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Black rectangular power bank with built-in USB-C and Lightning cables, digital display, 4.72 x 2.89 x 1.24 inches

Anker A1681 20000mAh 30W power bank with built-in USB-C and Lightning cables

SKU CH-FJKH-WNFE5 MPN A1681

A 20,000mAh power bank with built-in USB-C and Lightning cables delivers 30W charging to four devices at once

  • Total capacity20,000 mAh
  • Compatible phone brandsSmartphone
  • Compatible phone modelsSmartphone
  • Battery chemistryLithium polymer
  • Voltage5 V AC
  • Output typeBuilt-in C Cable +Built-in L Cable +1C1A
  • 20000mAh capacity delivers 4.02 iPhone 15 Pro charges
  • Built-in MFi Lightning and USB-C cables withstand 10000 bends
  • 30W output reaches 58% iPhone 15 in 30 minutes
  • Four devices charge simultaneously via cables and ports
  • Compact 4.72 x 2.89 x 1.24 in design weighs 12.77 oz

All-Day Power for Smartphones

The Anker A1681 is a 20000mAh lithium-polymer power bank designed to keep smartphones running through extended days. Its compact 4.72 x 2.89 x 1.24 inch form factor weighs 12.77 oz, making it practical for daily carry. The 30W output delivers 58% charge to an iPhone 15 or 53% to a Samsung S24 in 30 minutes.

Built-In Cables Remove Extra Gear

An MFi-certified Lightning cable and a USB-C cable are integrated into the body, each tested for over 10000 bends with 48-braid weaving. Together with a USB-C port and a USB-A port, they allow four devices to charge simultaneously. The same built-in cables serve as dual-input paths, so the bank recharges in roughly five hours using a 20W or higher PD charger.

Best for Multi-Device Users Needing Convenience

Travellers and commuters who carry both iPhone and Android devices benefit from the cable-free design and 4.02 iPhone 15 Pro or 3.79 Samsung S24 charges per cycle. Buyers who need higher wattage for laptops, larger capacity for multiple laptop recharges, or wireless charging should look at other solutions.

How it compares

Measured against everything we stock in Portable Chargers & Battery Packs, at today’s prices. Recalculated every night.

Price $64.99
Pricier than about 90% of the 1,307 comparable items (median $36.99).

Specifications

Product
Brand nameAnker
Model nameA1681
Part numberA1681011
Total capacity20,000 mAh
Product type20,000 mAh
Product colorBlack
Ports & slots
Output typeBuilt-in C Cable +Built-in L Cable +1C1A
InputBuilt-in C Cable +Built-in L Cable +1C1A
Power
Battery chemistryLithium polymer
Voltage5 V AC
Size & build
Measurements4.72 in × 2.89 in × 1.24 in
Product weight0.77 lb (0.35 kg)
Compatibility
Compatible phone brandsSmartphone
Compatible phone modelsSmartphone

Questions about this item

How many bends can the built-in Lightning and USB-C cables withstand before they need replacement?

The integrated cables are tested for over 10,000 bends using 48-braid weaving, so they should last through years of daily coiling and uncoiling.

What limits the 30 W output during a long charging session?

The power bank meets safety standards with a maximum temperature rise of 118°F (48°C), so sustained 30 W charging will throttle once that thermal ceiling is reached.

How warm does the unit get and how much power does it draw when charging four devices all day?

Under load the case temperature can rise up to 118°F (48°C) above ambient, and total output is capped at 30 W shared across the two built-in cables, USB-C port and USB-A port.

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