–80% window is so much quicker than the energy alone suggests. And the car’s onboard charger can be the limit before the wall unit is: if the car accepts less than the unit offers, the car sets the time. A cold battery stretches things further, because the car accepts charge more slowly until the pack warms.
The Same Battery at Lower Settings
The EV-ACS3210E adjusts from 10 A to 32 A, and the lower settings exist for supplies that cannot give 32 A — a socket-limited circuit is the usual reason. The same labelled arithmetic, at 230 V with the same loss allowance:
| Setting | Energy per hour | 20% to 80% (30 kWh) | Empty to full (50 kWh) |
|---|---|---|---|
| 32 A | About 6.6 kWh | About 4.5–5 hours | About 7.5–8 hours |
| 16 A | About 3.3 kWh | About 9 hours — one long night | About 15 hours |
| 10 A | About 2.1 kWh | About 14 hours — a weekend pace | About 24 hours |
Read the table as a planning tool, not a defect list. At 16 A the everyday top-up still finishes overnight; at 10 A the car is being kept topped up rather than refilled, which is all a lightly used second car or a holiday-let turnaround may need.
The Unit Behind the Numbers
The EV-ACS3210E is a single-phase Type 2 portable charger: current adjustable from 10 A to 32 A, about 7 kW at the top setting, a 7.5 m cable, IP66 sealing, and an app with energy monitoring — so the kilowatt-hours in these tables are the same numbers the app records after a real session. Why a single-phase unit tops out near 7 kW while three-phase units reach 11 kW and 22 kW is covered in the single-phase vs three-phase explainer.
Frequently Asked Questions
Why can’t this Type 2 charger reach 22 kW like some others?
Because 22 kW needs a three-phase supply and a three-phase unit. The EV-ACS3210E is single-phase, so 32 A on one phase — about 7 kW — is its ceiling on any circuit.
My car shows a longer time than the table. Why?
Usually the car’s onboard charger accepts less than the unit offers, the battery is cold, or the session runs to 100% where charging tapers. The table assumes the car takes the full rate through the middle of the charge.
Is a full 0–100% charge bad for the battery?
Follow your car maker’s guidance on daily charge limits — it varies by model. The windows in the table exist because most drivers top up the middle of the battery rather than running full cycles.
Related Reading
- How Long Does It Take to Charge an EV at 7 kW, 11 kW and 22 kW?
- Single-Phase vs Three-Phase EV Charging: 7 kW, 11 kW and 22 kW Explained
- Smart Charging and Time-of-Use Tariffs: How Scheduling Cuts EV Charging Costs
