Was looking for a power bank to top up phone when travelling and found this one. Seems good from reviews and looks to be a reliable brand.
CamelCamelCamel.
DEfinitely recommend
Thanks, I just visited their Amazon store and bought the larger 40000mAh version, $53.29 after applying the 5% voucher. It has some bad reviews but I've been very happy with the 20000mAh (as per this deal) and 30000mAh ones I've owned for a couple of years, but I wanted something larger with pass-thru charging.
Not sure if it is a issue with E-Cig /Vape or the battery pack, but I have the same battery pack as in the picture, and it doesn't register the battery level decreasing even as it charges my Vape from 0 to 100%
On the first time I used the battery, charged it full and from their, the last 30% went in a matter of minutes but it's been fairly regular since then.
Rated 4.1 / 5 in the Amazon reviews. That’s pretty bad. Your experience is very common. I’ve yet to have a ROMOSS which hasn’t bludged after a month of use.
Sorry if I wasn't very clear, the first time I used the battery from 100 down to 0, the last 30% went down within minutes, but from 100% to 0% has been a fairly smooth regular progression since then. And my vape not getting charged with 100% decreasing is just as likely to be an issue with my vape than the battery pack for all I know.
Long as the rated capacity is there battery level reporting doesn't seem like that big of a deal
well, it's not ideal to have you battery pack say it's 100% when it might actually be 50% or less? Since there's no one popping up and saying me too, I guess this isn't very common…
That's no their issue, it dips quickly below 30% before they calibrated the BMS
Assuming you charge when you need to and recharge when you can wouldn't really be an issue for me regardless
Had this. No longer charging a month after warranty expired. Maybe I was just unlucky but I wouldn't buy it again. I have smaller capacity power banks that are still going strong after several years. It was good when it worked though.
Kyx can you please share link on Amazon or eBay of what you have now, have iPhone se second gen and iPad I would use it for. Many thanks
Thanks so much Kyx 😊
@FranGC: Hey Frangc, I think I misread your question. The link I gave was the one that broke. If you're asking for what I'm using, they're actually no name brands from overseas. They're slow to chargs but had them for more than 5 years now.
Any tear down video of romos showing what kind of battery inside?
I saw a review once showing the cells. They have 2 flat Li-Po 10,000mAh rated cells in parallel.
Have this. Suddenly stopped fast charging iPhone with usb c port. Anyone else have similar issue?
YES! On all 4 of mine, wtf? It must be an IOS thing as i'm on iphone 12 and and doesnt work but my son's on iphone 13 and it works
Same as me. Using iPhone 12 and can’t fast charge with the usb c port. It won’t exceed 5w. Very odd
nope, mine still works like a charm.
What was the charge level on the phone? Just tried on my iphone and was only going regular speed but phone was @ 70%, iPad seems to be going at higher charge rate though as battery isnt as full.
https://www.zmi.com/blogs/faq/why-is-my-iphone-not-fast-char…
Note the 4th point:
Could also be a software update causing these issues otherwise as Apple has been sneaky in the past.
My iphone 12 won't charge at all (from any battery %) from usbc on any of the 4 packs I have, but my sons iphone 13 is fine, no problem. Same cable.
It MUST be an OS change.
Same cable.
Is the cable MFI rated? Apple may have invalidated the cable.
@Russ: Apple cable. It seems more like they've invalidated compatibility on the 12 but not the 13. I'm going to have to visit the (goddammit!) Apple Store
Just tested mine and the light came on for quickcharge on the powerbank, only 9v - 1A as the charge was about 68% so close to the 80% mark. I'm using an older XS model with original USBC-Lightning cable.
Yup mine just stopped charging from usb c all together.
After some quick research, it may be an issue with the new iOS update. Just gotta sit tight and wait for the next iOS update I guess.
https://www.amazon.com.au/ROMOSS-30000mAh-Portable-Compatibl…
I went this one. An extra 10000mAh and a digital display for $7.50 seems worth it for sure
Thanks! Just picked one up, good find.
Welcome to OzBargain and thanks for honouring me with your first comment
Good find? I’m sure this was posted 2 days ago
Probably, but check the size/weight of that thing. That unit is 670gm, yeah you'll get more charge but I don't want to lug that around while travelling.
I just got the 23800mah Charmast unit instead, slightly more expensive but faster charging, looks better and is way lighter.
Can this be taken on flights?
yes, i think max capacity is 27000mAh for flights without needing approval from airline or something
As I was leaving Bangkok airport last week, I saw signage at the airport that they allowed up to 32000mah as a maximum for carry-on, not sure if it's a global standard.
Yes.
