---
title: "vivo X300 Pro 40W Wireless Charging Test and Compatibility"
canonical: "https://x300profieldnotes.com/40w-wireless-charging/"
description: "Everything you need to know about the 40W wireless charging speeds and compatibility on the vivo X300 Pro."
---

# vivo X300 Pro 40W Wireless Charging Guide

> Everything you need to know about the 40W wireless charging speeds and compatibility on the vivo X300 Pro.

Wired charging is great for a quick top-up, but for convenience at a desk or bedside table, wireless charging is unmatched. The [vivo X300 Pro](/vivo-x300-pro-review/) supports fast **40W wireless charging**, but hitting those peak speeds requires specific hardware.

Here is my breakdown of how wireless charging performs on the [6,510 mAh Silicon-Anode cell](/battery/).

## Reaching the 40W Wireless Peak

Unlike standard Qi wireless chargers that max out around 15W, vivo's 40W speed requires proprietary technology.

To hit the 40W maximum, you must use the **official vivo 50W Vertical Wireless Flash Charger** (or the older 50W model designed for the X Fold/X100 series). When placed on this specific stand:
- **0 to 50%:** Takes roughly 32 minutes.
- **0 to 100%:** Takes about 1 hour and 15 minutes.

For a battery packing 6,510 mAh of capacity, charging to full wirelessly in just over an hour is genuinely impressive and beats the wired charging speeds of rival flagships like the [iPhone 17 Pro Max](/vs/iphone-17-pro-max/) or [Samsung Galaxy S26 Ultra](/vs/samsung-galaxy-ultra/).

## Standard Qi Compatibility

If you don't want to buy vivo's official wireless stand, you can still use standard Qi wireless chargers. 
- The X300 Pro falls back to standard Qi speeds (usually between 10W and 15W) on third-party pads.
- At 15W, charging the massive silicon-carbon battery from 0% to 100% will take **nearly 3.5 hours**. 
- Therefore, standard Qi chargers are perfectly fine for overnight charging on your nightstand, but entirely impractical if you need a quick top-up during the day.

## Reverse Wireless Charging

The X300 Pro also supports **reverse wireless charging**. You can turn the back of the phone into a charging pad to juice up your wireless earbuds or a friend's dying phone. 

To enable this:
1. Go to `Settings > Battery > Reverse Wireless Charging`.
2. Toggle it on.
3. Place the secondary device squarely on the center of the X300 Pro's back panel.

The output speed is relatively slow (usually around 5W to 7.5W), so it is best used in emergency situations or for small accessories like earbuds, rather than trying to fully charge another smartphone.

Cable charging benchmarks, heat throttling data, and everyday gear recommendations are detailed in our [90W FlashCharge Speed Test](/90w-flashcharge/), [Battery Endurance Review](/battery/), and [Accessories Guide](/accessories/).