Is it normal for the charging speed to be slow?

The charging speed depends on whether the charger and cable can meet the power bank's requirements. Using a 20W fast charger, the power bank can be fully charged in approximately 5.1 hours.

Can it charge low-current devices like earphones?

Yes, this power bank features a low-current charging mode.Simply double tap the power button to enter this mode to charge small electronic devices and double tap again to exit!

Does it support charging while discharging?

Yes, the power bank supports pass-through charging with a max input and output of 5V/3A. Note that it does not support simultaneous charging and discharging for laptops. For longevity, avoid charging your phone while charging the power bank.

How can I estimate the number of charges for my device?

To estimate charges, use this formula: (Power Bank Capacity × 0.65) ÷ Device Battery Capacity. For example, an iPhone 15 with a 3,877mAh battery can receive about 1.67 charges from a 10,000mAh power bank (10,000mAh × 0.65 ÷ 3,877mAh).

Why is my power bank providing fewer charges than expected?

Energy loss during charging, due to inefficiencies in the battery cells and circuitry, results in a 30% to 45% capacity reduction. Therefore, a fully charged Anker Zolo 20,000mAh Power Bank typically provides about 11,000mAh to 14,000mAh.

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Anker Zolo Power Bank, 20,000mAh 30W High-Speed Portable Charger with Built-in C Cable, USB-C&A, Battery Pack for iPhone 16/15/15 Pro/15 Pro Max/15 Plus, MacBook, Galaxy, and More

Anker Zolo Power Bank, 20,000mAh 30W High-Speed Portable Charger with Built-in C Cable, USB-C&A, Battery Pack for iPhone 16/15/15 Pro/15 Pro Max/15 Plus, MacBook, Galaxy, and More

Product ID: 698535514

Details

Battery Capacity
20000 Milliamp
Brand
Anker
Colour
Black
Connector Type
USB Type C
Voltage
20 Volts

⚡30W ultra-fast charging

🔋10,000mAh high-capacity battery

🔌5.4-inch built-in USB-C cable, 10,000+ bend durability

Details

Battery Capacity
20000 Milliamp
Brand
Anker
Colour
Black

Description

⚡ Power up your hustle, anywhere, anytime!

BUILT TO LAST - Durable built-in USB-C cable tested for over 10,000 bends ensures everyday reliability 🔌
UNIVERSAL COMPATIBILITY - Seamlessly powers iPhone 16/15/14/13/12, iPad, MacBook, Galaxy, Google, Switch, and more 🌐
BI DIRECTIONAL USB C MAGIC - Enjoy 30W output and 20W input for fast charging both your devices and the power bank itself 🔄
LIGHTNING FAST POWER BOOST - Charge your iPhone 15 to 57% in just 30 minutes with 30W rapid charging ⚡
TRAVEL READY COMPACT DESIGN - Sleek 10,000mAh capacity fits perfectly in your bag for up to 2 full iPhone charges 🔋

The Anker Portable Charger packs a punch with a 10,000mAh lithium polymer battery and 30W bi-directional USB-C fast charging. Its compact design includes a built-in 5.4-inch USB-C cable tested for over 10,000 bends, making it a durable travel essential compatible with a wide range of devices including the latest iPhone and MacBook models. Perfect for professionals on the go who demand reliable, rapid power without the bulk.

Specifications

ASIN	B0CZ9LH53B
Battery Capacity	20000 Milliamp Hours
Battery Cell Composition	Lithium Polymer
Battery Cell Type	Lithium Polymer
Battery Weight	270 Grams
Best Sellers Rank	#37,449 in Electronics ( See Top 100 in Electronics ) #282 in Mobile Portable Power Banks
Brand	Anker
Brand Name	Anker
Colour	Balck
Compatible Devices	Smartphone
Customer Reviews	4.6 out of 5 stars 21,798 Reviews
External Testing Certification	/
Importer Contact Information	VALUECART PRIVATE LIMITED
Is Electric	No
Is Product Cordless	No
Item Dimensions	12 x 7.3 x 3.1 Centimeters
Item Dimensions L x W x Thickness	12L x 7.3W x 3.1Th Centimeters
Item Type Name	Anker Zolo Power Bank
Item Weight	365 Grams
Item Weight Unit of Measure	365 Grams
Manufacturer	Anker, Support Website:https://www.anker.com/contact Email Support: [email protected] Call Support:000-8000-504-414 (Mon-Fri, 09:30-19:30 IST) WhatsApp Number: +91 88846 01966 （09:30 – 19:30 IST)
Manufacturer Contact Information	Support Website:https://www.anker.com/contact Email Support: [email protected] Call Support:000-8000-504-414 (Mon-Fri, 09:30-19:30 IST) WhatsApp Number: +91 88846 01966 （09:30 – 19:30 IST)
Manufacturer Part Number	A1689011
Model Number	A1689
Number of Batteries	1 C batteries required.
Number of Items	1
Number of Ports	3
Packer Contact Information	Anker Innovations Limited
Portable	Yes
UPC	194644038403
Unit Count	1 Count
Voltage	20 Volts
Warranty Description	12 month

Reviews

S**R

16.01.2026

G**T

1.10.2025

R**U

26.12.2025

P**R

15.09.2025

G**T

26.01.2026

B**4

15.02.2026

C**A

16.10.2025

A**M

25.01.2026

J**S

12.04.2026

M**A

9.04.2026

C**E

26.04.2026

L**O

7.10.2025

R**T

30.05.2025

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