Articles tagged basics
Related backup power guides grouped under this topic.
How Our Calculator Picks Your Recommendation
A transparent look at the exact steps PowerLasts uses to size your backup power, so you can trust the recommendation or double-check the maths yourself.
LiFePO4 vs Lithium-Ion vs Lead-Acid: Battery Types Explained
The three main battery types in backup power, compared on lifespan, safety, weight, cost, and real-world performance.
Your Power Strip Is Probably Not a Surge Protector
Most people think their power strip protects their electronics. It probably doesn't. Here's the difference and why it matters.
Watts vs Volt-Amps: The UPS Spec That Tricks Everyone
UPS units are rated in VA, but your devices use watts. They're not the same number, and the difference can leave you short on power.
What Are Watt-Hours? A Simple Explanation
Understand watt-hours, how they differ from watts, and why they matter when sizing a UPS or portable power station.
What Is Startup Surge? Why Your Power Station Needs Extra Watts
Some devices need a burst of extra power to start up. Here's what startup surge means, which devices have it, and why it matters for backup power sizing.
You Only Get Half the Battery (Here's Why)
That 1000Wh battery doesn't actually give you 1000Wh. Depth of discharge, inverter losses, and battery chemistry quietly steal your runtime.