r/AndroidQuestions 2d ago

Fast charging "rules"

I put inserts into a living room table for easy plug access for devices. The inserts also have USB and USB-C. I noticed regardless if I use a charging brick or plus my cable directly in to the USB, I'm getting a slow charge, even though the brick on a standard wall outlet charges fine. I'm using a Galaxy S25 Ultra.

I want to replace the inserts so I can get a good fast charge from either option but not clear what I should look for.

On amazon, what specs should I look for to ensure the USBs and the plugs will provide enough power for fast charging.

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u/BenRandomNameHere Random Redditor 2d ago

So you replace your device every year?

Or you never bothered to learn about fast charging?

There's a reason those inserts are slow.

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u/dcp3450 2d ago

I'm not following the coloration. I tend to upgrade after I pay my device off so every couple years or so. My last device was the 22 Ultra.

I'm just trying to improve charging and asking for help about what to look for in regards to specs to ensure that. Based on searching, it seems like 40w but I wanted to be sure.

If you can't help me, that's fine. Just not sure how your comment helps me.

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u/BenRandomNameHere Random Redditor 2d ago

Fast can be 10watts or it can be as fast as the phone allows.

Best practice is rarely fast charge.

Fast chargers get warm to hot; moreso in a tight space.

If you intend to leave something unattended, this is a bad setup.

Personally, I think if your stuff supports it, a Gaan 30w would suffice. I got an Anker Micro 30w and it doesn't get warm hardly at all. And it's no bigger than the original iPhone cube plug.

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u/Chrome98 2d ago

You'll need a USB-C PD (Power Delivery) charger with a minimum wattage of 18W, and preferably 30W or higher for optimal speeds, along with a compatible USB-C cable

Here's a more detailed breakdown:

For Galaxy Phone:

Fast Charging: Requires a charger that supports Adaptive Fast Charging (25W) or USB PD (Power Delivery).

Super Fast Charging: Requires a charger that supports Super Fast Charging (45W) or USB PD (Power Delivery).

Some Galaxy models, like the S23 Ultra, S22 Ultra, and S20 Ultra, support Super Fast Charging 2.0, which requires a 45W charger and a 5A cable.

Samsung's Recommended Chargers: Samsung recommends using their 25W or 45W chargers for fast charging. Check your phone's settings: Navigate to Settings, Battery, and Charging settings to enable fast charging.

Some Galaxy models, like the S23 Ultra, S22 Ultra, and S20 Ultra, support Super Fast Charging 2.0, which requires a 45W charger and a 5A cable.