Product comparison · 2 power banks

Lenovo G0A3140WWW power bank Lithium-Ion (Li-Ion) vs Ugreen PB521 Lithium Polymer (LiPo)

22specifications compared
13differ
9identical
21known for one product only

Key differences

The Ugreen PB521 Lithium Polymer (LiPo) has 1 Wh more battery capacity than the Lenovo G0A3140WWW power bank Lithium-Ion (Li-Ion) (74 Wh vs 73 Wh). The Lenovo G0A3140WWW power bank Lithium-Ion (Li-Ion) has 1 more USB Type-C ports quantity than the Ugreen PB521 Lithium Polymer (LiPo) (2 vs 1). The Lenovo G0A3140WWW power bank Lithium-Ion (Li-Ion) has 2 A more output current than the Ugreen PB521 Lithium Polymer (LiPo) (5 A vs 3 A). Product colour: Gold, Grey on the Lenovo G0A3140WWW power bank Lithium-Ion (Li-Ion), Beige on the Ugreen PB521 Lithium Polymer (LiPo). Charger compatibility: Laptop/netbook on the Lenovo G0A3140WWW power bank Lithium-Ion (Li-Ion), Universal on the Ugreen PB521 Lithium Polymer (LiPo).

Product colour
- G0A3140WWW power bank Lithium-Ion (Li-Ion):Gold, Grey
- PB521 Lithium Polymer (LiPo):Beige
Charger compatibility
- G0A3140WWW power bank Lithium-Ion (Li-Ion):Laptop/netbook
- PB521 Lithium Polymer (LiPo):Universal
Display type
- G0A3140WWW power bank Lithium-Ion (Li-Ion):TFT
- PB521 Lithium Polymer (LiPo):LED
Battery capacity
- G0A3140WWW power bank Lithium-Ion (Li-Ion):73 Wh
- PB521 Lithium Polymer (LiPo):74 Wh
USB Type-C ports quantity
- G0A3140WWW power bank Lithium-Ion (Li-Ion):2
- PB521 Lithium Polymer (LiPo):1
Output current
- G0A3140WWW power bank Lithium-Ion (Li-Ion):5 A
- PB521 Lithium Polymer (LiPo):3 A
Output voltage
- G0A3140WWW power bank Lithium-Ion (Li-Ion):28 V
- PB521 Lithium Polymer (LiPo):5 V
Width
- G0A3140WWW power bank Lithium-Ion (Li-Ion):51 mm
- PB521 Lithium Polymer (LiPo):116 mm

Side by side

Differences highlightedShow differences only

Comparison of G0A3140WWW, PB521
43 specifications	A Lenovo G0A3140WWW power bank Lithium-Ion (Li-Ion) Model G0A3140WWW View product	B Ugreen PB521 Lithium Polymer (LiPo) Model PB521 View product
Design4 differ
Number of simultaneously connected devices (max)	3	3
Product colourDiffers	Gold, Grey	Beige
Housing materialDiffers	Plastic	Polycarbonate (PC), Acrylonitrile butadiene styrene (ABS)
Charger compatibilityDiffers	Laptop/netbook	Universal
Built-in display	Yes	Yes
Display typeDiffers	TFT	LED
Shape	Rectangle	Rectangle
LED indicatorsKnown for one	Yes	Unknown — not stated by the source
Performance1 differ
Charging source	USB	USB
Battery capacityDiffers	73 Wh	74 Wh
Wireless chargingKnown for one	No	Unknown — not stated by the source
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 connectorKnown for one	Yes	Unknown — not stated by the source
USB Type-A output ports	1	1
USB Type-C connector	Yes	Yes
USB Type-C ports quantityDiffers	2	1
Power2 differ
Total output powerKnown for one	140 W	Unknown — not stated by the source
Output currentDiffers	5 A	3 A
Output voltageDiffers	28 V	5 V
Power protection featuresKnown for one	Over voltage, Over current, Overheating	Unknown — not stated by the source
USB Type-C charging portKnown for one	Unknown — not stated by the source	Yes
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 25 °C	Unknown — not stated by the source
Storage temperature (T-T)Known for one	8 - 90 °C	Unknown — not stated by the source
Certificatesidentical
CertificationKnown for one	CB/CE/FCC/IC/cTUVus/CEC/DOE/Nrcan/RCM/CCC/BIS/KC/TISI/CoC/NRCS LoA/ECAS/ANATEL/NOM/EAC/DoC	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	51 mm	116 mm
DepthDiffers	39 mm	70 mm
HeightDiffers	154 mm	30 mm
WeightDiffers	463 g	344 g
Cable lengthKnown for one	1.5 m	Unknown — not stated by the source
Packaging contentidentical
Cables includedKnown for one	USB Type-C	Unknown — not stated by the source
Packaging dataidentical
Package widthKnown for one	171.5 mm	Unknown — not stated by the source
Package depthKnown for one	103 mm	Unknown — not stated by the source
Package heightKnown for one	49 mm	Unknown — not stated by the source
Package weightKnown for one	660 g	Unknown — not stated by the source
Package typeKnown for one	Box	Unknown — not stated by the source
Battery1 differ
Battery technologyDiffers	Lithium-Ion (Li-Ion)	Lithium Polymer (LiPo)
Battery capacity	20000 mAh	20000 mAh

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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