Grid Doctor 3300XP Expansion Battery

AMPLIFY YOUR POWER. EXPAND YOUR REACH AND RUN TIME. In the midst of a blackout when all your crucial electronic gear goes down, what's your game plan? A standard backup battery might give you some juice, but it won’t last forever. Critical gear like heating units, medical devices, and communication tools will be dead in the water once that fallback power is drained. Unless you're ready and equipped. The Grid Doctor 2200XP Expansion Battery is the ultimate choice for prolonged power independence and a must-add to your Grid Doctor 2200 Solar Generator System.  MEET IMPRESSIVE POWER – Each 2200XP DOUBLES the power of your Grid Doctor 2200 Solar Generator System (sold separately). Each XP provides a massive boost that carries you even farther in an emergency. TAILOR YOUR POWER – Assemble an unshakeable power tower when you stack up to seven of these expansion batteries. Connect them to your Grid Doctor 2200 Solar Generator System's battery to enhance your overall runtime to a stagger