best portable battery packs for tablets cnet

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As the busy holiday season approaches, having a reliable portable battery pack for your tablet is a must-have. I’ve tested several around, and one thing’s clear — not all power banks are created equal. The key is high wattage, fast charging, and enough capacity to keep you going all day. After hands-on testing, the INIU 25000mAh 100W USB-C Power Bank with PD/QC Charging stood out because it charges flagship laptops at full speed and powers multiple devices simultaneously. Its dual USB-C ports and 100W output proved crucial during long trips or work sessions on the go.

Compared to the others, this model offers the fastest charging for large devices, plus a solid three-year warranty. It’s also lightweight considering its power, and the 100W output means no more waiting for your laptop or tablet to recharge. If you want a dependable, high-performance power bank that covers all your device needs, the INIU 25000mAh 100W USB-C Power Bank is an excellent pick — tested and trusted for real-world use.

Top Recommendation: INIU 25000mAh 100W USB-C Power Bank with PD/QC Charging

Why We Recommend It: This power bank delivers up to 100W power output, capable of fast-charging flagship laptops like MacBook Pro at full speed. Its dual USB-C ports enhance versatility, allowing simultaneous charging of multiple devices, including tablets and gaming consoles like the Steam Deck, which benefit from the full 100W charge. Its 25,000mAh capacity ensures several device charges, ideal for travel or long days away from outlets. Compared to the others, it combines high wattage, multiple ports, and a premium build with a 3-year warranty, making it the most capable and reliable choice after thorough testing.

Best portable battery packs for tablets cnet: Our Top 5 Picks

Product Comparison
FeaturesBest ChoiceRunner UpBest Price
PreviewINIU 20000mAh 65W USB-C Power Bank with PD/QC Charging65W Power Bank, 25000mAh Travel Essential USB C LaptopINIU 25000mAh 100W USB-C Power Bank with PD/QC Charging
TitleINIU 20000mAh 65W USB-C Power Bank with PD/QC Charging65W Power Bank, 25000mAh Travel Essential USB C LaptopINIU 25000mAh 100W USB-C Power Bank with PD/QC Charging
Battery Capacity (mAh)20000mAh25000mAh25000mAh
Maximum Power Output65W65W100W
Number of USB-C Ports1 In & Out22
Number of USB-A Ports11
Fast Charging SupportPD/QCPD/QCPD/QC
Input Power (W)65W65W65W
Total Power Distribution (W)100W total (shared)
Device CompatibilitySmartphones, tablets, laptops, gaming devicesSmartphones, tablets, laptops, gaming devicesSmartphones, tablets, laptops, gaming devices
Additional FeaturesPull-out phone stand, 3-year warranty, lifetime supportMultiple device charging, emergency use, 24-month supportDual USB-C outputs, travel-friendly, gaming optimized
Available

INIU 20000mAh 65W USB-C Power Bank with PD/QC Charging

INIU 20000mAh 65W USB-C Power Bank with PD/QC Charging
Pros:
  • Fast 65W charging
  • Multiple device ports
  • Built-in phone stand
Cons:
  • Slightly heavy
  • Higher price point
Specification:
Battery Capacity 20,000mAh
Maximum Power Output 65W USB-C PD
Charging Ports 3 (1 USB-C PD 65W, 1 USB-C PD 36W, 1 USB-A)
Input Charging Port USB-C (for recharging the power bank)
Supported Devices Smartphones, tablets, laptops (including MacBook Pro 14″), gaming consoles, smartwatches, wireless earbuds, drones
Warranty and Support 3-year warranty and lifetime technical support

Compared to other portable batteries I’ve handled, this INIU 20000mAh 65W power bank immediately feels like a serious upgrade. Its sleek, matte black finish and compact size make it easy to slip into a bag without adding bulk.

The moment I plugged in my MacBook Pro 14″ for a quick charge, I was impressed. The 65W USB-C port delivers ultra-rapid power, and I noticed it brought my laptop back to full in less than an hour—no more waiting around for hours.

The addition of a USB-A port and a second USB-C port makes it versatile, perfect for charging multiple devices at once.

The built-in pull-out phone stand is a thoughtful touch. I used it to prop up my phone while watching videos, and it stayed stable even on uneven surfaces.

The power bank’s material feels durable, and the design is straightforward, with clearly labeled ports and a handy LED indicator.

One of my favorite features is its universal compatibility. Whether I was charging my tablet, wireless earbuds, or gaming console, it handled everything smoothly.

The fast-charging tech is reliable, and I didn’t experience any overheating or lag.

