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Prime Members: 60,000mAh ROMOSS 22.5W PD Fast Charging Portable Power Bank Expired

$35
$89.99
+ Free Shipping
+27 Deal Score
73,033 Views
ROMOSS Direct via Amazon has for Prime Members: 60,000mAh ROMOSS 22.5W PD Fast Charging Portable Power Bank on sale for $34.99 when you clip the 50% Off coupon on the page. Shipping is free.

Thanks to Staff Member DesertGardener for sharing this deal.
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About this Item:
  • Ultra-High 60000mAh Capacity Power Bank delivers multiple charges to smartphones, tablets and other USB-powered devices. Delivering over 12 charges to iPhone 15/14, 10 to S23, and 5 to iPad powering your devices for week on end during trips
  • Fast Charging and Universal Compatibility supporting 18W PD and QC output, compatible with all major fast charging protocols, enabling fast charging for Apple, devices and more. The easy-to-read LED display keeps track of the power status
  • Multiple Charging Options; 4 outputs, 3 inputs Charge multiple devices simultaneously with two 5V/2.4A USB ports, one Type C port, and one USB fast charging port. 3 power bank charging inputs: Micro USB, Lightning, and USB Type C
  • The Romoss PEA60 60000 mAh energy dense portable power station is designed as Indoor and Outdoor, Travel charger. Take it with you on your travels, outdoor adventures, or simply keep it in as backup charger for emergencies
  • Intelligent Safety Protection; The built-in multi safety system offers complete protection against over-heat, over-charge, over-current, over-discharge, and short-circuits
Good Deal?

Original Post

Written by
Edited April 12, 2024 at 12:36 AM by
Romoss Direct via Amazon [amazon.com] has for Prime Members: ROMOSS 60000mAh Portable Power Bank w/ 22.5W Fast Charging on sale for $34.99. Shipping is free.

About this product:
  • 4 Outputs: 1 x USB A 22.5W fast charging port, 2 x 5V/2.4A USB ports, 1 x Type C port,
  • 3 Inputs: Micro USB, Lightning, Type-C ports.
  • 60000mAh Ultra-High Capacity
  • Digital Display: Read the battery status at a glance.
  • 12-month warranty
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Deal
Score
+27
73,033 Views
$35
$89.99
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Featured Comments

Here is the physical size compared to a verified TalentCell Battery [amazon.com] that has 156wh/42,980mah. Certainly appears to be able to hold 222wh/60,000mah. The weight is also comparatively heavier as well.

I can also now confirm that my 45watt USB-C wall charger will only charge this to 86%, but my Macbook Charger that is 87watts is good enough to get it to 100%.

I have no clue how many people seriously claim to be experts here and just present opinion as fact over and over.
From reading the description, they're using Lithium Polymer cells in this instead of Lithium Ion.

Personally, I've tried to avoid LiPoly for going on close to 20 years.

They have way too many downsides compared to Lithium Ion, starting with the fact that they are even less shelf stable.

It also doesn't sit well with me that they're incorrectly telling people to "calibrate" the battery by fully depleting it.

Remember, people: Lithium based batteries do not have a memory effect and thus can't be calibrated through power cycles.

All you're doing by depleting it fully is stressing the battery, which actually causes it to not hold a charge as well.
Everything you said is accurate AND this isn't a single cell battery, it's a multi-cell battery pack that needs a Battery Management System (BMS). It's also a butt load of energy so it will have charge/discharge protection. In other words 0% isn't truly 0%, and it won't burst into flames if you leave it on the charger at 100%. The BMS monitors individual cells in the pack to achieve this protection.

It's common for batteries in a pack to have different states of charge (e.g. 4.05v, 4.12v etc). In those situations it's common to rebalance individual cells to bring the voltages in sync either by top balancing or bottom balancing cells.

A lot of Battery Management Systems have an automatic rebalancing algorithm that will do a bottom balance when you discharge the pack below 10%. Because this pack has discharge protection, 0% on it's gauge is likely just the threshold where it cuts off but isn't truly depleted. And discharging to 0% would trigger the bottom rebalancing.

It's also possible this is cheap Chinese crap and will burn your house down. Smilie

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Joined Jun 2019
L2: Beginner
> bubble2 39 Posts
10 Reputation
BeigeMaid395
04-16-2024 at 11:45 AM.
04-16-2024 at 11:45 AM.
Quote from TaKo97 :
I would say I'm making a value judgement. Yes I know that the two categories are vastly different, but I am questioning the existence of one category entirely, I do not consider them to be equally valid categories. I get that many people are price sensitive but in that case, often buying nothing is a better value than buying something bad. And for most people I expect this power bank to be simply bad and a worse experience than buying something with a smaller capacity or nothing at all.
For what it is it works great...its to charge smaller items like a phones and such .. we use it for that and to charge rechargeable items like lights and bug repellent units while camping...it can be easily charged with a solar panel. its also power passive so it can be recharged while using it. compared to most other battery packs yes its heavier but it also is much larger of a battery. its a great battery for what it can be used for...its not going to charge laptops fast or anything that needs more than 22 watts to charge...IMO it fits the needs.
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Joined Oct 2014
L5: Journeyman
> bubble2 594 Posts
26 Reputation
feldman011teen
04-18-2024 at 12:23 PM.
04-18-2024 at 12:23 PM.
I snagged this and it showed up. With a fast charger plugged directly into the wall, it will not charge past 86%. Tried charging a vape but i don't believe its working. Does fast charge a phone but it'll drop 10% for this charge. Not sure about long term viability. I would not have paid $80 for this. It has only ONE usb-c port that is both used to charge the battery and charge a device. Hopefully there's no confusion on the device. There are two smaller connectors (assuming PAL) and three USB-A.
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Joined Jan 2017
L3: Novice
> bubble2 193 Posts
46 Reputation
hz.lv
04-20-2024 at 02:35 PM.
04-20-2024 at 02:35 PM.
Quote from feldman011teen :
I snagged this and it showed up. With a fast charger plugged directly into the wall, it will not charge past 86%. Tried charging a vape but i don't believe its working. Does fast charge a phone but it'll drop 10% for this charge. Not sure about long term viability. I would not have paid $80 for this. It has only ONE usb-c port that is both used to charge the battery and charge a device. Hopefully there's no confusion on the device. There are two smaller connectors (assuming PAL) and three USB-A.
Get a high power usb-c charger, it'll go to 100%. Regular wall charger won't be able to do that.
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Joined Oct 2022
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> bubble2 13 Posts
10 Reputation
GreyLake471
04-20-2024 at 03:13 PM.
04-20-2024 at 03:13 PM.
Action ended. Now price 45$
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