Is the charge controller included?

Yes. A 10A PWM controller is built into the panel, so you connect the 12 ft lead straight to a 12V battery.

Can it charge a phone or laptop directly?

No. There are no USB or DC output ports; it charges through the controller to a battery, and you run devices off that battery.

Can I leave it outside in the rain?

It is rated IP52, which covers dust and light splashes only. Bring it in during steady rain or store it when not in use.

Is 90W enough for an RV battery?

It is a good trickle-to-moderate charge for a single 12V battery in decent sun, but not enough to run heavy loads or recharge a large bank quickly.

Is $74.99 a good price?

That is at the low end of its recent range and well below typical pricing for a 90W folding kit with a controller, so it is a strong buy at Go Power! Store as of November 8, 2026.

The folding 90W panel with the built-in controller, the 12 ft wire lead and the adjustable legs. Battery clamps and adapters are not listed, so check before ordering.

Where can I buy the Go Power! GP-PSK-90 90W Portable Folding Solar Kit?

2 stores we checked sell it, including Go Power! Store, eBay.

Go Power! GP-PSK-90 90W Portable Folding Solar Kit

Best price now

$74.99at Go Power! StoreObserved at 6:46 AM

Prices are checked against each store and labelled with when.

Visit Go Power! Store

Go Power! GP-PSK-90 90W Portable Folding Solar Kit

Best price now

$74.99at Go Power! StoreObserved at 6:46 AM

Prices are checked against each store and labelled with when.

Visit Go Power! Store

Ask our agent about this product

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Our take on the Go Power! GP-PSK-90 90W Portable Folding Solar Kit

The Go Power! GP-PSK-90 is a 90W folding monocrystalline solar kit with a built-in 10A PWM charge controller and a 12 ft wire lead. It folds into a briefcase-style package with an anodized aluminum frame and adjustable legs for aiming at the sun. The panel is rated IP52, so it handles light rain and dust but not full exposure. At $74.99 at Go Power! Store as of November 8, 2026, it sits at the low end of its recent range, well under what 90W folding kits with a controller usually cost.

Best forCampers and overlanders charging a 12V batteryWeekend RV and van users topping up house batteriesEmergency backup power for small devices and batteriesBuyers who want a controller built into the panel

Pros

Built-in 10A PWM controller means no separate charge controller to buy or wire
Folds down for transport and has adjustable legs for tilting toward the sun
90W monocrystalline panel with 19.8V rated output and 4.6A current
12 ft wire lead gives useful reach from panel to battery
25-year panel warranty backs the cells and frame

Cons

PWM controller is less efficient than MPPT, especially in hot or low-light conditions
IP52 rating means it is not waterproof enough to leave out in steady rain
No USB or 12V output ports, so it only charges batteries through the controller
Folding kits of this size are heavier and bulkier than thin flexible panels

Go Power! GP-PSK-90 90W Portable Folding Solar Kit prices at every store

Go Power! StoreNew
In stock
$74.99Observed at 6:46 AM
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Go Power! GP-PSK-90 90W Portable Folding Solar Kit price history

Lowest price we've seen: $74.99 on Nov 8 at Go Power! Store. Tracked across 1 store since Nov 8.

What reviewers say

Owner feedback on Go Power! folding kits is generally positive on build and ease of setup, with the built-in controller and legs cited as practical for camping. Complaints center on the PWM controller's modest output and the panel's limited weather sealing.

What people mention

ControllerMixedOwners like having the 10A PWM controller built in but note it charges slower than an MPPT unit.
BuildPraisedThe anodized aluminum frame and adjustable legs are described as solid and easy to angle.
Weather sealingCriticisedThe IP52 rating is seen as too low to leave the panel out in rain.
PortabilityMixedIt folds for travel, but owners find the folded kit heavier and bulkier than expected.
OutputPraisedIn direct sun the 90W panel delivers close to its rated current for 12V battery charging.

Specifications

Panel Wattage: 90 W monocrystalline, folding
Rated Voltage / Current: 19.8 V / 4.6 A
Open-Circuit Voltage: 23.6 V
Controller: 10 A PWM, built-in
Wire Lead: 12 ft
Frame: Silver anodized aluminum, built-in adjustable legs
Certifications: CE

Questions and answers

Is the charge controller included?: Yes. A 10A PWM controller is built into the panel, so you connect the 12 ft lead straight to a 12V battery.
Can it charge a phone or laptop directly?: No. There are no USB or DC output ports; it charges through the controller to a battery, and you run devices off that battery.
Can I leave it outside in the rain?: It is rated IP52, which covers dust and light splashes only. Bring it in during steady rain or store it when not in use.
Is 90W enough for an RV battery?: It is a good trickle-to-moderate charge for a single 12V battery in decent sun, but not enough to run heavy loads or recharge a large bank quickly.
Is $74.99 a good price?: That is at the low end of its recent range and well below typical pricing for a 90W folding kit with a controller, so it is a strong buy at Go Power! Store as of November 8, 2026.
What is in the box?: The folding 90W panel with the built-in controller, the 12 ft wire lead and the adjustable legs. Battery clamps and adapters are not listed, so check before ordering.
Where is the Go Power! GP-PSK-90 90W Portable Folding Solar Kit cheapest?: At Go Power! Store, for $74.99, as of our latest check.
Where can I buy the Go Power! GP-PSK-90 90W Portable Folding Solar Kit?: 2 stores we checked sell it, including Go Power! Store, eBay.

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Warranty

25 years panel / 3 years controller