They need to be less than 100Wh without permit or less than 160Wh with a permit.
https://www.qantas.com/au/en/travel-info/baggage/dangerous-g…
My Romoss 30+ is 99.16Wh
I am not sure how that works out. From what I read powerbanks are usually 3.7 volt so if true 99.16wh/3.7v*1000=26800mah. I can't imagine the bank would be effective with lower voltage. Does it list V on your 30+ powerbank?
They label on my 30+ is 26800mAh/99.16Wh. I suspect this is to keep it under the 100Wh limit.
My 40+ is labelled as 40000mAh/148Wh as expected. Goodness knows what the actual capacity actually is.
Could be LiFePO4 batteries, nominal voltage of 3.2V, which works out correctly using your formula.
Using their 50w 20000 power bank for a month now… Very good. Even charges xps 15 fine
Just baught this one, so I could charge the bank rapidly. Usbc in/out is a plus.
link please
All my romoss power banks won’t charge my iPhone with usb-c to lightning anymore. At all.
My old xiamoi one still does!
Look at xiamoi
It seems flying Qantas for example, it would be ideal to have 20000mah,
10000mAh/1000 x 3.7V = 37Wh
20000mAh/1000 x 3.7V = 74Wh
As it’s under 100Wh, you can bring it with you on the airplane.
What if we tried 30000mAh Power Bank:
30000mAh/1000 x 3.7V = 111Wh
As it’s over the limit, you would need approval from the airline to bring it on. over would require airlines permission. Given 160wh is maximum ( 2 x 20000mah)
Saw your comment after I posted above reply to marbles and OP. Your maths is what I read, so wondering if powerbanks are effective with lower voltage or Romoss is overstating the capacity?
They also make/sell 27,800mAh power banks for this purpose which gets you right near the 100Wh limit.
How would airlines know if it's over or under 160wh given there's prob a gazillion different types of powerbank?
i suppose all electronic device need to state wattage if it has battery?
I have a lot of power banks that are just plain casings with no sticker or words on the outside. You literally can't tell what the power or wattage is. If I can't tell, I doubt airlines could either.
Does it support Power Delivery?
thanks bought 3
Keep an eye out on their ebay store too,
https://www.ebay.com.au/sch/romossde/m.html?_nkw=&_armrs=1&_…
The Romoss 60,000 mAH behemoth was on sale for (after ebay coupon discount) :
ROMOSS 60000mAh Power Bank 22W Type-C 4USB PD QC3.0 Fast Charge Portable Battery
Total: AU $51.83
and apparently you can put in offers on some of their ebay listings (they have multiple listings which make it a bit of a pain inthe ass):
https://www.ebay.com.au/itm/353939278552
https://www.ebay.com.au/bin/purchaseHistory?item=35393927855…
https://www.ebay.com.au/bin/purchaseHistory?item=35398762234…
If the enforce the no high powered power bank rule at the airport, this one would be the most likely to stand out and be confiscated lol.
haha yeah 60000 mAH just purchased as a novelty it's 1.3kg and 22.5W holds it back
30000 mAh : https://www.ebay.com.au/bin/purchaseHistory?item=35393929044… was at some point selling cheaper than the amazon listing as recently as 23/24 May - note can still 'make offer'
20000 probably aint worth it from ebay atm and headache looking at the way they list their stock
Loved mine until it became a spicy pillow after 3 years of average use. Would probably buy again.
Personally I would suggest smaller. (I own this, and a 10Ah one). The 20Ah never really leaves the house, because its just such a brick.
This is just on the 'too much' side of portable, unless you have a backpack. Even in a handbag or shoulder bag, its a manageable but noticeable addition.
A 10Ah by comparison still gets you more than 1 charge, but can be 'forgotten' in most carrying methods. I even find mine pocketable in looser pants.
Just a preference is all; ymmv.
Avoid. Fails after a few months. You're buying ewaste.
Nope mine is 3 years and still going like a champ
What's the difference between sw20 and sense 6ps+? Does either do pass through charging?
What's the difference between sw20 and sense 6ps+? Does either do pass through charging?
Got the 30,000 instead for $10 more which I think is better value? Hopefully it holds up over the years. Still have my 10,000 Anker from 7 years ago going strong
That's much much heavier per reviews, and risk not being allowed on plane.
OK it just arrived yesterday with prime delivery.
30k version is hella heavy and chunky ( basically could be used as a weapon )
Definitely will catch eyes at the airport with annoying customs staff at some point. :(
Thanks! Grabbed one :)
I've had this bank for a few months now.
Would recommend. Fast charges my galaxy 21 in about an hour around 4-5 times before it needs to be recharged.
Remaining percentage goes from 7 to 0% in around 20 seconds tho lol