One of the best features of the OnePlus 8 Pro is the support for Warp Charge 30 wireless charging. This proprietary wireless charging technology from OnePlus only works with a specific wireless charger from the company. In return, you have 30W wireless charging which according to OnePlus can charge 50% in just 30 minutes. That’s only a fraction slower than the wired version of the Warp Charge 30, which hits 50% in 23 minutes. The OnePlus 8 Pro also supports Qi but at a much slower charging speed.
Of course, we don’t like to take any company’s claims at face value. Also, full charging is more than just hitting 50% in the picture, as does the time to a full charge. That’s why we’re going to dive into our data on how the Warp Charge 30 wireless and wired compare.
Wired vs Wireless Charging Time
Let’s dive straight into the numbers. Collecting charging data is quite simple, we discharge the phone completely and then track the time it takes for the battery to fill up. We have made sure to turn off optimized charging to see the fastest possible charge time using the technology.
Wired charging is remarkably fast, despite both charging methods having 30W of power. It takes about an hour to fully charge, while wireless charging is about 15 minutes slower. The two charging methods first start out fairly close together up to 30% before charge times gradually diverge for higher efficiencies. Both are also equally slow, rather than the last 10%. We also see that OnePlus claims a 50% charge in just 29 minutes for wireless and 50% charge in 23 minutes for wired hold.
The OnePlus Charging Dock has a built-in fan that helps with heat dissipation by blowing a small amount of air into the back of the phone. It’s whisper-quiet, and I didn’t notice any heating issues while charging wirelessly. If you’re concerned about heat and battery longevity, you can leave OnePlus’ optimized charging setting on to reduce battery load overnight, even while charging wirelessly.
The main thing is that in both the Warp Charge 30 versions your phone will be back up and running in no time. But wired charging is still the fastest for quick top-ups from empty.
I also tested standard Qi charging to see how much slower it is than OnePlus’ Warp Charge 30 Wireless. I didn’t plot the whole time because to be honest it took too long. It’s completely impractical to charge around 10W Qi from a Google Pixel stand for four hours 14 minutes of charge by my estimate. Even after an hour and a half it still could not reach 50%. OnePlus’ proprietary solution is much better for quick top-ups throughout the day, even compared to the fastest 15W Qi solutions.
Why is 30W wireless slower than 30W wireless?
15 minutes doesn’t seem like much, but it’s a significant 25% increase in full charge time over the move to wireless. However, it is not clear why 30W wired charging is significantly faster than 30W wireless charging. The key is understanding that the rating isn’t necessarily related to the power that makes its way to your smartphone.
The wattage rating usually refers to the amount of power consumed by the wall plug, but not all of that power reaches the handset. You can lose power to the transistor and even the wire from the plug to your phone with any charging.
Wireless transfer across the air makes the transmission loss even greater. Conductive transmitter and receiver coils are nowhere near 100% efficient, so power is lost as part of wireless transmission, often in the form of heat. With this in mind, wireless will always be slower than wired for the same power.
Read OnePlus Buyers Guide: Everything you need to know about the brand
Although not as fast as wired charging, the Warp Charge 30 does a decent job with the fast charging speeds that feature wireless. The only drawback is that you’ll have to pay an additional $69.95 for OnePlus’ charging dock if you want wireless charging speeds that are miles faster than standard Qi.