Why does the digital display show the battery capacity decreasing rapidly while charging a phone?

Anker Power Bank has a battery capacity of 5,000mAh. Due to efficiency losses in the conversion circuit, its rated capacity at 5V is about 3,000mAh. Therefore, it is normal for the product to lose about 3% of power per minute during use.

Why is my power bank providing fewer charges than expected?

The capacity reduction during charging is due to a 30% to 45% energy loss in the battery cells and conversion circuitry. Therefore, a fully charged 5,000mAh Anker Power Bank offers an estimated 2,750mAh to 3,500mAh to power devices.

How many times can the product charge devices in power bank mode?

In power bank mode, it can fully charge an iPhone 13 once, provide about 0.9 charges for iPhone 14/15, about 0.8 charges for Samsung S23, and about 0.7 charges for S23 Ultra.

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

To estimate charges, use this formula: (Power Bank Capacity × 0.7) ÷ Device Battery Capacity. For example, an iPhone 15 with a 3,877mAh battery can receive about 0.9 charges from a 5,000mAh power bank (calculated as (5,000mAh × 0.7) ÷ 3,877mAh).

Is it normal for the power bank to get slightly warm during use?

Slight heating due to efficiency losses in the conversion circuit is normal. The temperature of this Anker Power Bank meets the temperature limits of the IEC62368 certification standard.

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⚡ Power up anywhere, anytime—because your hustle never stops.

POWER ON THE GO - Ultra-compact 3.25" x 1.95" x 1.22" design fits effortlessly in your bag or pocket.
ECO SMART CERTIFIED - ClimatePartner certified for guilt-free power that aligns with your sustainable lifestyle.
LIGHTNING FAST CHARGE - 30W max output delivers rapid power to iPhone 14, Galaxy, MacBook, and more—no waiting around.
ALL IN ONE CONVENIENCE - Built-in Lightning cable plus foldable AC plug means zero extra cables or bulky adapters.
DUAL RECHARGE FLEXIBILITY - Recharge the power bank itself via AC plug or Lightning cable—never get stranded without juice.

The Anker 3-in-1 Power Bank packs a 5000mAh lithium polymer battery into a sleek, ultra-portable design featuring a built-in Lightning cable and foldable AC plug. With 30W max fast charging and dual recharge options, it’s engineered for seamless power delivery to iPhone 14 series, Galaxy, MacBook, and more, all while supporting eco-conscious users with ClimatePartner certification.

€ 62.40

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Slovakiastore

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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Fantastic and great service. Shipping was faster than expected.

1 week ago

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Battery Cell Type	Lithium Polymer
Color	Blue
Recommended Uses For Product	Outdoor
Item Dimensions L x W x Thickness	3.25"L x 1.95"W x 1.22"Th
Voltage	5 Volts
Power Source	Battery
Connector Type Used on Cable	USB-C1+Built-in Lightning Cable1
Battery Capacity	5000 Milliamp Hours
Additional Features	Fast Charging

Anker3-in-1 Power Bank, 5,000mAh Portable Charger with Built-in Lightning Cable and Foldable AC Plug, 30W Max Compact Battery Pack, for iPhone 14 Series, Galaxy, MacBook, and MoreClimatePartner certified

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