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20,000mAh or 24,000mAh Portable Power Banks? Compared by Specs

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Choosing between a 20000mah vs 24000mah portable power bank depends on your specific power needs. Both units offer high-capacity charging for travel and daily use. The main difference lies in their output power and recharge speeds. One unit prioritizes a built-in cable for convenience, while the other focuses on raw wattage and durability. You need to decide if extra capacity and faster charging justify the larger size.

Key differences

AspectAnker 20,000mAh 87W Power Bank with Built-in CableShargeek 170 24,000mAh Portable Charger
Battery Capacity20,000mAh24,000mAh
Max Output Power87W170W
Recharge Speed65W140W
Key FeaturesBuilt-in USB-C cableSmart display, IP66 rating

Which one should you choose?

Choose Anker 20,000mAh 87W Power Bank with Built-in Cable if

  • You prefer a lighter device with a built-in cable for quick phone charging
  • You want a more compact power bank for everyday carry
  • You primarily charge one or two devices at a moderate speed

Choose Shargeek 170 24,000mAh Portable Charger if

  • You need to charge a laptop or multiple devices at maximum speed
  • You work in dusty or wet environments and need water resistance
  • You want to see real-time charging data on a digital display

Verdict: The Anker is better for travelers who value portability and the convenience of a built-in cable. The Shargeek suits users who need higher wattage for laptops and require durability in harsh conditions. Your choice depends on whether you prioritize size or raw power.

20,000mAh vs 24,000mAh Power Bank Specs

Battery Capacity

Edge: Shargeek 170 24,000mAh Portable Charger

The Shargeek 170 offers a higher battery capacity at 24,000mAh, while the Anker Power Bank provides 20,000mAh. This difference means the Shargeek can store more energy for your devices. You get 4,000mAh more capacity with the Shargeek model. This extra capacity allows for more full charges of your phone or tablet before the power bank itself needs recharging. If your primary concern is maximizing the number of charges you can get from a single unit, the 24,000mAh option provides a tangible advantage. The Anker unit is sufficient for many users, but the Shargeek gives you a larger reserve of power to rely on during extended trips or days without access to an outlet.

Max Output Power

Edge: Shargeek 170 24,000mAh Portable Charger

When it comes to charging speed for your devices, the Shargeek 170 delivers significantly more power. It supports a maximum output of 170W across its ports. The Anker Power Bank maxes out at 87W total output. This means the Shargeek can charge larger laptops, like a 16-inch MacBook Pro, much faster than the Anker unit. If you need to charge a high-power device quickly, the 170W capability is a major benefit. The Anker unit is still capable of charging a 14-inch MacBook Pro to 50% in under 40 minutes, but the Shargeek offers nearly double the peak power delivery for simultaneous multi-device charging.

Recharge Speed

Edge: Shargeek 170 24,000mAh Portable Charger

How quickly you can refill the power bank itself is also a key specification. The Shargeek 170 supports 140W input charging, allowing it to recharge in just 45 minutes. The Anker Power Bank accepts up to 65W input, taking about 1.5 hours to fully recharge. The Shargeek’s 140W PD3.1 input is significantly faster, minimizing downtime. If you are in a hurry and need your power bank ready for the next outing quickly, the Shargeek’s rapid recharge capability is superior. The Anker unit is still reasonably fast, but it takes more than twice as long to fill up compared to the Shargeek model.

Built-in Cable

Edge: Anker 20,000mAh 87W Power Bank with Built-in Cable

The Anker Power Bank includes a built-in USB-C cable, which the Shargeek 170 does not. The Anker unit features an integrated cable designed to withstand over 10,000 bends, offering convenience for users who often forget their cables. You can plug your iPhone 15 Pro directly into the power bank without needing an extra cord. The Shargeek 170 requires you to use the included 240W C-C cable for charging. If you value having a cable always attached and ready to use, the Anker design is more practical. The Shargeek offers more flexibility in cable choice but requires you to carry the cable separately.

Display and Monitoring

Edge: Shargeek 170 24,000mAh Portable Charger

The Shargeek 170 features a smart display that shows charging power, time, and battery level. This transparent design allows you to monitor status anytime. The Anker Power Bank does not list a display in its specifications. Without a display, you cannot see the exact power draw or remaining time on the Anker unit. The Shargeek’s display provides detailed information that helps you manage your charging sessions more effectively. If you prefer knowing exactly how much power is being delivered and how long until full, the Shargeek’s display is a useful feature. The Anker unit relies on indicator lights or external checks, offering less visual feedback.

