Battery Backup Time: Why That “9 Hours” Meme Is Wrong (and How to Calculate It Right)
Battery Backup Time: Why That “9 Hours” Meme Is Wrong (and How to Calculate It Right) 🔋 Published: September 3, 2025 A viral graphic says a 12V, 225Ah battery can run a 300W load for 9 hours. Sounds awesome—until you factor in real-world stuff like inverter losses, depth of discharge, and Peukert effect. Here’s the … Read more