Grid Doctor Resource Page

| Charging Your Grid Doctor 3300

| Powering Your Devices with the Grid Doctor 3300

To do this, press and hold the Main Power Button for 3 seconds. Note that a quick press of the button won’t work, you need to PRESS and HOLD the main power button for 3 seconds or until it beeps (this long button press is required to prevent the unit from being turned on accidentally).

Once the unit is turned on, the display will indicate the current power available. If the remaining power is less than 10%, please recharge the battery. To turn off, press and hold the Main Power Button for 3 seconds. The display will show “OFF” and then go blank.

Powering USB DEVICES

1. Press the USB Power Button to turn on the USB ports. The display will indicate the USB ports are on. (Note: quick-press the USB power button – you do not need to press and hold).
2. Plug a USB charging cable (not included) into the appropriate USB-A or USB-C port.
3. Plug the other end of the USB charging cable into the USB device.

Powering AC (Wall Outlet)-Powered Devices

1. Press the AC Power Button to turn on the AC outlets. The display will indicate the AC outlets are on. (Note: quick-press the AC power button – you do not need to press and hold).
2. Plug in the AC Charging Cable from the intended AC equipment and use as normal. The Grid Doctor 3300 Battery is equipped with four 20amp outlets and one 30amp outlet for RV use.

Powering 12-Volt Devices (like devices designed to be plugged into a car’s 12v outlet, for example)

1. Press the DC Power Button to turn on the DC ports. The display will indicate the DC ports are on. (Note: quick-press the DC power button – you do not need to press and hold).
2. Plug the device into the Cigarette Lighter Port, Aviation Port, or DC5521 Port.

| UPS (UNINTERRUPTIBLE POWER SUPPLY)

Uninterruptible Power Supply (UPS) is a handy feature that lets your Grid Doctor swap from grid power to battery power instantly any time the power goes out. This way, your essential devices keep running with no hiccups.

To use the UPS feature, connect your power station to a wall outlet with the AC Charging Cable, then press the AC Power Button and connect your devices via the AC outlets.

1. Once you turn on the electrical device, it makes use of the AC grid power directly.
2. When the utility (grid) power is cut off, it will automatically switch to the GRID DOCTOR 3300 Battery’s power.

| Expand Your Grid Doctor’s Battery Capacity w/ 3300XP Expansion Batteries (sold separately)

The Grid Doctor 3300 Battery can connect up to 7 Grid Doctor 3300XP or 2200XP Expansions Batteries at the same time. This increases the overall capacity of your Grid Doctor 3300 Solar Generator System to 16384Wh.

1. Before connecting a Grid Doctor Expansion Battery, please make sure the power to both your 3300 Battery and Expansion Battery units are turned off.
2. Connect the Smart Expansion Battery Cable to the 3300 Expansion Battery Port. Connect the other end of the battery expansion cable to the RIGHT SIDE (Port 1) battery expansion port of the 3300XP Battery. For additional expansion batteries, always connect Smart Expansion Battery Cable from LEFT SIDE (Port 2) to RIGHT SIDE (Port 1) as shown below.
3. After connecting the 3300XP Expansion Battery/batteries, power on the 3300 Battery and make sure the display shows the “Battery Expansion” icon before using.
4. Before connecting or disconnecting the expansion battery/batteries, first turn off the power of each connected unit.

| FREQUENTLY ASKED QUESTIONS

1. My appliance/device’s power is within the rated output power range of the product but it’s not working when I plug it into the Grid Doctor. What’s going on?
The battery of the GRID DOCTOR is low and needs to be recharged. When some electrical appliances start up, the peak surge power is higher than the rated surge power of the 3300 Solar Generator System. The nominal power of the electrical device is greater than the power that can be supplied by the 3300 Solar Generator System. Please check the power requirements of the electrical device and verify it can be powered by the 3300 Solar Generator System.

2. Why is there a noise when using my Grid Doctor?
The noise comes from the cooling fan, which cycles on and off during use depending on temperatures. This is perfectly normal. There can also sometimes be a faint noise caused by a relay that switches when you start or stop using it.

3. Is it normal for the AC Charging Cable to heat up during use?
Yes, and it’s nothing to worry about. The AC Charging Cable complies with national safety standards and has passed certification.

4. What devices can the Grid Doctor 3300 Solar Generator support through the AC outlets?
The AC outlets are rated for 3300W. They are able to power most home appliances with a power rating lower than 3300W. Please make sure the total load is under 3300W before use (most devices/appliances/power tools etc. have their wattage rating printed somewhere on the device itself).

5. How do I find out how much power the Grid Doctor 3300 Battery has remaining?
Please check the display. The remaining power is shown by percentage.

6. How do I know the Grid Doctor 3300 Battery is charging?
When the battery is charging, the “INPUT” wattage will be shown on the display and the power percentage will blink.

7. How should I clean the Grid Doctor 3300 Solar Generator System?
Use a dry, soft cloth or tissue to wipe the product. Do not use harsh chemical cleaners.

8. How should I store the Grid Doctor 3300 Solar Generator System?
Please store your Grid Doctor in a dry environment away from water sources. We recommend storing the 3300 Battery unit in a temperature-controlled location, plugged into a power source (AC or Solar). This ensures your battery is fully charged and ready to use in case of an emergency. If you are unable to store the battery plugged into a power source, check it every 3 months and charge it to an acceptable level.

9. Will my Grid Doctor 3300 Solar Generator work with the Grid Doctor 2200XP Expansion Battery?
The Grid Doctor 3300 Solar generator System is 100% compatible with the Grid Doctor 2200XP Expansion Battery Kit. Connect up to seven 3300XP or 2200XP units to a single 3300 system for even more power!

| Having Problems? Try These Troubleshooting Steps:

| How to Factory Reset Your Grid Doctor 3300 (Do this if your display is not working or the unit won’t turn on)

1. Turn off the generator and unplug all cords
2. Press and hold the Main Power Button for 60 seconds
3. The screen will light up, then go blank—keep holding
4. Release after 60 seconds
5. Wait 5 seconds, then press the Power Button again for 3–5 seconds
6. Listen for a beep—display should turn on. Factory Reset is now complete and you should be able to use your Grid Doctor normally

| Service + Support