Watt Hrs vs Amp Hrs
This article helps explain these ratings and raises a question wrt battery charging older vs newer LFPs too. Not sure if this also applies to other battery types or if it matters with any when you me...
Forum Discussion
100 amp hours @ 12 volts -- 24 volts 120 volts.
Amp hours is a shortcut. It is an assumption figure. You know how much energy you require. To say pump 100 gallons of water. Is the pump going to deliver the same gallonage at 13.6 volts as it does at 12.1 volts?
If you feed a 50 watt array of regulated LED lamps at 14.4 volts instead of 12.2 volts will the same amount of energy be extracted out of a storage battery? The lamps operate from 10 to 30 volts.
Watt hours provides a true quantity of energy. Your home meter displays kWh for a reason.
How you can benefit (or not) by utilizing the wattage measure is the question.
Amp hours is a shortcut. It is an assumption figure. You know how much energy you require. To say pump 100 gallons of water. Is the pump going to deliver the same gallonage at 13.6 volts as it does at 12.1 volts?
If you feed a 50 watt array of regulated LED lamps at 14.4 volts instead of 12.2 volts will the same amount of energy be extracted out of a storage battery? The lamps operate from 10 to 30 volts.
Watt hours provides a true quantity of energy. Your home meter displays kWh for a reason.
How you can benefit (or not) by utilizing the wattage measure is the question.