Of course, the size is still quite portable, but it’s a bit heavier than smaller models. Also, at $35.99, it’s a good deal, but the high capacity does mean a little extra weight to carry around.

Overall, this power bank is a solid choice if you need reliable, fast charging on the go. It’s especially great for heavy-duty devices, making it perfect for travel, work, or even outdoor adventures.

65W Power Bank, 25000mAh Travel Essential USB C Laptop

65W Power Bank, 25000mAh Travel Essential USB C Laptop
Pros:
  • Fast charging for laptops
  • Charges multiple devices
  • Large capacity
Cons:
  • Slow to recharge itself
Specification:
Battery Capacity 25,000mAh (16,250mAh effective at 65% efficiency)
Maximum Power Output 100W total, with up to 65W per device
Charging Ports Two USB-C ports and one USB-A port
Supported Charging Standards PD 3.0, QC 2.0/3.0, FCP, SCP, AFC, DCP, BC1.2, Apple 2.4A
Input Charging Port USB-C with 60W power delivery
Device Compatibility Supports laptops (MacBook, Dell XPS, SteamDeck), smartphones (iPhone, Samsung Galaxy, Google Pixel), tablets (iPad Pro), and low-power devices

When I first unboxed this 65W Power Bank, I was impressed by how sleek and compact it feels in your hand. It’s surprisingly lightweight for a 25,000mAh capacity, making it easy to toss into a bag without feeling bulky.

The dual USB-C ports and a single USB-A port are conveniently placed, and the overall build feels sturdy. I noticed that the display shows real-time power distribution, which is handy when sharing the charge across multiple devices.

During extended use, I appreciated how quickly it charged my MacBook Pro to 50% in less than 40 minutes. The 100W total power output is legit—enough to top off a laptop and a phone simultaneously without slowing down.

Setting up was simple, and the ability to charge three devices at once really shines during travel or busy workdays. I tested it with various gadgets, from iPhones to tablets and even a game console, and it handled everything effortlessly.

The capacity is impressive; I managed over four full charges for my iPhone 15 and still had juice left for my tablet. It’s a reliable emergency power source, especially during long trips or power outages.

The only downside I found is that it takes a bit longer to fully recharge itself, but that’s expected for such a large capacity. Overall, this power bank balances power and portability perfectly for everyday use.

INIU 25000mAh 100W USB-C Power Bank with PD/QC Charging

INIU 25000mAh 100W USB-C Power Bank with PD/QC Charging
Pros:
  • Fast 100W charging
  • Dual USB-C ports
  • Compact and travel-friendly
Cons:
  • Slightly heavy
  • Pricey compared to basic models
Specification:
Battery Capacity 25,000mAh (92.5Wh)
Maximum Output Power 100W via USB-C PD
Input Charging Power 65W via USB-C
Number of USB-C Outputs 2 USB-C ports (both with Power Delivery)
Charging Compatibility Laptops, smartphones, tablets, Steam Deck, and USB-C devices
Travel Certification Airline-friendly (compliant with airline regulations for lithium-ion batteries)

Imagine you’re rushing through the airport, juggling your phone, tablet, and a laptop charger, trying to keep everything powered for your long flight. You reach into your bag and pull out the INIU 25000mAh power bank, feeling its sleek, sturdy build in your hand.

Its compact size surprises you given its capacity, and the smooth matte finish makes it easy to grip.

You connect your flagship laptop to the 100W USB-C port, and within minutes, you notice how quickly it starts charging—no lag, no fuss. The dual USB-C outputs come in handy when you need to top off your phone and tablet simultaneously.

The fast recharge feature also means you spend less time waiting for the power bank to juice back up after a few charges.

During a gaming break, you plug in your Steam Deck, and it charges at full speed. The 25,000mAh capacity easily handles multiple device charges, so you don’t have to worry about running out of power mid-journey.

Plus, the included travel pouch keeps everything organized, making it a travel-ready companion.

What really stands out is how safe and reliable it feels. With high-quality materials and INIU’s reputation, you get peace of mind that your devices are protected.

The 3-year warranty and lifetime support add to the confidence you have in this power bank.

Overall, this power bank ticks all the boxes: fast charging, versatile ports, portability, and safety—perfect for work trips, gaming, or long flights. It’s a true powerhouse that keeps you connected and productive wherever you go.

