Grid Doctor 3300 EMP + FREE Grid Doctor 300

Sale price $2,997.00 Regular price $3,494.00
Was: $3,494.00 Today: $2,997.00
You save $497.00 when you order today.
  • Built-In EMP Intercept Technology
  • FREE 200W Waterproof Panel Included
  • Runs large appliances for hours
  • FREE 300W Solar Generator w/ 100W Solar Panel
What's Included
  • (1) Grid Doctor 3300 Solar Generator
  • (1) FREE 200W Waterproof Solar Panel
  • AC charging cable
  • XT60 solar cable
  • XT60 car charging cable
  • Instruction manual (3300)
  • (1) Grid Doctor 300 Solar Generator
  • (1) 100W solar panel
  • Power cable
  • Adapter
  • 12V DC lighter adapter
  • "Y" splitter cable (for dual solar panel connection)
  • Instruction manual (300)
Product Specifications

3300 Generator

  • Battery Type: Lithium Iron Phosphate (LiFePO₄)
  • Capacity: 2048Wh (51.2V/40,000mAh)
  • Inverter: 3300W Pure Sine Wave (6600W surge)
  • Cycle Life: 3,500+ cycles
  • Frequency: 50Hz/60Hz Pure Sine Wave
  • Charge Controller: MPPT Control System
  • Surge Protection: AC 260kA / DC 152kA, 3ns reaction time
  • Dimensions: 18.7" × 11.65" × 12.58"
  • Weight: 57.2 lbs
  • Extra Features: EMP Intercept Technology, UPS functionality, pass-through charging, MPPT controller

Input Ports (3300)

  • AC Charging: 100-120V~60Hz 15A, 1800W Quick Charge / 600W Slow Charge
  • Solar Charging: 12-120V/15A, 1000W Max
  • Car Charging: 12V-8A, 24V-10A

Output Ports (3300)

  • AC Output: 5 Outlets: Rated 3300W (Surge 6600W)
  • USB-A: 2 Ports: 5V-2.4A 12W Total
  • QC 3.0: 2 Ports: 5V-3A/9V-2A/12V-1.5A, 18W 36W Total
  • USB-C: 2 Ports: 5V-3A/9V-3A/12V-3A/15V-3A/20V-5A, 100W PD 200W Total
  • DC Output: 12V-3A 36W Total
  • Car Port Socket: 12V-10A 120W Total
  • GX16 2 Pin (Aviation Socket): 48V-15A 720W Total

Temperature (3300)

  • Discharging: 14°–104°F (-10°–40°C), Recommended 68°–86°F
  • Charging: 32°–104°F (0°–40°C), Recommended 68°–86°F

Certifications (3300): UN38.3

Waterproof Solar Panel (200W)

  • Maximum Power Output: 200W (+/- 5W)
  • Open Circuit Voltage: 25V (23.5V under load)
  • Short-Circuit Voltage: 11.4A (load current 10.5A)
  • Operating Voltage: 21V
  • Operating Current: 9.5A
  • Interface Type: MC4
  • Solar Cell Efficiency: ≥22%
  • Solar Cell Type: Monocrystalline Silicone
  • Operating Temperature: Recommended +77°F (Range -10°–150°F)
  • Dimensions (Folded): 21.5 x 25 x 2.25 inches (546 x 635 x 57mm)
  • Dimensions (Open): 21.5 x 93.8 x 1.5 inches (546 x 2383 x 38mm)
  • Weight: 19.2 lbs (8.7 kg)
  • Certifications: RoHS, FCC, IP68
Manufacturing & Quality

Every Grid Doctor system is built for long-term reliability and critical-moment performance — then tested to meet rigorous safety and quality standards.

  • EMP Intercept Technology: Independently tested to react in 3 nanoseconds, protecting sensitive electronics from EMPs, lightning strikes, and surges. (For 3300 units).
  • Battery Safety & Longevity: Premium Lithium Iron Phosphate (LiFePO₄) chemistry rated for 3,500+ cycles, maintaining capacity far longer than typical lithium-ion batteries.
  • UN38.3 certification for safe transport and handling (generator)
  • RoHS and FCC compliant (solar panel)
  • IP68 waterproof (200W), IP65 waterproof (100W) solar panel rating for use in all weather conditions
  • Performance Verification: All units are tested for electrical output, charge/discharge efficiency, and protective system responsiveness before shipping.
  • Compliance Monitoring: Manufacturing facilities follow strict environmental and safety guidelines, with ongoing audits and inspections to ensure consistent product quality.

