DA 40W Dual-PD GaN Charger

Specifications

Frequently Asked Questions

Does a higher-wattage charger always charge a phone faster?

Not necessarily. A charger states the maximum it can supply; how much your device actually draws depends on the power it supports, the fast-charge protocol it uses, and whether the cable can carry it.

So we do not judge a charger by peak wattage alone. What your phone, tablet or laptop each need, and whether your cable can keep up, have to line up before fast charging actually happens.

Will a high-wattage charger damage my phone battery?

Under normal conditions, a compatible device draws the power it needs according to its own charging profile and protocol. A charger does not push its full rated wattage into the phone regardless.

That said, charging safety depends on the charger, the cable and the device together. Avoid equipment of unknown origin, damaged connectors, or anything that runs unusually hot. If you notice significant heat, a burning smell, or repeated disconnections, stop using it and check before continuing.

I switched to a fast charger — why is it still slow?

Fast charging is not established by the plug alone. The power your phone supports, its charging protocol, the cable specification, the connector, and how a multi-port charger allocates power at that moment can all affect speed.

If charging is consistently slower than expected, look at all three together: device, charger and cable. This is also why we assess charging gear as a set rather than by any single product’s peak wattage.

Why does charging slow down when I use both ports at once?

Many multi-port chargers allocate power differently for single-port and dual-port use. With two devices connected, the total output has to be redistributed, so one or both may charge more slowly.

This does not necessarily indicate a fault. Check the single-port and multi-port output figures on the product page before deciding which devices to charge together — that tells you more than the combined wattage alone.