For others trying to find how many charges you actually get from power banks, because it turned out to be not that easy to find, especially with all these variables (see below) and a lot of misleading comments/posts/review from people who are mistaken. Sharing is caring, so please add your devices in comments.
Some thoughts for other lurkers:
- Amper-hours depend on voltage, so 20000mAh (why not 20Ah, god damn marketing and our monkey brains) might differ from power bank to another.
- Watt-hours (Wh) might also be a lie, according to some reviewer even known brands might sin.
- On top you have conversion loss 80-90% roughly speaking.
I bought INIU 20000mah 65w mini P62-E1 for ~50$. It says it is 73Wh. I got exactly one charge 0-100% for my Steam Deck OLED (50Wh) while it being off.
It was as fast as wall charger and thing is small and weights 320g, which is perfect for me. Also design/surface is above what I expected. Included cable is crap and does not support 65w charging, don't ask me why. Steam deck will on repeat go full charging and then stop with that cable. I can recommend it I guess, but for sure there is something better, depends on discounts, too.
Yes! On Reddit I tried to explain several times that the Deck’s battery was 5200mah but not at 3.7 volts, and as such a badass 25000mah Anker would NOT charge it “at least 4 times” but probably 2.
It’s not a big deal tbh, but this is a thing people use on long flights, spreading misunderstandings can get people stuck mid flight without entertainment.
Brands: right now I would look at iniu first, Baseus and then maybe Ugreen but last time it wasn’t an epic offering. Anker IS a good brand, but after the fiasco with their eufy camera security, I avoid all their products. In fairness however if you’re not going to boycott them, a power bank or charge cable is not going to be a security risk….
So you wouldn't recommend this on a long flight? Is there something that could extend the battery?
It honestly depends on a few factors. Mostly… what games are you planning to play? There’s stuff that can last for 5-8 hours with the Deck battery alone. Here’s a good bit of information: mentions both a maximum of 100wh on power banks and how to calculate wh from volts and ah (V * Ah). So assuming the usual 3.6v power bank the maximum you can carry is a 27000mAh one.
The usual warnings apply: check in advance with your airline, rules and regulations vary around the world and so on.