Understanding batteries: Watt-hours Vs Amp-hours, power, energy, etc. | Auto Expert John Cadogan

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You live in an increasingly battrified universe, and that’s not going away any time soon. You could easily be allowing me to inflict myself upon you now by virtue of the electrons stored in a tiny little battery. Imagine that. Batteries are everywhere - from phones, tablets and laptops to power tools and even cars. Therefore, if you want to be an informed consumer, you simply have to bend your brain around battery basics. In this report, I’ll show you how. (It’s not that hard.)
If you’re confused about amp-hours and watt-hours, about lithium-ion and lead-acid, power and energy, Joules, versus Watts, versus volts, versus amps … comparing different batteries … dude, you’re not alone. It’s all a blur. This report is the beer-garden physics dissertation on that.
The point about beer-garden physics - it’s designed to empower you. To cut through the super-sciency guff and help you make better, more informed choices by understanding what is really going on in the background, behind all the glossy marketing statements.
This report flows from my recent review of the portable big battery bank and inverter system we know and love as the Bluetti AC200P - a real alternative to a hard-wired dual battery system in a 4X4.
Today’s little tete-a-tete is also inspired by you … if you are a dude named David Read:
"Pretend I'm a dumb [person], how many Amp hours is it? Been researching a bunch of 100 Amp Hour lithium batteries of late and i get how that is calculated. I still can't wrap my head around Watt hours .... I blame all the hits in the head playing footy ;)" - David Read
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