What's the maximum charging speed for the Samsung Galaxy Tab S9 with the OnePlus 80W SUPERVOOC Power Adapter?

Up to 45W via Super Fast Charging 2.0, assuming you're using an adequately rated cable.

Do I need a special cable for this combination?

Any standard USB-C cable rated 3A or higher works fine — no special "e-marked" cable needed at 45W.

Will the OnePlus 80W SUPERVOOC Power Adapter unlock the Samsung Galaxy Tab S9's full fast-charging speed?

No — only the Samsung Galaxy Tab S9's own official charger and cable reach its full 45W ceiling. The OnePlus 80W SUPERVOOC Power Adapter still charges it safely, just at the lower 45W fallback speed.

Does the OnePlus 80W SUPERVOOC Power Adapter Fast-Charge the Samsung Galaxy Tab S9?

Yes, but only in fallback mode — 45W via Super Fast Charging 2.0, not the device's fastest proprietary protocol.

The OnePlus 80W SUPERVOOC Power Adapter doesn't speak the Samsung Galaxy Tab S9's fastest protocol (Super Fast Charging 2.0, up to 45W) — instead they fall back to the universal Super Fast Charging 2.0, negotiating 45W. That's still real fast charging, just not the device's absolute ceiling.

The details

Device	Samsung Galaxy Tab S9
Charger	OnePlus 80W SUPERVOOC Power Adapter
Negotiated wattage	45W
Protocol	Super Fast Charging 2.0
Match quality	Fallback

How your cable affects this

The wattage above assumes an adequately rated cable. Here's what actually happens with three common cable situations:

Cable	Real wattage	Cable-limited?
Standard 60W-rated cable (3A, not e-marked)	45W	Not the bottleneck
100W / 5A e-marked cable	45W	Not the bottleneck
Unrated / unknown cable (assume worst case)	40W	Cable-limited

Not sure what cable you have? See our cable ratings guide →

Frequently asked questions

What's the maximum charging speed for the Samsung Galaxy Tab S9 with the OnePlus 80W SUPERVOOC Power Adapter?: Up to 45W via Super Fast Charging 2.0, assuming you're using an adequately rated cable.
Do I need a special cable for this combination?: Any standard USB-C cable rated 3A or higher works fine — no special "e-marked" cable needed at 45W.
Will the OnePlus 80W SUPERVOOC Power Adapter unlock the Samsung Galaxy Tab S9's full fast-charging speed?: No — only the Samsung Galaxy Tab S9's own official charger and cable reach its full 45W ceiling. The OnePlus 80W SUPERVOOC Power Adapter still charges it safely, just at the lower 45W fallback speed.

Other chargers compatible with the Samsung Galaxy Tab S9

See the full Samsung Galaxy Tab S9 charging guide →

Other devices compatible with the OnePlus 80W SUPERVOOC Power Adapter

See the full OnePlus 80W SUPERVOOC Power Adapter compatibility list →

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