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Pak Power Guide

Calculators

Put your own numbers in and get an honest answer: real backup time rather than the sticker figure, an inverter that survives start-up surges, and cables that stay cool. Everything runs in your browser, in watts, volts and whatever currency you use.

CalculatorInverter Battery Backup Time CalculatorReal hours of backup from your batteries at your load, not the sticker maths.CalculatorInverter, Battery & Power Station Size CalculatorFrom the appliances you need to the inverter, surge rating and battery to buy.CalculatorSolar Panel Tilt Angle CalculatorThe best angle and direction for your panels, anywhere in the world.CalculatorBattery to Inverter Cable & Fuse Size CalculatorCable thickness and DC fuse between battery and inverter, in mm² and AWG.CalculatorSolar Payback CalculatorYears until solar pays for itself, in your currency and at your tariff.CalculatorGenerator vs Battery Backup Running Cost CalculatorMonthly cost of a generator against a UPS or power station for your outages.