The battery is usually the single most expensive component in a solar system, and it’s also the one buyers understand least well when comparing quotes. Two batteries with the same rated capacity can differ enormously in real-world performance, lifespan, and total cost once you account for how long each actually lasts — this is exactly the comparison that matters, not just the upfront price tag. The Two Main Battery Types We Supply LiFePO4 (Lithium Iron Phosphate) batteries — from brands including Lithium Valley, Felicity and WECO — represent the current standard in solar battery technology, built with a battery management […]