Physical description of array: • 45 275-watt solar PV panels (roof- or ground-mounted, approximate area shown below) • System capacity 12. 375 KW by: John. The Apex 300 has two MPPTs, and each can be connected in series with the quantity of solar panels shown in the attached diagram. The Apex's internal battery also lasts up to four times longer than any comparable product on the market. 8Wh power station with two highly efficient 200W solar panels. Its primary purpose. Given your daily energy use, system voltage, desired autonomy, depth of discharge (DoD) and round‑trip efficiency. Rule of thumb DoD: LiFePO₄ ≈ 80–90%, AGM ≈ 50%. Array Watts ≈ Daily kWh ÷ (Sun Hours × System Derate). Start with a cost-effective single unit for essential backup, and seamlessly scale up with smart accessories to power your RV, off-grid life, or keep your home.
[PDF Version]