expired Posted by MetaPhorse ā¢ Mar 12, 2024
Mar 12, 2024 6:03 AM
Item 1 of 1
expired Posted by MetaPhorse ā¢ Mar 12, 2024
Mar 12, 2024 6:03 AM
Anker 24,000mAh 737 Portable Power Bank / 3-Port Charger
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First thing to keep in mind is that some of these Chinese power bank ratings are grossly exaggerated. They have no shame scamming people. Project Farm in their recent battery bank shoot out found the worst offenders only delivered 28% of their promised capacity.
Second, there's going to be a power loss due to overhead and heat. You're never getting back from the battery exactly how much you put in. People claim about 15-20% loss in energy stored.
Finally, mah rating alone doesn't really tell us how much energy there really is. The best way I can explain is using water as an example. If I take two pipes and fill them both with water. One pipe is twice longer than the other pipe, does it mean that I can fill the short pipe two times with water from the longer pipe? Of course not. Shorter pipe could be 3 times as wide as longer pipe. We not only need to know the length, we need to know the width or diameter of the pipe. Once full dimensions of container are known, we can calculate how many gallons or litters it holds and can compare the two and truly see which one is bigger and by how much. So in this case mah rating is like length of pipe and voltage rating is like width/diameter. We multiply voltage by amps and we get watt-hours or Gallons in my example. A quantifiable amount of energy stored in any battery that lets us compare them irregardless of their voltages.
Another way to think about it is gas cans. If I tell you I have a 5 gallon gas can you have a concrete idea of how much gas it holds. But if I tell you I have a 12" gas can you really have no idea, it could be 3 gallons, it could be 10 gallons. Mah and voltage rating is just dimensions of the battery (container), Watt-hour rating is the actual capacity.
Lithium-ion cells run at 3.6-3.8 volts. Anker rates their power bank at 24000mah at 3.6 volts. 24000 mah is 24 amps. 3.6v x 24amp = 86.4 Wh. According to Project Farm testing, Anker 737 delivered 69Wh or 79% of its claimed capacity. So it's more like a 19000mah. It's not horrible IMO compared to some other brands, it wasn't the most honest power bank on the list, but I think it's still pretty good. The best one on the list did 89% of claimed capacity. Anker may also have the most overhead consumption with that screen.
Steam battery is rated at 5200mah at 7.7v. "Pipe diameter" of steam deck battery is twice as wide as on Anker 737 and will require about 10400mah at 3.6 volts to fill it. Deck's battery is really just two 3.6v 5200mah cells linked together on the inside. 7.7v x 5.2amp = 40Wh capacity. That's almost half of Anker 737 rated capacity. Project Farms claims it has 69Wh capacity so I suspect you will not get another full charge even though your Anker showed 50% left, probably a 3/4 charge left.
Take anker 737, chop it in half with an axe, that's literally how much battery is stuffed into LCD SD. OLED SD is even better at 50Wh.
PF Video: https://youtu.be/G1sjqaRll2s
Ok, I'll see myself out
EDIT: Forgot to say, all these companies should really advertise Wh instead of mah on their power banks, but you know, 86 is just not as big or cool of a number as 24000!!!.
I've bought two of them about 6 months apart. First was $50 and included a 100W GaN charger and the second one I just purchased last week was a little over $28. Incredible deal for a 25000mAh 130W Output power bank. Just have to watch the product as the price fluctuates often to catch a deal.
In any case, it's worked great every time I use it. I don't have any devices that take 130W over USB-C but have confirmed it at least does 100W. It's only 1" thick and is 5 ounces lighter than this Anker. Not as much tech info on the display though, although I just need to know the watt draw and power remaining.
Anker, of course, is a trusted name. Worth the extra $$$ ?? Probably to most. But I like saving money too.
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First thing to keep in mind is that some of these Chinese power bank ratings are grossly exaggerated. They have no shame scamming people. Project Farm in their recent battery bank shoot out found the worst offenders only delivered 28% of their promised capacity.
Second, there's going to be a power loss due to overhead and heat. You're never getting back from the battery exactly how much you put in. People claim about 15-20% loss in energy stored.
Finally, mah rating alone doesn't really tell us how much energy there really is. The best way I can explain is using water as an example. If I take two pipes and fill them both with water. One pipe is twice longer than the other pipe, does it mean that I can fill the short pipe two times with water from the longer pipe? Of course not. Shorter pipe could be 3 times as wide as longer pipe. We not only need to know the length, we need to know the width or diameter of the pipe. Once full dimensions of container are known, we can calculate how many gallons or litters it holds and can compare the two and truly see which one is bigger and by how much. So in this case mah rating is like length of pipe and voltage rating is like width/diameter. We multiply voltage by amps and we get watt-hours or Gallons in my example. A quantifiable amount of energy stored in any battery that lets us compare them irregardless of their voltages.
Another way to think about it is gas cans. If I tell you I have a 5 gallon gas can you have a concrete idea of how much gas it holds. But if I tell you I have a 12" gas can you really have no idea, it could be 3 gallons, it could be 10 gallons. Mah and voltage rating is just dimensions of the battery (container), Watt-hour rating is the actual capacity.
Lithium-ion cells run at 3.6-3.8 volts. Anker rates their power bank at 24000mah at 3.6 volts. 24000 mah is 24 amps. 3.6v x 24amp = 86.4 Wh. According to Project Farm testing, Anker 737 delivered 69Wh or 79% of its claimed capacity. So it's more like a 19000mah. It's not horrible IMO compared to some other brands, it wasn't the most honest power bank on the list, but I think it's still pretty good. The best one on the list did 89% of claimed capacity. Anker may also have the most overhead consumption with that screen.