This attention to detail means your Grid Doctor isn't just powerful — it's battle-tested and ready for when you need it most.

Battery Safety & Technology

Our Commitment to Safety: The Grid Doctor Battery Advantage

When it comes to backup power, nothing matters more than safety. That's why every Grid Doctor product uses advanced Lithium Iron Phosphate (LiFePO₄) battery technology — not the cheaper, riskier lithium-ion batteries used in many competing systems.

No Fire Risk Like Lithium-Ion

The biggest concern with the lithium-ion batteries found in many competitor products is something called thermal runaway — a chain reaction that can cause overheating, smoke, and even fire or explosions.

This is the same battery chemistry that has caused fires in electric scooters, e-bikes, and even EV recalls.

Grid Doctor's Lithium Iron Phosphate batteries don't do that. They're chemically stable, even under stress. They won't catch fire if punctured, overheated, or overcharged. That's why, in aircraft backup systems and other situations where failure isn't an option, they use the same LiFePO₄ battery technology you'll find in Grid Doctor solar generators and power banks. After all, Grid Doctor systems are designed to operate indoors — often near your family, pets, and valuables. That's why we refuse to compromise on battery safety.

Built to Last 4X Longer

Most lithium-ion batteries degrade quickly, often losing capacity after just 500 charge cycles.

Grid Doctor's LiFePO₄ batteries last for 3,500+ cycles. That's years of use, even if you charge and discharge your power system every day.

This longer lifespan also saves you money, because you won't have to replace your battery system nearly as often.

Reliable Performance in Tough Temperatures

Whether it's a freezing blizzard or sweltering heat wave, you need power that won't fail when you need it most.

While storing your batteries in a temperature-controlled environment is recommended, Grid Doctor's LiFePO₄ batteries perform much better in extreme temperatures than lithium-ion systems. They're far less likely to swell, degrade, or fail under stress.

This makes them a superior choice for home emergency power, bug-out locations, and mobile power needs.

The Bottom Line

We believe the best technology is the safest technology. That's why every Grid Doctor solar generator, expansion battery, and power bank we sell is built around non-flammable Lithium Iron Phosphate cells.

It costs a little more to do it right — but we wouldn't trust anything else to protect your family.

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Disaster Warranty

What the Grid Doctor 3300 Is Built For

The Grid Doctor 3300 is engineered for serious power demands. It's built to provide reliable electricity during:

  • Grid failures and blackouts
  • Severe weather events
  • Off-grid or rural living
  • RV travel and mobile power needs
  • Emergency preparedness scenarios

And unlike standard battery backups, it integrates EMP Intercept Technology designed to help protect connected electronics from surges, lightning events, and electromagnetic disturbances.

What the Grid Doctor 300 Is Built For (Included Free)

The Grid Doctor 300 is built for essential small-to-medium device power needs, offering unmatched portability and flexibility.

It is designed to support:

  • Charging phones, tablets, laptops, and other small devices during outages
  • Powering small appliances and lighting
  • Powering medical support devices such as CPAP machines
  • Off-grid charging during camping or travel
  • Portable backup power for apartments or smaller homes

It is not designed to power large appliances such as full-size refrigerators, microwaves, or HVAC systems — it is optimized for essential loads and mobility.

Choosing the Right Power Setup

This system is built around the Grid Doctor 3300, a high-output solar generator designed to power essential household appliances during outages, while the included Grid Doctor 300 adds a portable layer of backup power for smaller devices and mobility.

Together, they create a more flexible, layered power solution allowing you to cover both home backup needs and portable power situations without relying on a single device.