Durability and Build

Edge: Shargeek 170 24,000mAh Portable Charger

The Shargeek 170 is rated IP66 for water and dust resistance, making it tough against environmental elements. It is noted as the first IP66-rated high-power portable charger on Amazon. The Anker Power Bank does not list an IP rating in its specifications. The IP66 rating means the Shargeek can handle dust ingress and powerful water jets, offering better protection for outdoor use. If you frequently travel in rugged or wet conditions, the Shargeek’s durability is a clear advantage. The Anker unit is designed for general travel use but lacks the specific weather-resistant certification of the Shargeek model.

Which Power Bank Fits Your Needs

Users needing maximum power and speed

Our pick: Shargeek 170 24,000mAh Portable Charger

The Shargeek 170 delivers 170W total output and recharges in just 45 minutes using 140W input. Its 24,000mAh capacity stores more energy than the Anker option. You also get two USB-C ports and one USB-A port for charging three devices simultaneously. This high-speed performance suits users who prioritize rapid power delivery and higher capacity for demanding electronics.

Travelers wanting convenience and portability

Our pick: Anker 20,000mAh 87W Power Bank with Built-in Cable

The Anker Power Bank includes a built-in USB-C cable, eliminating the need to carry extra wires. It weighs only 15.5 ounces and measures 6.2 by 2.9 by 1.0 inches, making it compact for travel. The durable cable withstands over 10,000 bends. This design offers reliable charging for daily use without the bulk of larger units or the need for separate cables.

Buyers requiring weather resistance

Our pick: Shargeek 170 24,000mAh Portable Charger

The Shargeek 170 features an IP66 rating, making it resistant to dust and water jets. This protection ensures durability in various outdoor conditions. While the Anker model lacks this specification, the Shargeek provides peace of mind for users who expose their gear to rain or dusty environments. The transparent design also includes a smart display for monitoring status.

Quick picks

#ProductBest forPrice
1 Anker 20,000mAh 87W Power Bank with Built-in Cable Travelers needing built-in cable convenience Check price of Anker 20,000mAh 87W Power Bank with Built-in Cable on Amazon
2 Shargeek 170 24,000mAh Portable Charger fast multi-device charging and durability Check price of Shargeek 170 24,000mAh Portable Charger on Amazon

The products compared

Anker 20,000mAh 87W Power Bank with Built-in Cable

Best for: Travelers needing built-in cable convenience

Capacity
20,000mAh (what this guide is about)
Battery Capacity
20,000mAh
Max Output Power
87W
Recharge Speed
65W
Built-In Cable
Built-in USB-C
Application
Travel

View on Amazon: Anker 20,000mAh 87W Power Bank with Built-in Cable Affiliate link

This Anker power bank offers 20,000mAh capacity and an 87W max output. It features a built-in USB-C cable for direct device charging. The unit weighs 15.5 ounces and measures 6.2 by 2.9 by 1.0 inches. It supports rapid recharge via a 65W input. This model suits travelers needing reliable, airline-approved backup power for phones and laptops.

Pros

  • 20,000mAh battery capacity for extended use
  • 87W max output with single device up to 65W
  • Built-in USB-C cable withstands over 10,000 bends
  • Recharges fully in 1.5 hours with 65W charger

Cons

  • Lower 20,000mAh capacity compared to 24,000mAh alternatives
  • Only one output port type listed (USB-C)
  • Heavier than typical phone chargers at 15.5 ounces

Good fit if

  • You need a built-in cable for convenience
  • You travel frequently and need airline-approved capacity
  • You charge laptops and phones simultaneously

Skip if

  • You require higher than 20,000mAh capacity
  • You need multiple output port types
  • You prioritize the lightest possible unit

Verdict: Anker 20,000mAh Travel Power Bank fits users who value integrated cabling and solid 65W laptop charging over maximum capacity. It is a practical companion for daily commutes and short trips.

