Why is my power bank providing fewer charges than expected?

The capacity reduction during charging is due to a 35% to 45% energy loss in the battery cells and conversion circuitry. Therefore, a fully charged Anker 737 Power Bank (PowerCore 24K) offers an estimated 6,600mAh~7,800mAh to power devices.

Is it normal for the power bank or connected devices to feel warm during charging?

Yes. It is normal for devices to generate heat during charging, especially when using your phone for gaming or video streaming. Use the product in a cool, well -ventilated place (32 - 77°F / 0 - 25°C) and pause use of devices that are charging.

Why doesn't my Powerbank charge my device at the expected wattage?

Charging speed is determined by your device. Each device has a max input limit, and charging power decreases as the battery fills. A 60W cable limits charging to 60W, so use the included 240W cable. High temperatures may also reduce charging speed.

Is the power bank allowed on flights?

Yes, this power bank is flight-approved and complies with air travel regulations in the United Sates and most countries. However, it does not have China's 3C certification and cannot be carried on domestic flights within China.

Why does USB-A port show 0.1W output when the power bank is not connected to any device?

1. Even if the device is unplugged when charging with USB-A, it will continue to output a small current to prevent the device from being fully charged, and it will last for about 2 minutes. 2. In trickle-charging mode, the output of USB-A is 0.1W.

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Anker 737 Power Bank (PowerCore 24000)

Product ID: 726338262

Details

ブランド
Anker
商品の重量
1.39 ポンド
色
ブラック
電圧
5 ボルト
電池の種類
リチウムイオン

⚡140W ultra-fast charging

📏Slim, portable design

🔋24000mAh massive capacity

¥36988

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

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Description

⚡ Power up your hustle with the Anker 737 — fast, fierce, and always ready.

MASSIVE 24000 M AH BATTERY - Keep your devices juiced up all day—charge an iPhone 16 over 4 times or a MacBook Pro once on the go.
USB PD 3 1 COMPATIBILITY - Future-proof your charging with the latest USB Power Delivery standard for versatile device support.
BLAZING 140 W POWER OUTPUT - Charge your MacBook Pro and more at lightning speed—no more waiting around.
SMART DISPLAY FOR REAL TIME INFO - Stay in control with an intuitive screen showing battery life and output wattage at a glance.
SLEEK ULTRA PORTABLE FORM FACTOR - Slim as a glasses case and light as a 500ml bottle—power that fits effortlessly in your bag.

The Anker 737 Power Bank (PowerCore 24000) delivers an impressive 140W output with USB PD 3.1 support, housed in a slim, portable design. Its 24000mAh lithium-ion battery can recharge laptops like the MacBook Pro once and smartphones multiple times, while a smart display keeps you informed of real-time power status. Perfect for professionals who demand rapid, reliable charging on the move.

Specifications

Amazon Bestseller	#3,288 in Computers (See Top 100 in Computers) #2 in Laptop Batteries
Amperage	5 Amps
Asin	B09VPHVT2Z
Battery Cell Type	Lithium Ion
Battery Weight	390 Grams
Brand	Anker
Color	Black
Customer Reviews	4.3 4.3 out of 5 stars (17,220) 4.3 out of 5 stars
Global Trade Identification Number	00194644098728
Is Electric	No
Item Dimensions	15.6 x 5.4 x 5 cm
Item Dimensions L X W X Thickness	5.5L x 4.9W x 15.6Th cm
Item Weight	1.39 Pounds
Manufacturer	Anker
Mfr Part Number	A1289011
Model Number	A1289
Number Of Batteries	1 Lithium Polymer batteries required.
Number Of Items	1
Number Of Ports	3
Output Wattage	140 Watts
Portable	Yes
Unit Count	1 Count
Upc	194644098728
Voltage	5 Volts

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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¥36988

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

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