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Borofone Powerbank 20000mAh BJ78A Clever - 2xUSB - Schwarz

20000 mAh, 10 W, 74 Wh
Save CHF1.60 CHF0.18/1Wh
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Product details

Borofone Power Bank BJ78A Clever 20000mAh – 2×USB – black is a spacious and reliable portable battery that ensures long-lasting power supply for your devices while traveling. Made from lithium-polymer cells and an ABS+PC casing, it combines durability with elegant design.

The BJ78A Clever features dual USB-A outputs for simultaneous charging of two devices and a universal USB-C/Micro-USB input for fast recharging of the power bank. A well-readable LED display allows for continuous monitoring of the charge status.

  • Capacity: 20000 mAh (74 Wh); Rated capacity: 11000 mAh
  • Input: USB-C/Micro-USB – 5 V/2 A
  • Output USB-A1/A2: 5 V/2 A (total 5 V/2 A)
  • Display: LED – Charge status
  • Material: ABS+PC + lithium-polymer cells
  • Dimensions: 146 × 69 × 40 mm; Weight: 600 g.

Key specifications

Additional properties
LED battery status indicator
USB ports
1 x Micro USB, 1 x USB-C, 2 x USB
Capacity
20000 mAh
Power capacity
74 Wh
Weight
600 g

General information

Item number
62852884
Manufacturer
Borofone
Category
Powerbanks
Release date
9.10.2025
Sales rank in Category Powerbanks
118 of 3626

Colour

Colour
Black
Exact colour description
Black

Material

Material group
Plastic
Material
ABS+PC

Power bank properties

Powerbank type
Powerbank
Additional properties
LED battery status indicator

Connections

USB ports
1 x Micro USB, 1 x USB-C, 2 x USB

Power supply

output voltage
5 V
Electric current output
2 A
Nominal power
10 W

Battery properties

Battery type
LiPo
Capacity
20000 mAh
Power capacity
74 Wh

Origin

Country of origin
China

Voluntary climate contribution

CO₂ emissions
2.99 kg
Climate contribution
CHF 0.11

Product dimensions

Length
146 mm
Width
69 mm
Height
40 mm
Weight
600 g

Package dimensions

Length
18.40 cm
Width
8.70 cm
Height
3.20 cm
Weight
451 g

30-day right of return
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Powerbanks» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • Borofone
    Not enough data
  • 1.Skross
    0.2 %
  • 1.Voltcraft
    0.2 %
  • 3.Charmast
    0.5 %
  • 3.Obal:Me
    0.5 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • Borofone
    Not enough data
  • 1.Adata
    0 days
  • 1.Anker
    0 days
  • 1.Aukey
    0 days
  • 1.Baseus
    0 days

Return rate

How often is a product of this brand in the «Powerbanks» category returned?

Source: Digitec Galaxus
  • Borofone
    Not enough data
  • 1.Native Union
    0 %
  • 1.Thule
    0 %
  • 3.Awei
    0.5 %
  • 3.FreeVoice
    0.5 %
Source: Digitec Galaxus