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SOKOO 22W 5V Review

A reasonably priced panel that can charge devices with relative speed, but lacks the efficiency of other large-capacity panels we reviewed.
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Price:  $60 List | $59.99 at Amazon
Pros:  Inexpensive, works well for small devices, decent performance in cloudy conditions
Cons:  Heavy, slow to charge
Manufacturer:   SOKOO
By Jane Jackson ⋅ Senior Review Editor  ⋅  Nov 11, 2019
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64
OVERALL
SCORE


RANKED
#12 of 14
  • Charging Speed - 30% 7
  • Charge Interruption Recovery - 20% 6
  • Multiple Device Charging Speed - 20% 5
  • Weight & Portability - 20% 6
  • Durability - 10% 9

Our Verdict

We were excited to compare the popular Sokoo 22W to our other top-ranking large capacity panels. As it turns out, it's similar to others we've tested in the past but did not outshine our previous favorites for several reasons. Though it is heavy and not the most efficient of the 20W panels we tested, it is inexpensive and performs well. For car camping trips and other outdoor use where ounces are not a huge concern, it's a great option.


Compare to Similar Products

 
This Product
SOKOO 22W 5V
Awards  Editors' Choice Award Best Buy Award   
Price $59.99 at Amazon$59.99 at Amazon$39.99 at Amazon$35 List$39.99 at Amazon
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Pros Inexpensive, works well for small devices, decent performance in cloudy conditionsInexpensive, efficient, user-friendly, excels in partly cloudy conditionsInexpensive, lightweight, portable, charges quicklyRelatively lightweight for panel type, inexpensive, charges devices efficientlyLarge storage pocket, comes in multiple colors, durable
Cons Heavy, slow to chargeBulky, heaviest weightLow output power, cannot charge multiple devices at onceIneffective if relying only on solar for power, less durable than other battery packsHeavy, bulky
Bottom Line A reasonably priced panel that can charge devices with relative speed, but lacks the efficiency of other large-capacity panels we reviewed.We were impressed by its ability to charge our gadgets quickly and reliably; its reasonable price is the cherry on top.This panel impressed us with its fast charging speeds and its lightweight, portable design.An efficient, compact battery pack with a 2W solar charger on it; a top performer.Well designed, comes in multiple colors, and is durable - but also bulky.
Rating Categories SOKOO 22W 5V BigBlue 28W ECEEN 13W Renogy 15,000mAh PowerGreen 21W
Charging Speed (30%)
10
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7
10
0
9
10
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8
10
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7
10
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7
Charge Interruption Recovery (20%)
10
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6
10
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9
10
0
6
10
0
5
10
0
7
Multiple Device Charging Speed (20%)
10
0
5
10
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9
10
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4
10
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7
10
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6
Weight & Portability (20%)
10
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6
10
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5
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9
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9
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7
Durability (10%)
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9
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7
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6
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7
Specs SOKOO 22W 5V BigBlue 28W ECEEN 13W Renogy 15,000mAh PowerGreen 21W
Panel Size (watts) 22W 28W 13W 2W 21W
Weight (measured) 18.7 oz 23.5 oz 12 oz 9.5 oz 20.3 oz
# of USB outlets 2 2 2 2 2
Max USB Output Current (amps per port) 2.4 amp 2 amp 2 amp 2 amps 2 amp
Battery kit? No No No Yes No
Size folded 12.20" x 6.69" x 1.6" 11.1" x 6.3" x 1.3" 11.4" x 6.1" x 0.6" 6.3" x 3.1" x 0.7" 11.4" x 6.8" x 1.3"
Battery? No No No Yes No
Charge tablet? No Yes Yes No Yes
Charge laptop? No Yes No Npo No
Panel Type Mono-crystalline PET Polymer Mono-crystalline Mono-crystalline Mono-crystalline
Size opened 12.2" x 13.4" x 0.8" 33.1" x 11.1" x 0.2" 11.4" x 14.3 x .15" 6.3" x 3.1" 0.7" 27.6" x 11.4" x 0.2"
Battery input (Volts / Amps) n/a n/a n/a 5V 2A n/a
Charge capacity (mAh) n/a n/a n/a 15,000mAh n/a
Charge iPhone/smartphone Yes Yes Yes Yes Yes
Direct USB Plug? Yes Yes Yes Yes Yes
Daisy Chain? No No No No No
12-Volt connection No No No No No
Warranty 18 months 2 years 30 day return 1 year 1 year