Well Suited For

Types of users

  • Families preparing for outages who want to keep essential appliances running
  • Homeowners or rural users who want dependable backup power with solar recharge capability
  • Preparedness-minded customers who want both high-output power and portable backup
  • RV owners, travelers, or off-grid users who benefit from both stationary and mobile power options

Types of situations

  • Multi-hour to multi-day outages where refrigeration, lighting, and communication are critical
  • Severe weather events such as hurricanes, ice storms, or heat waves
  • Keeping essential systems running at home while maintaining portable power for devices, lighting, or communication
  • Off-grid use at cabins, job sites, or remote locations where both power capacity and mobility are needed

Level of power need

  • You need appliance-level output (3300W continuous / 6600W surge) for home backup
  • You want to run multiple devices at once while still having a portable power option for smaller electronics
  • You want solar charging capability with the ability to expand over time
  • You value having both high-capacity power and lightweight backup in one system

When Another Option May Be a Better Fit

  • You only need to charge phones, tablets, or small electronics and don't require appliance-level power
  • You want a lightweight, travel-only solution without a larger home backup system
  • You need 240V output for full-home systems or large HVAC equipment

Key Decision Factors

This system combines high-output home backup power with a portable secondary unit, giving you both capacity and flexibility in one setup.

Primary Power System (Grid Doctor 3300)

  • Continuous Output: 3300W (6600W surge)
  • Battery Capacity: 2048Wh (expandable up to 16,384Wh)
  • Battery Type: LiFePO₄ (long-lasting, stable, and safe)
  • Charging Options: Wall, solar (up to 1000W), or vehicle
  • Output Capability: 15 ports including standard AC outlets, RV outlet, USB, and DC
  • Use Case: Designed to run essential household appliances and multiple devices during outages

Portable Backup Power (Grid Doctor 300)

  • Continuous Output: 300W (600W surge)
  • Battery Capacity: 320Wh (LiFePO₄)
  • Charging Options: Wall, solar, USB-C, or vehicle
  • Output Capability: 9 ports for small electronics and essential devices
  • Use Case: Designed for mobile power, communication devices, lighting, and small electronics

System Benefits

  • Layered Power Coverage — Run appliances at home while keeping portable power available
  • Flexible Charging — Recharge via wall, vehicle, or solar depending on your situation
  • Indoor Safe — No fuel, no fumes, safe for use inside the home
  • Preparedness Ready — Designed to support both stationary and mobile power needs

High-Performance Solar Panels Included

This system includes both a 200-watt panel for high-output charging and a 100-watt panel for portable, flexible use, giving you the ability to generate power efficiently in a wide range of conditions.

The 200W panel is designed to maximize solar input for the Grid Doctor 3300, helping recharge your system faster when powering larger loads. The included 100W panel adds a second layer of flexibility — ideal for repositioning, portable setups, or keeping smaller devices powered independently when needed.

  • High-efficiency monocrystalline cells help capture more usable energy from available sunlight, even in less-than-ideal conditions
  • Weather-resistant construction allows panels to remain deployed outdoors in rain, snow, and harsh environments
  • Flexible setup options with fold-out stands and reinforced grommets make it easier to position panels for optimal sunlight
  • Portable, foldable design keeps panels easy to transport and store while still delivering meaningful power output
  • Durable materials and integrated cable management help protect components and simplify setup in the field

Designed to Be Easy to Use

This system is built so you don't need technical experience to get started. Controls are straightforward, connections are clearly labeled, and setup takes only a few minutes. If you can plug in a phone charger, you can operate this system.

For additional help, step-by-step guides and videos are available in our resource center so you can see exactly how everything works before you ever need it. Or you can call our U.S. based preparedness hotline at 866.229.0927 to get all your questions answered.

Availability & Fulfillment

This product is in stock and ready to ship! Orders are fulfilled from our owned and operated US warehouses, typically shipped same day and arrive within 2-3 days of placing your order.

Maintenance & Storage Notes

Grid Doctor Generators are designed for low-maintenance operation. Simple storage and charging practices will help maximize performance and lifespan.

Storage Temperature & Environment

  • Recommended storage temperature: 68°F–86°F (20°C–30°C)
  • Acceptable operating discharge range: 14°F–104°F (-10°C–40°C)
  • Charging temperature range: 32°F–104°F (0°C–40°C)
  • Store in a dry, well-ventilated area away from heat sources and metal objects.

