this post was submitted on 02 Apr 2025
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I don't understand why everything isn't just rated in Wh or mWh. It gives them a bigger number to advertise and it's voltage-independent. Sure there are load-dependent conversion efficiencies that complicate things a bit, but nobody is going to get up in arms about a 5% deviation from the advertised spec due to less than ideal conversion efficiency. Compared to trying to figure out how many recharge cycles I'll get on my 5000mAh laptop battery from my 20000mAh power bank (what voltage is that laptop battery running at again?) a 5% efficiency drop is a big nothing burger.