Our Analysis and Test Results

This folding, three-panel solar charger is efficient, durable, and similar in design to the majority of the other panels we've reviewed. The downside to the Sokoo is its weight, as it weighs in as one of the heaviest in the fleet. On the plus side, it performs decently well in intermittently sunny conditions and can charge small gadgets relatively quickly and efficiently.

This small tab is meant to attach a carabiner to for hanging. We could not find any use for this.
This small tab is meant to attach a carabiner to for hanging. We could not find any use for this.

Performance Comparison



Charge Interruption Recovery


The variable conditions found in the Southwestern desert in the springtime made great opportunities to test these its ability to charge in less than ideal weather. We placed the Sokoo 22W in the sun on a partly cloudy day and monitored it as it charged our small test battery. In this weather, the Sokoo charged on and did not disconnect from the battery, even after brief periods of shade.

To further test the Sokoo's performance in this metric, we plugged it into a battery pack and intermittently covered it for 30 minutes. Most panels could hardly hold a charge during this test, but the Sokoo managed to charge our battery pack from 24% to 26%.

The Sokoo struggles to charge our small battery in cloudy conditions.
The Sokoo struggles to charge our small battery in cloudy conditions.

Charging Speed


The Sokoo 22W charged our small electronics with ease. From iPhones to external batteries of varying sizes, it had very few problems when it came to efficient charging. Over a 30-minute period, it charged an iPhone 6 from 22% to 51%. We also plugged the Sokoo into our external test battery and timed it as it charged from 0% to 9% over the course of the 30-minute period. This performance was a bit underwhelming compared to the other 20W panels we tested.

Similar in overall size to the majority of the 20W panels we tested  the Sokoo weighs significantly more than most other options.
Similar in overall size to the majority of the 20W panels we tested, the Sokoo weighs significantly more than most other options.

Multiple Device Charging Speed


Once we plugged two battery packs into the Sokoo 22W, we noticed that the panel slowed down significantly. With one battery, it delivered a steady charge when placed in full sun, but with two batteries, it hardly charged either over the course of an afternoon. This was unsurprising, as we noticed similar trends among all the other 20W panels we tested.

The storage pocket keeps you cords organized and protects the dual USB ports on the Sokoo 22W.
The storage pocket keeps you cords organized and protects the dual USB ports on the Sokoo 22W.

Durability


Like almost every other panel in this review, the Sokoo 22W is designed to be relatively weatherproof and durable. The outside of the panel is covered in a canvas covering, and the panels themselves were able to endure multiple testing periods. The panel does get hot when exposed to the sun for longer periods of time, but the USB ports are protected by a pocket, which adds to the overall durability of the panel.

A close-up of the Sokoo solar cells shows the plastic coating that protects the cells themselves.
A close-up of the Sokoo solar cells shows the plastic coating that protects the cells themselves.

Weight & Portability


This metric is one where the Sokoo did not impress. Very few visible details set apart the majority of these portable panels, so weight is a way to separate the best panels from the mediocre options. The Sokoo is one of the heavier panels in our fleet, weighing around five ounces more than most of the three-paneled chargers we tested.

The Sokoo is both slightly larger and slightly heavier than the other 20W panels we reviewed in the past.
The Sokoo is both slightly larger and slightly heavier than the other 20W panels we reviewed in the past.

Value


The Sokoo is one of the least expensive 20W panels we tested. If cost is a concern, but you're looking for a panel that will charge your gadgets quickly, or in marginal conditions, the Sokoo is a good choice.

Conclusion


The Sokoo is a decent panel; it was neither our top pick nor the worst panel in the fleet. Its positive attributes are its efficiency and cost, while its downsides are its weight and inability to charge multiple devices at once. The panel is durable and well made but did not perform well enough to top any charts.


Jane Jackson