About
Portable power math before product hype.
Solar Gear Spot publishes free calculators and source-backed guides for portable power stations, folding solar panels, outage loads, 12V batteries, RV power, and small off-grid setups.
The useful question is rarely just which product has the largest number on the box. It is whether the battery can run the actual load, whether the inverter can start it, whether the panel fits the charging input, and whether the system can recharge before it is needed again.
What goes into a page
Calculator formulas keep the important inputs visible: watts, hours, duty cycle, conversion loss, reserve, surge output, solar-input limits, and weather assumptions. Model presets link back to current manufacturer documentation and include a verification date.
Buying guides start with the decision a reader needs to make, use primary sources for material specifications, and connect the explanation to a calculator where the numbers can be changed. Evidence labels distinguish published specifications and desk research from direct product use.
Read the research, calculation, and verification methodology.
Limits
These are planning tools, not electrical designs, medical-backup assurances, food-safety guarantees, or local code advice. The current product manual and the qualified professional responsible for an installation remain the final checks.