Avoid:

  • Prolonged storage above 113°F (45°C)
  • Long-term exposure to freezing temperatures
  • Direct sunlight in enclosed spaces (such as vehicles)
  • High-humidity or wet environments

Charging Recommendations

  • For long-term battery health, avoid storing the unit fully discharged (at 0%), charge to at least 60% capacity before storing.
  • Recharge every 3 months during extended storage periods.
  • Use only manufacturer-approved cables and accessories.
  • When charging, ensure adequate airflow. The unit may feel warm during charging; this is normal.

Maintenance Requirements

  • This is a sealed LiFePO4 battery system and requires no fuel stabilization, no oil changes, no engine maintenance, and no routine mechanical servicing.
  • Maintenance is limited to keeping ports clean, inspecting cables for wear and occasional charging when stored long term.

Disclaimers & Notes

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Important - Please Read
Read all instructions before using the product. You can find our user manual here.

Use only the cables and accessories provided with your Grid Doctor Products or those explicitly approved for use by Grid Doctor. The use of third-party cables or accessories may affect the performance of your Grid Doctor Generator and could pose safety risks. Grid Doctor is not responsible for any loss, damage, or injury resulting from the use of the above mentioned non-approved accessories or cables.

Grid Doctor 3300 EMP + FREE Grid Doctor 300
Grid Doctor 3300 EMP + FREE Grid Doctor 300
$2,997.00

Why Millions of Americans Choose My Patriot Supply


Independent. Family-Owned. Always Prepared.

We’re not backed by billionaires, bankers, or big corporations. We’re 100% locally-owned and fiercely independent, just like the patriots we serve. That gives us the freedom to do things the right way: craft our own recipes, pack our own kits, and ship every order ourselves. From start to finish, your emergency supplies come straight from our hands to yours – with better quality and better value.

Trusted by More Than 3 Million Americans

Since we started in 2008, we’ve had the honor of serving more than 3 million American families. Over that time, we’ve seen other preparedness companies come and go. My Patriot Supply is in it for the long haul. With over 90,000 5-star reviews and a customer rating of 4.8 out of 5, we’ve earned the trust of patriots across the country.

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We take privacy seriously around here. That means we protect your data like we protect our own. We use secure and trusted payment systems to provide you with a simple and safe checkout experience. We never share your info with 3rd parties, and product reviews can be posted anonymously. Plus, your shipment will always arrive in discreet, unmarked boxes. Nosy neighbors? No worries!

Fast, Reliable Shipping (Seriously Fast)

With massive warehouses strategically placed across the US, most orders ship the same day and arrive within 2 to 3 business days. Everything is packed and shipped by our in-house team for speed and accuracy you can count on. In fact, if you read the reviews on any of our products, you’ll notice a recurring theme: our customers are consistently impressed by how quickly their order arrived.

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If you can’t find what you need, have an issue with your order, or need help with your products, our U.S.-based customer service team is here to help. When you call, you’ll get a real person on the line – no robots, no runaround. Our team is made up of hardworking Americans who know our products inside and out and are dedicated to getting you the answers and support you need. Because taking care of our customers is just as important as preparing them for what’s ahead.

Call us at 1-866-229-0927 or email [email protected]

Free Disaster Replacement Warranty

If your supplies are damaged or destroyed in a natural disaster, we’ll replace them free of charge. After your purchase, just activate your free warranty coverage at the link below, and you’re all set!

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Calories You Can Count On

When it comes to calorie counts in emergency food, a lot of other brands skimp to save a buck. Some even deliver as few as 1,200 calories per day. Not here. All My Patriot Supply emergency food kits provide at least 2,000 calories per person, per day – with real meals that actually taste good.

Built to Last with Disaster-Durable Packaging

Our products are made to get you through tough times, and the packaging is built to outlast them. We seal our food in ultra-thick, four-layer resealable pouches with oxygen absorbers to lock out air, light, and moisture. And our buckets are made of extra thick polypropylene with structural reinforcements, so you can stack them as high as you need to.