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EFM 20,000mAh Portable Power Bank review

EFM 20,000mAh Portable Power Bank

CHOICE Expert Rating

68%

What is the CHOICE Expert Rating?

Good Points

Can charge a Windows laptop (USB-C).

Bad Points

Bulky size.
Heavy.
Ports are unlabelled.

Recommended products

Recommended

Test results

CHOICE Expert Rating

68%

Performance score

66%

Ease of use score

70%

Display score

75%

Multiple device score

70%

Pocketability guide

Bag

Power bank charge time

5:40

Usable capacity, measured (mAh)

10932

Fastest charging 5V USB port (amps)

3

Slowest charging 5V USB port (amps)

3

Maximum combined output (watts)

Not stated

Overload protection

Yes (3.7)

Short circuit protection

Yes (turns off immediately)

Date tested

Dec-22

Related products

Availability

Tested model

Specifications

Stated capacity (mAh)

20000

Battery type

Lithium

Weight (g)

425

Size (mm, H x D x W)

22 x 168 x 74

Quick charge output

Wireless charging

Charge indicator

4 LEDs

Country of origin

China

Cost

Price

$80.00

Features

Number of USB-A ports

2

Number of USB-C ports

1

Can charge a laptop via USB-C

Can charge a Nintendo Switch

Over-charge protection

Other features

USB-C to USB-A cable supplied.

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