SolarWiz: Battery & Inverter turns battery bank sizing, inverter loads and solar charging into quick, honest numbers. No signal needed, no account, no guesswork.
Explore the toolkitWho it is forHours of autonomy from appliance watts, capacity and Depth of Discharge, tuned to LiFePO4, AGM, Gel and lead-acid curves.
Drop in a fridge, router, boiler pump, TV or laptop and watch the combined continuous load add up.
Compare startup surge against peak and continuous ratings, with 85 to 95 percent conversion losses baked in.
Plan 12V, 24V and 48V banks and sanity-check the wiring layout before you buy a single cell.
Estimate refill time from a wall charger's amperage or from panel wattage and peak sun hours.
Find the DC cable thickness in mm² or AWG that keeps voltage drop low and wires cool.
Visual breakdowns of peak loads, reserves and daily kWh demand in one glance.
Archive each backup configuration on your device, ready whenever the grid goes quiet.
Basement, garage, mountain pass: every calculation works with zero cellular signal.
🔋 We are a small crew of energy tinkerers who got tired of battery math scribbled on napkins. SolarWiz was born to make backup power planning feel clear instead of stressful.
☀️ Our mission is simple: put professional-grade sizing tools into the hands of homeowners, RV travelers, campers, electricians and installers, wherever they happen to be.
⚡ Inside the app you get runtime hours, inverter load checks, bank wiring layouts, charge-time estimates, cable sizing and a private vault for every setup you save, all working offline.
🏠 It matters because the right numbers mean the fridge stays cold, the cabin stays warm and no cable runs dangerously hot, with your data never leaving your phone.
Plan it. Store it. Stay powered.
SolarWiz: Battery & Inverter does not collect, store or share any data. Every calculation and every saved configuration lives locally on your device.
None. We do not gather personal details, device identifiers, location, usage statistics or the battery and appliance values you enter.
Since nothing is collected, nothing is used, analyzed, profiled or sold. Your inputs are processed on the spot to produce your results.
Saved vault entries stay in the app's local storage on your phone. There is no cloud, no remote server and no sync service.
The app includes no analytics, advertising networks or tracking tools, and it hands nothing to outside companies.
Because the app runs fully offline and transmits nothing, your energy plans are protected by your device's own security and never travel across a network.
We collect no data from anyone, including children under 13, so the app is consistent with COPPA principles.
No accounts or sign-ups exist. To erase everything, simply delete your vault entries or uninstall the app and all local data goes with it.
If this policy ever changes, the updated version will appear here with a new effective date. Our no-collection approach is not planned to change.
Questions? Write to privacy@solarwizbatteryinverterapp.com.
👋 Got a question, a wiring puzzle or a bright idea? We would love to hear from you, so drop us a line anytime.
⏱️ We typically reply within 24 to 48 hours.