Product comparison · 2 power banks

Sandberg SemiSolidState Powerbank 20000 vs Ugreen PB521 Lithium Polymer (LiPo)

21specifications compared
10differ
11identical
26known for one product only

Key differences

The Ugreen PB521 Lithium Polymer (LiPo) has 1 more simultaneously connected devices (max) than the Sandberg SemiSolidState Powerbank 20000 (3 vs 2). The Sandberg SemiSolidState Powerbank 20000 has 1 more USB Type-C ports quantity than the Ugreen PB521 Lithium Polymer (LiPo) (2 vs 1). The Ugreen PB521 Lithium Polymer (LiPo) has 47.2 mm more width than the Sandberg SemiSolidState Powerbank 20000 (116 mm vs 68.8 mm). Product colour: Black on the Sandberg SemiSolidState Powerbank 20000, Beige on the Ugreen PB521 Lithium Polymer (LiPo). Display type: LCD on the Sandberg SemiSolidState Powerbank 20000, LED on the Ugreen PB521 Lithium Polymer (LiPo).

Number of simultaneously connected devices (max)
- SemiSolidState Powerbank 20000:2
- PB521 Lithium Polymer (LiPo):3
Product colour
- SemiSolidState Powerbank 20000:Black
- PB521 Lithium Polymer (LiPo):Beige
Display type
- SemiSolidState Powerbank 20000:LCD
- PB521 Lithium Polymer (LiPo):LED
USB Type-C ports quantity
- SemiSolidState Powerbank 20000:2
- PB521 Lithium Polymer (LiPo):1
Output voltage
- SemiSolidState Powerbank 20000:5/9/12 V
- PB521 Lithium Polymer (LiPo):5 V
Width
- SemiSolidState Powerbank 20000:68.8 mm
- PB521 Lithium Polymer (LiPo):116 mm
Depth
- SemiSolidState Powerbank 20000:143.8 mm
- PB521 Lithium Polymer (LiPo):70 mm
Height
- SemiSolidState Powerbank 20000:28 mm
- PB521 Lithium Polymer (LiPo):30 mm

Side by side

Differences highlightedShow differences only

Comparison of 421-49, PB521
47 specifications	A Sandberg SemiSolidState Powerbank 20000 Model 421-49 View product	B Ugreen PB521 Lithium Polymer (LiPo) Model PB521 View product
Design3 differ
Number of simultaneously connected devices (max)Differs	2	3
Product colourDiffers	Black	Beige
Charger compatibility	Universal	Universal
Built-in display	Yes	Yes
Display typeDiffers	LCD	LED
Shape	Rectangle	Rectangle
Housing materialKnown for one	Unknown — not stated by the source	Polycarbonate (PC), Acrylonitrile butadiene styrene (ABS)
Performanceidentical
Charging source	USB	USB
Battery voltageKnown for one	3.7 V	Unknown — not stated by the source
Battery capacity	74 Wh	74 Wh
Built-in radioKnown for one	No	Unknown — not stated by the source
Fast charging	Yes	Yes
Fast charging technologyKnown for one	Unknown — not stated by the source	Quick Charge 3.0
USB Power Delivery (USB PD)Known for one	Unknown — not stated by the source	Yes
USB Power Delivery up toKnown for one	Unknown — not stated by the source	30 W
Battery charge time (USB)Known for one	Unknown — not stated by the source	4 h
Ports & interfaces1 differ
Input interface	USB Type-C	USB Type-C
USB Type-A output ports	1	1
USB Type-C ports quantityDiffers	2	1
USB Type-C connectorKnown for one	Unknown — not stated by the source	Yes
Power1 differ
USB Type-C charging port	Yes	Yes
Input voltageKnown for one	5/9 V	Unknown — not stated by the source
Input currentKnown for one	3/2 A	Unknown — not stated by the source
Port 1 output powerKnown for one	20 W	Unknown — not stated by the source
Port 2 output powerKnown for one	18 W	Unknown — not stated by the source
Output current	3 A	3 A
Output voltageDiffers	5/9/12 V	5 V
Port 1 output currentKnown for one	3 A	Unknown — not stated by the source
Port 2 output currentKnown for one	3 A	Unknown — not stated by the source
Certificatesidentical
Compliance certificatesKnown for one	CE, Federal Communications Commission (FCC), UKCA	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	68.8 mm	116 mm
DepthDiffers	143.8 mm	70 mm
HeightDiffers	28 mm	30 mm
WeightDiffers	409 g	344 g
USB Type-C cable lengthKnown for one	30 cm	Unknown — not stated by the source
Cable lengthKnown for one	0 m	Unknown — not stated by the source
Packaging contentidentical
Cables includedKnown for one	USB Type-C to USB Type-C	Unknown — not stated by the source
Packaging contentKnown for one	1 Sandberg SolidState Powerbank 20000 20W 1 Quick guide 1 Charge cable USB-C to USB-C 30 cm 1 GPSR Safety guide	Unknown — not stated by the source
Quick start guideKnown for one	Yes	Unknown — not stated by the source
Packaging dataidentical
Package widthKnown for one	91 mm	Unknown — not stated by the source
Package depthKnown for one	31 mm	Unknown — not stated by the source
Package heightKnown for one	169 mm	Unknown — not stated by the source
Package weightKnown for one	500 g	Unknown — not stated by the source
Package typeKnown for one	Hanging box	Unknown — not stated by the source
Battery1 differ
Battery technologyDiffers	Semi-solid-state	Lithium Polymer (LiPo)
Battery capacity	20000 mAh	20000 mAh
Logistics dataidentical
Warranty periodKnown for one	5 year(s)	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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