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Pink rectangular power bank with four USB ports and digital display

ViewSonic

ViewSonic J2651 35W 20000mAh Power Bank Pink

SKU CH-81ZA-WMA0T

A 20000 mAh power bank with two USB-C and two USB-A ports delivering up to 35 W fast charging

  • Total capacity20,000 mAh
  • Compatible phone brandsSmartphones,tablets,laptops,smartwatches
  • Compatible phone modelsSmartphones,tablets,laptops,smartwatches
  • Battery chemistryLithium polymer
  • Voltage5 V
  • Amperage3 A
  • Charge phones to 60% in 30 minutes with 35W output
  • Four devices simultaneously via two USB-C and two USB-A ports
  • 20000mAh capacity keeps multiple devices powered all day
  • Recharge the bank itself in 2 hours at 35W input
  • Digital display plus auto shut-off and over-charge protection

ViewSonic J2651 20000mAh Power Bank

The ViewSonic J2651 is a 20000mAh lithium polymer power bank with 35W USB-C Power Delivery and Quick Charge 4.0. It suits travellers and commuters who need to keep smartphones, tablets, laptops and smartwatches powered throughout a full day away from wall sockets.

Easy setup with four ports and a display

Plug a cable into any of the two USB-C or two USB-A ports and charging begins automatically. The digital display shows remaining capacity. Both USB-C ports accept input up to 35W so the bank itself recharges in about two hours. Only the rated 13000mAh at 5V/3A is guaranteed for connected devices; energy conversion rate exceeds 60 percent.

35W bi-directional USB-C decides fit

Each USB-C port handles 5V/9V at 3A, 12V at 2.5A, 15V at 2.3A and 20V at 1.75A for both input and output. If your laptop or tablet requires more than 35W over USB-C, this unit will not deliver full speed. Buyers needing higher wattage or more than four simultaneous connections should look elsewhere.

How it compares

Measured against everything we stock in Portable Chargers & Battery Packs, at today’s prices. Recalculated every night.

Price $20.99
Cheaper than about 90% of the 1,307 comparable items (median $36.99).

Specifications

Product
Brand nameViewSonic
Model nameJ2651
Part numberJ2651
Total capacity20,000 mAh
Product type20,000 mAh
Product colorPink
Ports & slots
Output typeUSB Type C*2, USB Type A*2
InputUSB Type C*2, USB Type A*2
Power
Battery chemistryLithium polymer
Voltage5 V
Amperage3 A
Size & build
Measurements5.39 in × 2.76 in × 1.02 in
Product weight13.82 oz
Compatibility
Compatible phone brandsSmartphones,tablets,laptops,smartwatches
Compatible phone modelsSmartphones,tablets,laptops,smartwatches

Questions about this item

How can I confirm the 35 W fast charge is active on the USB-C ports?

The digital display shows real-time voltage and current; when a compatible device negotiates 20 V at 1.75 A or 15 V at 2.3 A the 35 W rate is engaged

What accessories are included and which cables must I provide?

The power bank itself is supplied; USB-C to USB-C and USB-C to USB-A cables for charging devices or recharging the bank are not included

Should I choose the 20 000 mAh model or a lower capacity version?

Only the 20 000 mAh 74 Wh version with 35 W bi-directional USB-C ports and four total outputs is listed; no smaller capacity variant appears in the specifications

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