Why is my power bank providing fewer charges than expected?

Energy loss during charging due to inefficiencies in battery cells and circuitry results in a 30% to 45% capacity reduction. A fully charged Anker 25,000mAh power bank typically delivers about 13,750 to 17,500mAh.

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

To estimate the number of charges, use this formula: (Power Bank Total Capacity × 0.65) ÷ Device Battery Capacity. For example, a device with a 3,349mAh battery can receive approximately 4.8 charges from a 25,000mAh power bank.

How long does it take to recharge the power bank?

The recharge time depends on the charger's power and the ambient temperature. Using a 100W or higher charger at 77°F (25°C), it typically takes about 2 hours to fully recharge the power bank.

How to turn off the screen?

The screen will automatically turn off after 10 seconds of inactivity. Alternatively, you can manually turn off the screen at any time by pressing and holding the button for 2 seconds, whether the device is active or inactive.

How do I adjust the length of the retractable cable and use the short cable?

Pull the retractable cable to your desired length and tug gently to lock it. To retract, pull slightly and it will retract automatically. For the lanyard, press upward to extend and downward to secure it in place.

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Anker Power Bank, 25,000mAh 165W Ultra-Fast Portable Charger for Dual Laptops, Fast Charging Battery Pack with Built-In and Retractable Cables, For iPhone 17/16 Series, Samsung, and More

Anker Power Bank, 25,000mAh 165W Ultra-Fast Portable Charger for Dual Laptops, Fast Charging Battery Pack with Built-In and Retractable Cables, For iPhone 17/16 Series, Samsung, and More

Product ID: 683217844

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Details

Connector type
USB-A*1
Brand
Anker
Battery capacity
25000 Milliamp
Colour
Black
Special features
Built In Cable

⚡165W dual laptop charging

🔋25,000mAh long-haul power

🔌Dual built-in retractable cables

Description

⚡ Power your hustle, anywhere, anytime.

ULTRA FAST RECHARGE - Refuel the power bank to 30% in just 20 minutes with 100W ultra-fast input charging.
BUILT IN CONVENIENCE - Two retractable USB-C cables built to last 17,000+ bends double as a sturdy carrying strap—no more cable clutter.
POWER UP TWICE AS FAST - Dual ports deliver up to 165W combined, charging two laptops simultaneously without compromise.
CHARGE ALL YOUR ESSENTIALS - Simultaneously power up to 4 devices via dual USB-C cables, USB-A, and USB-C ports—stay connected everywhere.
ENDURANCE FOR THE LONG HAUL - Massive 25,000mAh capacity keeps your devices powered through extended workdays and travel.

The Anker 25,000mAh power bank features dual 165W ports for rapid laptop charging, built-in retractable USB-C cables designed for durability, and the ability to charge four devices simultaneously. Its ultra-fast 100W input recharges the bank quickly, making it the ultimate portable power solution for busy professionals on the move.

Specifications

Product Dimensions	15.7 x 5.4 x 4.9 cm; 450 g
Batteries	1 C batteries required. (included)
Item model number	A1695
Special features	Built In Cable, Digital Display, Fast Charging, Short Circuit Protection
Color	Black
Item Weight	450 g

Reviews

O**N

Love the built-in retractable cable

I'm really liking the retractable cable - it also seems to have a magnet to keep it tucked in without any clips. Really well done.Also, to my surprise, the lanyard is also a rugged USB-C cable. In summary, highly recommended!

2.09.2025

R**V

Best quality in field

Before i bought Ugreen (similar type). And then i returned as Ugreen was defective and cheaply made, but this Anker is very very nice. I love it so much.

18.09.2025

Y**L

Good product

Very nice and good quality product.

21.08.2025

A**T

Nice

Great product

7.08.2025

M**A

good power bank but weight more than half kg

good. weight is more than half kg. charging good charging wires also inside attach to power bank no need to buy extra charging wire . overall good

15.08.2025

G**H

Product design and efficacy

Very well designed product

13.07.2025

Y**R

Recommended

Great product and quality.Little heavy, fast to charge, 2 hrs is enough for full charge by using 65w charger. Nice design and display.Recommended

20.05.2025

R**S

Amazing

Fast not heating

8.09.2025

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