Stack Reliable Power
Engineered with durable LiFePO4 cells for cleaner, safer performance. Stack multiple Grid Doctor 3300XP units to build the long term energy reserve your home needs
3300XP Expansion Battery Kits for the 3300 and 2200 Solar Generation Systems by Grid Doctor
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3300XP Expansion Battery Kits for the 3300 and 2200 Solar Generation Systems by Grid Doctor
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Power shortages and long outages are becoming a normal part of life. Our 3300XP Expansion Battery gives you the long lasting, stackable power your home needs to stay operational through any disruption.
What You Get
- (1) Grid Doctor 3300XP Expansion Battery
- Smart Expansion Battery Cable
- XT60 Car Charging Cable
- XT60 to MC4 Solar Charging Cable
- User guide and safety instructions
Specifications:
- 2048Wh LiFePO4 battery
- 3500 cycle lifespan
- AC XT60 input
- Solar XT60 input
- Car XT60 input
- Max solar input 200W, 10A
- XT90 48V output
- USB A output
- USB C PD output
- 12V car socket output
- Weight 41 lb
- Dimensions 18.7 x 11.65 x 9.51 inches
- UN38.3 certified
- Stackable up to 7 units
- Charging temps 32 F to 104 F
EXPAND YOUR POWER SUPPLY: Add 2048Wh of dependable LiFePO4 storage every time you stack a new unit
BUILT WITH SAFER BATTERY TECHNOLOGY: LiFePO4 chemistry stays cool and stable for safer indoor use during long outages
RUN DEVICES WHILE CHARGING: Pass through charging keeps essential appliances powered without interruption
A LONG TERM POWER SOLUTION: Over 3500 cycles for years of reliable performance
MODULAR FREEDOM: Charge a full stack together, then move individual units to different rooms to power lights, fridges, heaters, communication devices, and more.
How to Use:
- Stack the 3300XP directly on top of your Grid Doctor 3300 generator
- Connect the units using the Smart Expansion Battery Cable
- Charge the 3300XP through a wall outlet, solar panels, or a vehicle using the XT60 connections
- Stack up to 7 to create a 16,384Wh power tower for extended outages or multi room power distribution
Competing expansion batteries rely on older lithium ion chemistry that degrades quickly and struggles in extreme temperatures. The 3300XP uses LiFePO4 technology for longer life, more stability, and safer indoor use. It delivers more cycles, faster charging, and stronger performance when your home needs it most.
Energy reliability has become impossible to predict. Power grids strain under rising demand. Repairs take longer. Weather events hit harder. Supplies run thinner. Families who prepare early stay ahead of the chaos and avoid being caught off guard.
The 3300XP gives your home the extended energy reserve needed for long outages. Refrigerators stay cold. Communications stay online. Medical equipment stays powered. Security tools stay active. It is not fear. It is responsibility.
Preparedness is not about waiting for something to go wrong. It is about making sure your home keeps running when it does.
- Charge immediately upon arrival.
- Use within recommended temperature ranges.
- Store long term at 60 percent charge and check every three months.
- Do not use a GFCI outlet to charge the unit.
- Follow all safety instructions in the user guide.
- Keep away from children.
- Do not drop, open, burn, or expose to extreme heat or water.
- Use only cables and accessories approved by Grid Doctor.