Grid Doctor 3300 Solar Generator Review

About the Grid Doctor 3300

With the power to run multiple appliances at once, even heavy hitters like full-size refrigerators, heaters and microwaves, this solar generator can handle 3300 watts of power demand. Pair that with the latest tech, an impressive battery capacity and the option to add up to seven expansion battery packs, and you’re left with a machine that’s capable of powering all the essentials in your home or providing creature comforts on the go.

Features & Specifications

If you like to dig deep into a product’s specs and features before you buy, we get it—and we’ve got you covered:

Tech Specs

• Power Output: 3300W
• Frequency: 50Hz/60Hz pure sine wave
• Battery Type: LiFePO4
• Battery Capacity: 2,048Wh, expandable to 16,384Wh with seven expansion packs
• Battery Life: 3,500 cycles
• Output Ports: 5 AC wall outlets, 2 USB-A ports, 2 USB-C ports, 2 QC 3.0 ports, DC outlet, car port socket, aviation socket
• Input Ports: AC wall plug, solar plug, car charging 
• Charge Controller: MPPT system 
• Dimensions: 18.7 x 11.65 x 12.58 inches
• Weight: 52 pounds

Features

Here are some of the main features that differentiate the Grid Doctor 3300 from others on the market. This can help you determine if it’s the right model for your needs. 

• Powerful Inverter: This model boasts 3,300 watts of energy to power multiple larger appliances at once
• Expandable Battery: Add up to seven expansion packs to increase your energy reserve from 2,048 to 16,384Wh
• Tech Upgrades: Including maximum power point tracking (MPPT) charge controller, pass-through charging and uninterrupted power supply (UPS) protection
• Solar Panel: A fully waterproof, packable and portable 200W solar panel is included with purchase, and can be connected with up to four panels for maximum solar charging
• More Outlets: With 15 charging ports, including five AC wall plug outlets, plus USB ports, DC ports and more, this model has your charging needs covered

Performance

There’s no doubt that this solar generator is powerful and capable. Here’s a closer look at how it performs in terms of battery, tech features and run time:

Power Tower

Stack up to seven expansion batteries to build your “power tower,” taking your power reserve from 2,048Wh to 16,384Wh. These expansion packs neatly stack and easily connect to your Grid Doctor 3300, allowing you to charge and store them together, and break them down for dispersed power wherever you need it most.

Tech Features

This model features some of the latest technology available, including UPS protection, pass-through charging and maximum power point tracking (MPPT). Here’s what that means and how it can benefit you:

• UPS Protection: UPS stands for “uninterrupted power supply” and provides an instant transition from grid to generator, which means in the event of an outage, there is zero downtime for vital equipment like medical devices, refrigerators and freezers.
• Pass-Through Charging: Allows you to use the generator while it’s charging, providing uninterrupted power to your most important devices. This also results in less wear on the battery and prolonged battery life. 
• MPPT Charge Controller: Like a personal assistant for your solar generator, the MPPT regulates the rate at which a battery’s charge is added to or drawn from, protecting the lifespan of your battery and optimizing power output and performance.

Run Time

The 3,300 watts of energy generated by the Grid Doctor 3300 means you can run large appliances, and multiple appliances simultaneously, without skipping a beat. 

Here is the estimated run time for various equipment:

• Drone: up to 25 recharges
• Laptop: up to 40 recharges
• Phone: up to 200 recharges
• High-Powered HAM Radio: up to 1 hour
• Sump Pump: up to 2 hours
• Small Window AC: up to 2 hours
• Orbital Sander: up to 3 hours
• Coffee Maker: up to 4 hours
• Washing Machine: up to 4 hours
• Refrigerator: up to 6 hours
• Microwave: up to 13 hours
• 40-Inch LED TV: up to 40 hours

Price & Availability

The Grid Doctor 3300 is sold as a bundle with the 200W solar panel and all necessary charging cables, and is available on the company’s website as well as other online retailers. 

While it is a sizable initial investment at its regular retail price of $2,797, mypatriotsupply.com offers generous discounts and frequent sales on this item. At the time this article was written, the bundle was on sale for just $1,997, which is an $800 savings.

My Patriot Supply also offers an option to make monthly installments on this purchase, with no credit check required and no additional interest or fees—a great option to help break up the larger purchase price into more manageable monthly payments. 

As an added bonus, military and first responders receive a 10 percent discount for purchases through My Patriot Supply, so that is a great way to save even more. There is a quick and easy verification process on the company’s website to get the process started.

Grid Doctor 3300 vs. the Competition

There are a number of reasons the Grid Doctor 3300 is a superior choice. For one, at 6,600W, it has more peak surge power than most competitors, which tend to max out at 5,000W. It can also run 30AMP compared to the competition’s 20AMP. The Grid Doctor 3300 can also stack seven power units to achieve more than 16,000Wh. Most competitors can only stack two for a total of 7,500Wh.

Here’s a more detailed look at how the Grid Doctor stacks up against other popular picks like it: 

Bottom Line: Why We Love It

Powerful, portable and reliable—that’s why the Grid Doctor 3300 Solar Generator System tops our list. We love that it incorporates the latest technology like UPS protection, maximum power point tracking (MPPT) and pass-through charging for optimized output, prolonged life and instant, uninterrupted power during an outage. We also love that it comes with a powerful, 200W solar panel that’s fully waterproof and has a rugged design perfect for outdoor use. The company provides a 30-day, no-questions-asked return policy for peace of mind, and if you purchase through My Patriot Supply, you also get the added benefit of their 30-day price-match guarantee and easy installment plan option with no credit check required.