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Many flagship phones have wireless charging, but few have the ability to reverse charge other devices. But Samsung phones have had the technology for a few years, albeit branded as Wireless PowerShare. This article will cover everything you need to know about it.
What is Wireless PowerShare?
Wireless PowerShare is an innovative feature in Samsung’s latest flagship products since the Galaxy S10. At its core, it’s a reverse wireless charging technology that allows you to turn your device into a power station. Allows your Galaxy phone to wirelessly recharge other smartphones and accessories such as smartwatches and headphones that support Qi technology, a common industry standard for wireless charging.
What devices are compatible with Wireless PowerShare?
Not all Samsung phones have Wireless PowerShare. Currently, it is limited to the latest Galaxy flagships. If you want to try the technology, you’ll need a device that supports it. The list of compatible phones includes:
- Samsung Galaxy S10 series
- Samsung Galaxy Note10 Series
- Samsung Galaxy S20 series (including S20 FE)
- Samsung Galaxy Note20 Series
- Samsung Galaxy Z Flip and Z Flip 3
- Samsung Galaxy Z Fold, Z Fold 2 and Z Fold 3
- Samsung Galaxy S21 series (including the S21 FE)
- Samsung Galaxy S22 series
In addition to Samsung phones, you can get reverse wireless charging from devices like the Google Pixel 6 Pro and OnePlus 10 Pro. On those devices, it’s simply called “reverse wireless charging” instead of Wireless PowerShare.
RELATED: The best Samsung phones of 2022
How to use Samsung Wireless PowerShare
Samsung Wireless PowerShare is very easy to use. Whether you want to reverse charge another phone, a pair of headphones, or a smartwatch, head into the Settings app and navigate to “Battery and device care.”
Select “Battery.”
Then tap on the “Wireless Power Sharing” menu option.
Toggle the button to enable the option.
Alternatively, you can toggle the feature on by swiping down from the top of the screen to open the notification panel and selecting Wireless PowerShare.
Once you’ve done all that, turn your Galaxy phone upside down and place the device you need to charge centrally on the back of the phone. The charging process will start automatically if the devices are correctly aligned.
If the second device doesn’t start charging immediately, readjust the placement so the charging coils are aligned. You may also need to remove the case from both devices for a successful charging experience.
How fast is Wireless PowerShare?
Wireless PowerShare is not fast by any means. In numerical terms, Samsung phones with Wireless PowerShare can produce up to 4.5W of power. But considering that wireless charging technology is not as efficient as wired charging, secondary devices will likely receive less power. So don’t expect to fill a friend’s phone with zero charge – it’s great for recharging headphones, smartwatches or other Bluetooth-enabled accessories, especially when you’re traveling and forget to bring extra chargers.
Also, your phone’s power loss is not equal to the power gain in your secondary device. In other words, if your Galaxy smartphone loses 15% power, the other device won’t get the same 15%. This is because your phone’s power has to pass through the glass back cover and the case of the item being charged (which can be plastic or glass). The result is that these insulating materials dampen the flow of electrons, making the entire process inefficient and wasting precious battery juice.
If it’s any consolation, you can use Wireless PowerShare while your Galaxy phone is plugged into a power outlet, so you don’t have to worry too much about draining your battery. However, it will recharge at a slower rate.
It’s also worth noting that Wireless PowerShare will automatically stop when your phone’s battery drops to a certain level. But you can control this by selecting the threshold in the Settings app – you can choose between 30 and 90%.
Is Wireless PowerShare bad for your phone’s battery?
Whether or not your phone is damaged by using Wireless PowerShare depends on how you use it. Wireless PowerShare generates a lot of heat, which is one of the main causes of battery wear. You don’t have to worry if you use it from time to time to recharge your earphones or smart watch. However, if you use it regularly, your phone’s battery life will suffer in the long run.
Also, the feature is not practical for frequent use, especially due to highly disproportionate battery drain. So it’s best to just use a cable and charger for everyday scenarios and limit Wireless PowerShare to emergencies or travel.
The best phone chargers of 2022 
TECKNET 65W PD 3.0 GaN USB C Charger Type C Charger 3-Port Fast Wall Charger Foldable Adapter Compatible for iPhone 13 Pro Max/13 Pro/13/13 Mini, MacBook Pro, iPad Pro, Switch, Galaxy S21/S20
Apple 20W USB Type-C Power Adapter
Amazon Basics 100W Quad-Port GaN Wall Charger with 2 USB-C Ports (65W + 18W) and 2 USB-A Ports (17W), White (Non-PPS)
Anker Wireless Charger, Wireless Charger 313 (Pad), 10W Max Qi Certified for iPhone 12/12 Pro/12 mini/12 Pro Max, SE 2020, 11, AirPods (No AC Adapter, Not Support MagSafe Magnetic Charging)
USB C Car Charger 48W Super Mini AINOPE All Metal Fast USB Car Charger Adapter PD&QC 3.0 Dual Port Compatible with iPhone 13 12 11 Pro Max X XR XS 8 Samsung Galaxy Note 20/10 S21 / 20/10 Google Pixel
Techsmarter 11-port charging station with five 100W USB-C PD ports, 25/45W PPS, five 18W USB-A ports and 15W detachable wireless charging pad. Compatible with MacBook, iPad, iPhone, Samsung, Dell, HP, Yoga…
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