Battery and UPS Calculators

Battery and UPS calculators for homes: backup time, battery bank size and runtime for 12V, 24V and 48V systems, with tubular and lithium battery options.

• Battery Backup Time Calculator for Home

  How long will your home UPS battery last? Enter load, battery Ah and type (tubular or lithium) to get backup time with inverter losses included.

• 12V Battery Runtime Calculator

  Find how long a 12V battery runs your load. Works for 100Ah, 150Ah and 200Ah, lead-acid or lithium, with DC and inverter loads.

• 200Ah Battery Backup Time Calculator

  See how many hours a 200Ah battery runs fans, lights, a fridge or a PC. Tubular and lithium, 12V or 24V, with a ready backup time table.

• UPS Backup Time Calculator

  Estimate UPS runtime for a PC, router or CCTV from VA rating, battery Ah and load. Includes power factor and real inverter efficiency.