The current MG HS Super Hybrid carries a 24.7 kWh battery and claims 120 km of electric range on the WLTP cycle — a large pack for the segment, and an honest test standard. What MG does not offer is a capacity guarantee: the 7-year, 150,000 km warranty covers defects, and publishes no percentage below which MG will act.
The pack
| Variant | Years | Battery (gross) | Electric range | Cycle |
|---|---|---|---|---|
| HS Super Hybrid | 2025–2026 | 24.7 kWh | 120 km | WLTP |
Credit where due: MG quotes WLTP, not NEDC, so the 120 km figure is more believable than the NEDC ranges quoted by some rivals. Expect real-world electric driving in the 90–100 km region in mixed use.
An earlier plug-in HS — badged HS Plus EV — was sold from 2021 with a smaller pack and a much shorter electric range. It is a different battery under different, older MG warranty terms, and the two should not be confused in listings.
What "no capacity guarantee" means on a plug-in
A PHEV pack does something close to a full cycle every day it is plugged in. That is the duty cycle that ages a lithium battery fastest. On a car with a 70% floor, gradual loss beyond that is the manufacturer's problem inside the warranty period. On the HS, gradual loss is — on the published terms — not a defect, so it is yours.
That does not make the car a bad buy. It makes a dated, independent measurement of the pack the only benchmark you will have, and it makes the previous owner's charging pattern a real part of the price. Full terms: MG battery warranty in Australia.
What the assessment covers
The pack's reported State of Health, cell-group voltage spread, temperature behaviour and any stored or pending high-voltage fault codes. On a plug-in, the spread between cell groups is the earliest signal of a pack that is ageing unevenly.
What to check before you buy
Which HS plug-in — the current Super Hybrid or the earlier HS Plus EV
Measured State of Health and cell voltage spread, with no published floor to lean on
First registration date, which decides which MG terms apply
How often it was charged — daily deep cycling is the hardest life for this pack
MG ZS EV · MG4 · Book a test — $249
Battery capacity and WLTP range from MG Australia. Warranty terms from MG Australia. Verified 15 September 2026.