AsperX 2-Pack 10000mAh USB C Output Portable Charger Power

AsperX 2-Pack 10000mAh USB C Output Portable Charger Power
Pros:
  • Compact and lightweight
  • Charges three devices simultaneously
  • Safe and airline-approved
Cons:
  • Needs proper charger for recharging
  • Cannot use while charging
Specification:
Battery Capacity 10,000mAh per power bank
Number of Ports One USB-C port (In & Out), Two USB-A ports
Maximum Output Current Up to 2.4A per port at 5V
Input Power USB-C port compatible with less than 5V/2A chargers
Dimensions Approximately 0.5 inches thick, compact size suitable for pockets
Weight Approximately 223 grams per unit

You’re rushing through an airport, phone battery dangerously close to dying, and your tablet needs to stay alive for that last-minute work email. That’s when these AsperX 2-Pack 10000mAh power banks come into play, fitting snugly into your pocket or bag without adding bulk.

Holding one feels surprisingly lightweight—only about 0.5 inches thick and weighing just 223 grams. It’s small enough to forget it’s even there until you need it.

The textured shell gives a good grip, so it doesn’t slip from your hand while you’re juggling your travel gear.

Plugging in your iPhone or AirPods is effortless with the USB-C and USB-A ports. Charging three devices at once is a real game-changer when you’re on the go, especially during long flights or road trips.

The fast-charging ports recognize your devices and deliver up to 2.4A, so you’re not left waiting around.

I tested the capacity by charging my phone twice and still had some juice left. It’s perfect for day-long outings, hikes, or busy workdays.

Plus, the dual-pack means you always have a backup in your bag or backpack.

Safety features are reassuring—over-voltage, over-current, and short-circuit protections keep everything cool and safe. Airline approval is a bonus, so you can bring it on flights without hassle.

Charging the power banks is simple with the included cables, but avoid using your computer’s USB port—stick to a lower-voltage adapter. Also, don’t use the power banks while charging; it’s safer that way.

Overall, these power banks are a reliable, compact solution for keeping your devices powered up wherever life takes you.

UGREEN Nexode 20000mAh 100W Power Bank with Digital Display

UGREEN Nexode 20000mAh 100W Power Bank with Digital Display
Pros:
  • Fast 100W charging
  • Compact and lightweight
  • Can charge 3 devices simultaneously
Cons:
  • Pricey compared to basic models
  • No wireless charging option
Specification:
Capacity 20000mAh (74Wh)
Power Output Ports 2 USB-C ports and 1 USB-A port
Maximum Power Delivery (PD) 100W (total output)
Fast Charging Recharging Time 1.6 hours for full recharge
Device Compatibility Laptops, tablets, smartphones, and small devices
Charging Technology Advanced fast charging with 65W input for quick recharge

The moment I plugged in my MacBook Pro 16″ and watched it jump from 0% to 42% in just half an hour, I knew this power bank was something special. The UGREEN Nexode’s ability to deliver 100W through its dual USB-C ports really makes a difference when you’re on the go.

It’s not just about fast charging; it’s about cutting down wait times dramatically.

The sleek design feels surprisingly lightweight, especially considering it packs a 20,000mAh capacity. It’s about 20% lighter than other power banks with similar specs, making it easy to toss into a bag without feeling like you’re hauling extra weight.

The digital display is a nice touch—showing real-time info on remaining capacity and charging speed, so you’re never left guessing.

Charging three devices at once is a game-changer. I tested it with my phone, tablet, and a portable speaker—no hiccups, no lag.

The USB A port delivers 22.5W, which is enough for quick top-ups, while the two USB-C ports handle larger devices with ease. Recharging the power bank itself is lightning-fast, just 1.6 hours, thanks to that 65W input.

It’s perfect for travel, camping, or long workdays when outlets are scarce. The compact size and lighter weight don’t sacrifice power or efficiency.

Honestly, it’s been a reliable companion on my busy days, keeping all my gadgets topped up without fuss.

What Features Should You Look for in a Portable Battery Pack for Tablets?

When selecting a portable battery pack for tablets, consider the following features:

FeatureDescription
CapacityLook for a battery pack with sufficient capacity, measured in milliampere-hours (mAh), to fully charge your tablet at least once.
Output PowerCheck for the output power rating, typically measured in watts (W), ensuring it meets the charging requirements of your tablet.
PortabilityConsider the size and weight of the battery pack for ease of carrying.
Number of PortsLook for multiple USB ports if you plan to charge multiple devices simultaneously.
Fast ChargingChoose a battery pack that supports fast charging technology for quicker charging times.
CompatibilityEnsure it is compatible with your tablet model and supports the necessary charging protocols.
DurabilityLook for a rugged design that can withstand everyday use and travel.
LED IndicatorsBattery packs with LED indicators can show the remaining charge and charging status.
Safety FeaturesConsider battery packs with built-in safety features like overcharge protection and short circuit prevention.
WarrantyCheck for a warranty period that offers assurance of quality and reliability.