Steam battery is rated at 5200mah at 7.7v. "Pipe diameter" of steam deck battery is twice as wide as on Anker 737 and will require about 10400mah at 3.6 volts to fill it. Deck's battery is really just two 3.6v 5200mah cells linked together on the inside. 7.7v x 5.2amp = 40Wh capacity. That's almost half of Anker 737 rated capacity. Project Farms claims it has 69Wh capacity so I suspect you will not get another full charge even though your Anker showed 50% left, probably a 3/4 charge left.
Take anker 737, chop it in half with an axe, that's literally how much battery is stuffed into LCD SD. OLED SD is even better at 50Wh.
PF Video: https://youtu.be/G1sjqaRll2s
Ok, I'll see myself out
EDIT: Forgot to say, all these companies should really advertise Wh instead of mah on their power banks, but you know, 86 is just not as big or cool of a number as 24000!!!.
Looking at some of the Anker reviews, I see:
"Defective Battery"...
"Issues occurred in 3 months usage."...
"This Unit DESTROYED My Laptop"...
"Breaks within a year and no support from Anker"...
"Works Until It Doesn't"...
...and more.
Every product has it's failures. Maybe one day my MoveSpeed will stop working. Maybe I'll get a replacement, newer model or a refund. If I don't, I'm out $28. Like I said in my original post, Anker is a brand name more people trust and you pay for that. Doesn't mean you won't get a lemon.
Also, I use my power banks very infrequently (sort of as an emergency charger when I'm not around an AC plug) so hopefully they will last longer. I suppose others use them as a convenience and often.
First thing to keep in mind is that some of these Chinese power bank ratings are grossly exaggerated. They have no shame scamming people. Project Farm in their recent battery bank shoot out found the worst offenders only delivered 28% of their promised capacity.
Second, there's going to be a power loss due to overhead and heat. You're never getting back from the battery exactly how much you put in. People claim about 15-20% loss in energy stored.
Finally, mah rating alone doesn't really tell us how much energy there really is. The best way I can explain is using water as an example. If I take two pipes and fill them both with water. One pipe is twice longer than the other pipe, does it mean that I can fill the short pipe two times with water from the longer pipe? Of course not. Shorter pipe could be 3 times as wide as longer pipe. We not only need to know the length, we need to know the width or diameter of the pipe. Once full dimensions of container are known, we can calculate how many gallons or litters it holds and can compare the two and truly see which one is bigger and by how much. So in this case mah rating is like length of pipe and voltage rating is like width/diameter. We multiply voltage by amps and we get watt-hours or Gallons in my example. A quantifiable amount of energy stored in any battery that lets us compare them irregardless of their voltages.
Another way to think about it is gas cans. If I tell you I have a 5 gallon gas can you have a concrete idea of how much gas it holds. But if I tell you I have a 12" gas can you really have no idea, it could be 3 gallons, it could be 10 gallons. Mah and voltage rating is just dimensions of the battery (container), Watt-hour rating is the actual capacity.
Lithium-ion cells run at 3.6-3.8 volts. Anker rates their power bank at 24000mah at 3.6 volts. 24000 mah is 24 amps. 3.6v x 24amp = 86.4 Wh. According to Project Farm testing, Anker 737 delivered 69Wh or 79% of its claimed capacity. So it's more like a 19000mah. It's not horrible IMO compared to some other brands, it wasn't the most honest power bank on the list, but I think it's still pretty good. The best one on the list did 89% of claimed capacity. Anker may also have the most overhead consumption with that screen.
Steam battery is rated at 5200mah at 7.7v. "Pipe diameter" of steam deck battery is twice as wide as on Anker 737 and will require about 10400mah at 3.6 volts to fill it. Deck's battery is really just two 3.6v 5200mah cells linked together on the inside. 7.7v x 5.2amp = 40Wh capacity. That's almost half of Anker 737 rated capacity. Project Farms claims it has 69Wh capacity so I suspect you will not get another full charge even though your Anker showed 50% left, probably a 3/4 charge left.
Take anker 737, chop it in half with an axe, that's literally how much battery is stuffed into LCD SD. OLED SD is even better at 50Wh.
PF Video: https://youtu.be/G1sjqaRll2s
Ok, I'll see myself out
EDIT: Forgot to say, all these companies should really advertise Wh instead of mah on their power banks, but you know, 86 is just not as big or cool of a number as 24000!!!.
I didn't realize that the Steam Deck battery is 5200 mAh at 7.7V.
The phone battery's 3300 mAh is most likely at 3.7V
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I also don't lend any credence to the reviews saying it blew up their iPhone or laptop. I just don't really think that's possible and I believe those reviews to be either disingenuous or simply misattributing a product failure to the battery pack.
Maybe someone with more education in electrical could chime in but in order to "fry" a device like a laptop wouldn't the pack need to provide a huge burst or surge of power that it simply isn't capable or delivering?
Anyway it hasn't burned down my house... Yet
I contacted the seller 2 days ago and today; I received the replacement. That is the quickest warranty replacement I had so far. I honestly didn't want to contact them about the broken battery because I thought they are worthless and won't go with the warranty. I am wrong. They seem really good. Replied to my msg instantly and sent me a replacement.
I think you can have peace of mind buying the Movespeed battery. It actually works so good if not broken. The specs are top notch and not to mention, it has the LCD that shows stats.
"This item can be returned in its original condition for a full refund or replacement within 30 days of receipt."
mine delivers tomorrow. i was pretty impressed that they include the 100W cable as well, assuming it's legit.
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