What is Battery type: flat plate vs tubular vs lithium?
Construction of the battery.
Short answer
Tubular needs distilled water topping every 3–4 months.
Battery type: flat plate vs tubular vs lithium when buying a home inverter & battery
Construction of the battery.
Why it matters: Tubular lasts 4–5 years with deep cycles; flat plate is cheaper but dies faster; lithium is maintenance-free and compact but costly.
Look for: Tubular needs distilled water topping every 3–4 months.
Full Home Inverter & Battery buying guide