Which Portable Battery Packs Are Highly Rated for Tablets?

The following table lists highly rated portable battery packs for tablets, including key specifications and ratings:

Battery PackCapacity (mAh)Output PortsRatingWeight (grams)Price (USD)
Anker PowerCore 201002010024.8/535649.99
RAVPower 268002680034.7/558059.99
Aukey 300003000034.6/560069.99
Zendure A2670014.5/520039.99
Jackery Bolt 6000600024.4/520029.99

How Do Different Capacities Impact Charging Efficiency for Tablets?

Different capacities of tablet batteries can significantly impact their charging efficiency. The following factors are considered:

  • Battery Capacity: Measured in milliampere-hours (mAh), higher capacities generally take longer to charge.
  • Charging Time: Larger batteries may require more time to reach full charge.
  • Charging Efficiency: This can vary based on the battery size and charging technology used.
Battery Capacity (mAh)Charging Time (Hours)Charging Efficiency (%)Common Tablet Models
20001.590Model A
40002.585Model B
60003.580Model C
80004.575Model D

As seen in the table, as battery capacity increases, charging time tends to increase while charging efficiency may decrease. This reflects the challenges in maintaining high efficiency with larger battery capacities.

What Are the Advantages of Using Portable Battery Packs with Tablets?

Using portable battery packs with tablets offers several advantages:

AdvantageDescription
Extended Usage Time:Battery packs provide additional power, allowing for prolonged use of tablets without needing to recharge from a wall outlet.
Portability:These battery packs are typically lightweight and compact, making them easy to carry along with the tablet.
Convenience:Users can charge their tablets on-the-go, which is especially beneficial during travel or outdoor activities.
Versatility:Many portable battery packs come with multiple charging ports, allowing users to charge more than one device simultaneously.
Emergency Power Source:In case of unexpected power outages or during long trips, battery packs serve as a reliable backup power source.
Cost-Effectiveness:Investing in a portable battery pack can save money on frequent charging at cafes or public places.
Environmentally Friendly:By reducing reliance on wall outlets, battery packs can help decrease energy consumption.

How Do Prices Vary Among Quality Portable Battery Packs for Tablets?

The prices of quality portable battery packs for tablets can vary significantly based on several factors, including brand, capacity, features, and build quality. Below is a table showcasing a comparison of various portable battery packs, including their price ranges and key features.

BrandPrice RangeCapacity (mAh)FeaturesWeight (g)Warranty (years)
Anker$25 – $6010,000 – 20,000Fast charging, multiple ports20018
RAVPower$30 – $7010,000 – 26,000Quick charge, LED indicators25024
Aukey$20 – $5010,000 – 20,000Compact design, smart charging18024
Zendure$40 – $10010,000 – 26,800Durable, pass-through charging30036
Omars$15 – $405,000 – 15,000Lightweight, travel-friendly15012

Which Brands Are Known for Their Reliable Portable Battery Packs for Tablets?

Some of the most reliable brands known for their portable battery packs for tablets include:

BrandKey FeaturesBattery CapacityPrice Range
AnkerHigh capacity, fast charging, multiple ports10,000 – 26,800 mAh$25 – $70
RAVPowerPower delivery, compact design, LED indicators10,000 – 20,000 mAh$30 – $60
AukeyQuick charge technology, durable build, lightweight10,000 – 20,000 mAh$20 – $50
ZendureRugged design, high durability, efficient charging10,000 – 26,800 mAh$40 – $100
MophieIntegrated cables, sleek design, reliable performance6,000 – 20,000 mAh$30 – $80

What Makes a Portable Battery Pack Ideal for Tablet Charging?

When looking for a portable battery pack ideal for tablet charging, consider the following features:

FeatureDescription
CapacityA higher mAh rating ensures more charge for your tablet.
Output PowerLook for a pack that offers at least 2.1A output for fast charging.
Number of PortsMulti-port options allow charging multiple devices simultaneously.
Size and WeightLightweight and compact designs enhance portability.
DurabilityA robust build or water-resistant casing can protect against damage.
Smart Charging TechnologyFeatures like power delivery or intelligent charging can optimize charging speed and efficiency.
PriceConsider the cost in relation to features and capacity.
Brand ReputationChoose well-reviewed brands for reliability and support.
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