How we calculate charger compatibility

The recommendations in our articles are generated by a deterministic compatibility engine rather than laboratory measurements. For each phone-charger pair, we compare technical specifications from official data sheets and calculate the actual charging speed.

What we consider

Supported charging protocols: USB Power Delivery, PPS, SUPERVOOC, VOOC, UFCS, Quick Charge, AFC, SCP.
Maximum phone input power and power limits for individual protocols.
PPS voltage windows (voltage x current) and cable requirements (3A up to 60 W, 5A cable with an E-Marker chip above 60 W).
Charger power allocation in multi-port scenarios (worst-case scenario when multiple devices are connected).

Where the speed percentages come from

The charging speed percentage is the ratio of the power the charger can actually deliver to a given phone to the maximum input power of that phone. If a phone uses a proprietary protocol (e.g., SUPERVOOC) and the charger does not support it, the phone switches to a safe, lower-power USB Power Delivery mode (fallback).

Fallback mode

Phones with proprietary charging reach full power only with the manufacturer's dedicated charger. With a standard USB-PD charger, the power is limited to the fallback value indicated in each article. We disclose this value clearly to avoid misleading anyone.

Data sources

We verify charging and battery specifications against official manufacturer documentation and independent tests. Each article includes a sources section with direct links.

Publisher and editorial team: DEKO Electronics.

All phones in one table: Phone charging database: max watts, protocol and the right charger