Best Power Bank for Samsung S24 Ultra (Tested 2026)

The best power bank for the Samsung Galaxy S24 Ultra is the Anker 737 Power Bank (PowerCore 24K), which fully supports Samsung’s 45W Super Fast Charging 2.0 protocol and can charge the device from 0% to 65% in just 30 minutes.

The Samsung Galaxy S24 Ultra remains one of the most powerful smartphones on the market in 2026, featuring a stunning 6.8-inch display and the high-efficiency Snapdragon 8 Gen 3 for Galaxy chip. However, even with its optimized 5,000mAh battery, heavy users—vloggers, gamers, and business professionals—often find themselves in need of a mid-day juice boost.

Samsung’s charging technology is notoriously specific. To get the maximum 45W wired charging speed, you need a power bank that supports Programmable Power Supply (PPS). Without it, your “high-speed” 100W laptop charger might only charge your S24 Ultra at a sluggish 15W or 25W. We’ve tested dozens of the latest portable chargers to find the ones that genuinely trigger the “Super Fast Charging 2.0” logo and offer the best reliability.

Samsung Galaxy S24 Ultra Charging Specifications

Before we look at the top picks, it’s important to understand the technical requirements of the S24 Ultra.

Battery Capacity: 5,000 mAh
Max Wired Charging Speed: 45W (requires PPS 4.05A at 11V)
Wired Protocol: USB Power Delivery (USB-PD) 3.0 with PPS
Wireless Charging: 15W (Qi)
Reverse Wireless Charging: 4.5W (Wireless PowerShare)

To achieve the full 45W, your setup must include:

A power bank with a USB-C port that outputs at least 45W and supports PPS.
A 5A-rated USB-C to USB-C cable. Standard cables (rated for 3A) will cap your charging at 25W or 30W regardless of the power bank’s potential.

Comparison Table: Top Power Banks for S24 Ultra

Power Bank	Max Output	S24 Ultra Speed (0-50%)	Capacity	Price Bracket
Anker 737	140W	~25 minutes	24,000 mAh	Premium
Baseus Blade	100W	~28 minutes	20,000 mAh	Mid-Range
INIU 65W	65W	~30 minutes	20,000 mAh	Budget
Baseus Adaman	65W	~30 minutes	20,000 mAh	Budget
Anker 747	87W	~32 minutes	25,600 mAh	Premium

Top 5 Power Banks for Samsung S24 Ultra

1. The Best Overall: Anker 737 Power Bank (PowerCore 24K)

The Anker 737 is the undisputed king of high-performance portable chargers. While it is marketed as a laptop power bank capable of 140W output, it is its specialized PPS support that makes it the perfect match for the S24 Ultra.

Why we love it: The side-mounted smart digital display is a game-changer. It shows you the real-time wattage going into your phone. In our tests, plugging in the S24 Ultra immediately showed a jump to 43-45W. The 24,000mAh capacity provides roughly 3.8 full charges for the S24 Ultra. It also recharges itself incredibly quickly (up to 140W input), meaning you can fill the power bank in under an hour if you have a powerful wall brick.

Best For: Enthusiasts who want the fastest possible speeds and a visual confirmation of power delivery.

2. The Best Slim Design: Baseus Blade 100W

Most 20,000mAh power banks are shaped like bricks. The Baseus Blade takes a different approach, offering a wide, flat profile that is less than 0.7 inches thick.

Why we love it: It slides into a laptop sleeve or a backpack’s document pocket effortlessly. Despite its slim dimensions, it packs 100W of power and full PPS compatibility. We found that it consistently delivered Super Fast Charging 2.0 to the S24 Ultra, charging it from empty to 50% in about 28 minutes. It also features a digital display showing percentage, wattage, and time remaining.

Best For: Commuters and students who need a high-capacity charger that won’t bulge in their bag.

3. The Best Value: INIU 65W 20000mAh Power Bank

INIU has become a favorite for those who want high-end specs without the “brand tax.” Their 65W model is the most affordable way to get 45W PPS charging for your Samsung device.

Why we love it: It is significantly more compact than the Anker 737 but still manages to provide 3.2 full charges for the S24 Ultra. The inclusion of a small pop-out phone stand is a nice touch, allowing you to watch videos while your phone is docked and charging. INIU also offers an industry-leading 3-year warranty, which is rare in the budget power bank space.

Best For: Budget-conscious users who refuse to settle for slow charging speeds.

4. The Best Metal Build: Baseus Adaman 65W

The Baseus Adaman has been a staple in the charging community for years because of its rugged all-metal construction.

