MAX4 Solar - Powered Portable Power Bank

$149.95 $69.95

Estimated delivery between September 09 and September 11.

Buy 2 items, get 5% off

Buy 3 items, get 7% off

Buy 4 items, get 10% off

MAX4  Solar - Powered Portable Power Bank
A compact, rugged solar power bank that delivers versatile charging wherever you go. Equipped with four high-efficiency solar panels, dual USB outputs, and wireless charging capability, it comes ready with a built-in flashlight and magnetic mounting for hands-free use. An essential part of any survival gear kit or survival gear list—perfect for emergencies, outdoor adventures, or off-grid charging.

  • Harness power from sunlight or an AC source—charges the internal 6,500 mAh battery for use anytime.

  • Dual USB ports plus wireless charging pad allow up to three devices—simultaneously or on-the-go.

  • Flip-out solar panels fold compactly, ideal for hiking or travel; magnetic mounts and loops provide secure, flexible placement for charging.

  • Integrated LED flashlight adds practical illumination during nighttime or emergencies.

Solar Panels: 5.5 W, fold-out quad panels

Battery Capacity: 6,500 mAh (actual)

USB Outputs: 2 (5 V / 2 A each)

Wireless Charging: Qi-compatible pad (standard wireless charging)

Flashlight: Integrated LED

Mounting Features: Magnetic mounts + hanging loops

Charging Methods: Solar or USB (5 V / 2 A input)

Dimensions (Closed): 6.13″ × 3.38″ × 1.25″

Dimensions (Open): ~13.88″ span when solar panels unfolded

Weight: 15.7 oz

✅ 180-Day Money-Back Guarantee – For Any Reason
If you’re not 100% satisfied, you can return your product for a full refund within 180 days from the purchase date.
Free return shipping is available if you return the item within 30 days of delivery.

📦 Reasons You Can Return or Request a Refund Include:

  • Changed your mind – no problem!
    You can return your item anytime within the first 6 months for a full refund.
    If you return within 30 days of receiving it, we’ll also cover your return shipping cost.
    Important: For faster processing, please use the prepaid return label we provide within the first 30 days.
    Return shipping cost coverage is capped at $100.
  • Didn’t like the product – maybe it’s too big, too small, or just not right for you. Whatever the reason, you can still return it under our policy.
  • Product damaged or incorrect item received – We’re sorry! This is rare, but it can happen. Notify us within 30 days, and we’ll cover all return shipping costs.
  • Product defect due to technical issues – We’ll replace it for free with a brand-new one.

💪 The Strongest Return Policy in the Industry!

If you’re not happy, we’ll work with you until you are.
However, if we detect abuse of this policy, we reserve the right to stop serving you (we’ve never had to do this, but it’s worth mentioning).

Stay safe. Stay ready. Survive and thrive — even on Doomsday.

At BoongKe, we believe that being prepared isn’t just about survival — it’s about peace of mind and taking control of your future. Whether you're gearing up for a peaceful weekend camping in the wilderness or preparing for the possibility of a full-blown doomsday scenario, the right gear makes all the difference.

Who We Are

Founded with a passion for self-reliance, safety, and adventure, BoongKe has grown into one of the most trusted names in survival and emergency preparedness. Our mission is clear:

Equip everyday people with the tools and knowledge they need to protect themselves and their loved ones — anytime, anywhere, even when the world goes dark.

What We Offer


  • Emergency Survival Gear: From fire starters to gas masks and solar radios, we provide essentials you can count on — whether you’re bugging out or just bugging in.

  • Food & Water Storage: Long-lasting survival rations, canned meat, and clean water solutions — perfect for disaster preps or off-grid living.

  • Outdoor & Camping Equipment: Tents, portable stoves, solar lights, and power sources for camping, overlanding, or living off the grid.

  • Preparedness Education: Tactical guides, prepping tips, and in-depth blog articles to help you make the right move when it matters most.

Why BoongKe?

We don’t just sell products — we use them. We live this lifestyle. Our 1-Year "Any Reason" Refund Guarantee and 3-Year Product Warranty give you the confidence to prepare now, with zero risk.

Our Philosophy

Disasters can be small like a sudden blackout or massive like a global nuclear conflict. While we can't stop doomsday from coming, we can help you face it head-on. With the right camping gear, tools, and mindset, you don’t just survive — you thrive.

BoongKe.com – Your last line of defense.

Stay safe. Stay ready. Survive and thrive.

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Customer Reviews

Based on 19 reviews
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(15)
21%
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j
joseph shoemaker
Great travel solar panels for camping and charging phone

Works and charges great. Good for waterproof camping and travel, especially on the back of a kayak to charge a portable battery!

B
Bill Morgan
Excellent customer service from Power Anywhere

Power Anywhere is an Amazing company. I sent an email to the company asking if the function of the solar panel was normal. Power Anywhere responded with some trouble shooting questions and determined the solar panel was not functioning optimally. They then initiated a replacement from SunJack and sent the replacement to my house free of charge. Truly above and beyond. They could have simply said that was how the product was supposed to work, but went the extra mile to make sure I had a good working product and was satisfied with my purchase.

M
Michael L. Carter
Car Solar Power / Summer Cooling

So far I will give this panel a 5 star. I have mounted this panel to the cargo rack of my car to not only charge devices on the go, but to run a small battery powered fan to move hot air out of my car during the summer. I used weatherproof tape around the connection points for the cables to protect the circuitry connections for the power output. Utilizing rain weather strip that are mounted over the tops of all my windows, and a bug netting designed for camping in the car with windows slightly down; I have been able to keep my car noticeably cooler then when completely sealed.

H
HVZ
7 years later and it's still going.

I bought the 15watt version around 7 years ago. Most of that time it has lived in my sailboat. I hang it outside while at anchor. It's able to charge my phone, a tablet, and a powerbank (one at a time). In the Bahamian sun, it worked like a charm. Going to purchase a larger one now that I have larger power banks. Very happy with my purchase.

J
JT Martin
Excellent product support

Purchased the 40w version 7-8 months ago. It's heavy duty construction and design is worth the extra $$$ in my opinion. I wasn't going to write a review but then a week or so ago, it stopped working. Completely dead. I sent an email to Sunjack customer service and got a very fast reply. After a few diagnostic steps, he asked for my address and sent me a replacement. They stand behind their product. You can't say that for most of these companies today. Sunjack has my business from now on.