Oppo A33

The Oppo A33 houses a 2400mAh Li-Ion cell — a compact battery that prioritizes device thinness over endurance. Power users will likely need to charge before the end of a full day.

Wired charging tops out at 18W (Qualcomm Quick Charge). While not the fastest, it keeps charging times reasonable for overnight or desk-charging habits. Specifically, 0-50% takes approximately 60 min minutes, with a full charge completing in around 120 min minutes.

The charging ecosystem extends beyond basic fill-ups: battery health management (Basic). The battery health features are particularly noteworthy — they help maintain long-term battery capacity by intelligently managing charge cycles, meaning the Oppo A33 should hold its charge capacity better over 2-3 years of ownership.

A charger is included in the box — a welcome inclusion that many flagships have dropped. This means you can achieve the full advertised charging speed out of the box without buying a separate adapter.