Why we love it: Unlike plastic banks that can creak or feel “hollow,” the Adaman feels like a premium piece of hardware that matches the titanium aesthetic of the S24 Ultra. It supports the 45W PPS protocol perfectly. The red LED display is classically simple, showing voltage, current, and battery percentage. Its heat dissipation is also excellent, meaning it can maintain high speeds for longer periods without throttling.

Best For: Users who appreciate a premium metal feel and durable build quality.

5. The Long-Distance Traveler: Anker 747 Power Bank (PowerCore 26K)

If you are going on an international flight or a multi-day camping trip, the Anker 747 offers the maximum capacity allowed on an airplane (99.16Wh).

Why we love it: With 25,600mAh of juice, it provides nearly 5 full charges for the S24 Ultra. While it doesn’t have the fancy screen of the 737, it is a reliable workhorse with four ports (2 USB-C, 2 USB-A). It can charge your S24 Ultra at the full 45W speed while simultaneously topping up your Galaxy Watch and Galaxy Buds without breaking a sweat.

Best For: World travelers and heavy users who need to survive 3-4 days away from a wall outlet.

Buying Guide: What to Look for in an S24 Ultra Power Bank

PPS Support is Non-Negotiable

You will see many power banks advertised as “65W PD” or “100W PD.” While these will charge a MacBook beautifully, they often only support fixed voltages (5V, 9V, 15V, 20V). Samsung’s 45W mode requires a variable voltage range (PPS). If the power bank doesn’t explicitly mention PPS in the technical specs, it will likely default to 25W or even 15W.

Real vs. Marketed Capacity

A 20,000mAh power bank doesn’t actually give you 20,000mAh of usable energy due to voltage conversion losses and heat. A good rule of thumb is to take 70% of the marketed capacity to find the usable mAh.

10,000mAh: ~1.4 charges for S24 Ultra.
20,000mAh: ~3.0 charges for S24 Ultra.
26,800mAh: ~4.2 charges for S24 Ultra.

Weight and Portability

The S24 Ultra is already a heavy phone at 232g. Adding a 500g power bank like the Anker 737 to your pocket isn’t ideal for a night out.

For daily pocket carry, look for a 10,000mAh bank.
For backslash/travel, a 20,000mAh+ bank is the standard.

Safety Certification

Always look for UL, CE, and FCC certifications. High-capacity lithium batteries can be dangerous if they use low-quality cells or lack short-circuit protection. Stick to reputable brands like Anker, Baseus, and Belkin to protect your $1,300 smartphone.

Frequently Asked Questions (FAQ)

How fast does S24 Ultra charge with a power bank?

If you use a PPS-compatible power bank like the Anker 737 and a 5A cable, the S24 Ultra will charge from 0% to 50% in approximately 25-28 minutes. A full charge will take about an hour. If the power bank is limited to 25W, a full charge will take closer to 1 hour and 20 minutes.

Does S24 Ultra support wireless charging?

Yes, the S24 Ultra supports 15W wireless charging. However, wireless power banks are significantly slower and less efficient than wired ones. We recommend magnetic wireless chargers (Qi2) for “toppings off” during the day, but a wired connection is always better for a rapid refill.

What is the best mAh for S24 Ultra?

The “sweet spot” is 20,000mAh. This provides roughly three full charges, which is enough to get through a heavy weekend of use, while still being small enough to fit in a backpack or purse. A 10,000mAh bank is better for emergency use, providing about 1.5 charges.

Can I use my laptop charger for my S24 Ultra?

Yes, but check the fine print. Most modern 65W or 96W USB-C laptop chargers (like those from Apple or Dell) will charge the S24 Ultra. However, many laptop chargers skip the PPS protocol. If yours does, it will only charge the phone at 15W or 27W, even if the charger is labeled “96W.”

Is the S24 Ultra battery 5,000mAh or 4,900mAh?

The “typical” capacity is 5,000mAh, which is the number most manufacturers use for marketing. The “rated” capacity is often technically 4,855mAh, but for the purpose of calculating power bank charges, 5,000mAh is the standard figure to use.

Conclusion: Which Power Bank Should You Choose?

If you want the absolute best and most future-proof option, buy the Anker 737. The speed and the built-in display make it a perfect companion for the S24 Ultra’s premium features.

If you are on a budget but still want 45W speeds, the INIU 65W or the Baseus Adaman are fantastic alternatives that don’t compromise on performance.

No matter which you choose, don’t forget to pair it with a high-quality 5A USB-C cable. Keeping your S24 Ultra powered up ensures you never miss a shot with that 200MP camera or lose productivity when you’re away from the office.

For more in-depth data and head-to-head comparisons, check out our Power Bank Comparison Tool.