Shargeek 170 24,000mAh Portable Charger

Best for: fast multi-device charging and durability

Capacity
24,000mAh (what this guide is about)
Battery Capacity
24000mAh / 86.4Wh
Max Output Power
170W
Output Ports
2x USB-C, 1x USB-A
Recharge Speed
140W
Display Type
Smart Display

View on Amazon: Shargeek 170 24,000mAh Portable Charger Affiliate link

The Shargeek 170 offers 24,000mAh capacity with a 170W total output. It features two 140W USB-C ports and one USB-A port. The unit recharges in 45 minutes via 140W input. It holds an IP66 rating for dust and water resistance. A smart display shows power levels and time. This model suits users needing high-speed charging for multiple devices.

Pros

  • 24,000mAh battery capacity
  • 170W total output power
  • IP66 water and dust resistant
  • Recharges in 45 minutes
  • Smart display for status monitoring

Cons

  • Heavier at 1.5 pounds
  • Bulky dimensions for travel
  • No mention of app control

Good fit if

  • You need to charge 3 devices simultaneously
  • You require fast 140W input recharge
  • You want IP66 durability

Skip if

  • You prioritize ultra-lightweight portability
  • You need a compact travel size
  • You want app-based monitoring

Verdict: Shargeek 170 24000mAh 140W Power Bank delivers high power and durability for users who need to charge multiple devices quickly. It fits those who value speed and protection over compact size.

Specifications side by side

Spec Anker 20,000mAh 87W Power Bank with Built-in Cable Shargeek 170 24,000mAh Portable Charger
Battery Capacity 20,000mAh 24000mAh / 86.4Wh
Max Output Power 87W 170W
Output Ports not stated 2x USB-C, 1x USB-A
Recharge Speed 65W 140W
Built-In Cable Built-in USB-C not stated
Display Type not stated Smart Display
Capacity 20,000mAh 24,000mAh
Application Travel not stated
Features Built-in Cable Digital Display
Compatible Devices Smartphones, Laptops Smartphones, Laptops
Dimensions 6.2 × 2.89 × 1.02 inches 6.49 × 2.32 × 2.48 inches
Weight 15.5 ounces 1.5 pounds
Color White Alpine white
Model A1383 SP170

Frequently asked questions

Which power bank is lighter, the 20,000mAh or 24,000mAh option?

The 20,000mAh Anker model is lighter at 15.5 ounces. The 24,000mAh Shargeek 170 weighs 1.5 pounds. You should choose the Anker if minimizing weight is your priority for travel. The Shargeek offers more capacity but adds noticeable heft to your carry load.

Does the 20,000mAh power bank include a built-in cable?

Yes, the Anker 20,000mAh model features a built-in cable. This design eliminates the need to carry separate charging cords. It provides convenience for users who prefer an all-in-one solution for their daily commute or short trips without extra clutter.

What is the total output power of the 24,000mAh Shargeek?

The Shargeek 170 delivers 140W of total output power. This high wattage supports fast charging for multiple devices simultaneously. It is suitable for users who need to charge laptops and phones quickly without waiting for individual ports to recharge.

How fast does the 24,000mAh power bank recharge itself?

The Shargeek 170 recharges in just 45 minutes using 140W input. This rapid refill time ensures the unit is ready for use quickly. It is ideal for users who need a high-capacity backup that does not require long charging periods.

Which power bank is better for travelers needing cable convenience?

The Anker 20,000mAh is best for travelers valuing built-in cable convenience. Its integrated design reduces the need to pack extra wires. This makes it a practical companion for daily commutes and short trips where simplicity and portability are key factors.

What is the difference in battery capacity between the two models?

The Shargeek 170 has a 24,000mAh capacity, while the Anker has 20,000mAh. This means the Shargeek stores 4,000mAh more energy. You get more charging cycles for your devices with the higher capacity model, assuming similar usage patterns.

Does the 20,000mAh power bank support laptop charging?

Yes, the Anker 20,000mAh supports 65W laptop charging. This output level is sufficient for many ultrabooks and tablets. It provides solid performance for users who need to power their work devices on the go without relying on wall outlets.

Which model offers more output ports for multiple devices?

The Shargeek 170 offers two USB-C ports for charging multiple devices. The Anker model focuses on a single USB-C output with a built-in cable. If you need to charge several gadgets at once, the Shargeek provides more flexible port options.

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