INIU Innovations Inc. via Amazon has
INIU 10000mAh 45W PD USB-C Power Bank Portable Charger w/ USB-C Lanyard (Black) on sale for $18.69 - 40% discount at checkout =
$11.21.
Shipping is free w/ Prime or on $35+ orders.
Note: Must go to final checkout for the sale price.
Thanks to Deal Hunter
phoinix for finding this deal.
Features:- 10,000mAh power bank features high-density cell, making it 30% smaller and 15% lighter than others with the same capacity
- 2 USB-C ports and 1 USB-A port
- Supports up to 45W PD charging
- Includes 0.4' USB-C lanyard cable
- Dimensions: 4.3 x 2.7 x 0.7" (6.4-Oz)
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22 Comments
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Battery capacity 10000mAh/37W/3.7V
Output Capacity 6200mAh/5V/31Wh (Typicaly energy loss accounted)
Which I have NEVER seen any other power bank manufacturer list or admit to
This brand is doing some surprising things, at very appealing price points (especially on sale), and I really like this charger. I bought two. The only ding against them -- and only relevant to me because I travel in and around China sometimes -- is that they don't have 3C certification.
Battery capacity 10000mAh/37W/3.7V
Output Capacity 6200mAh/5V/31Wh (Typicaly energy loss accounted)
Which I have NEVER seen any other power bank manufacturer list or admit to
This brand is doing some surprising things, at very appealing price points (especially on sale), and I really like this charger. I bought two. The only ding against them -- and only relevant to me because I travel in and around China sometimes -- is that they don't have 3C certification.
Either way I am really liking the products. Sounds weird to say about a battery pack but they feel high quality in the hand, nice materials, good fit and finish, rounded corners, etc... and seem to be packaged efficiently, small sizes for the usable capacities.
62% seems pretty low, I consider around 80% usable (so enough to recharge another 8000mAh battery) to be normal. Maybe they are doing some combined math there to get to how much another battery can be recharged considering losses on both sides and a buffer on top of that.
Either way I am really liking the products. Sounds weird to say about a battery pack but they feel high quality in the hand, nice materials, good fit and finish, rounded corners, etc... and seem to be packaged efficiently, small sizes for the usable capacities.
And gemini tells me a 'good' power bank's efficiency is somewhere between 80 and 90% efficient in the conversion, losing 10-20% in heat, so you'll expect somewhere between 5920mAh and 6660mAh output at 5V.
So they're assuming this one is smack dab in the middle of the efficiency range at around 85%, which I think is pretty reasonable.
Edit: I guess for me, the more important things are that their chargers are by far the smallest/slimmest I can find for the power output and capacity (10000mAh at 45W is pretty rare, and I certainly can't find one specced like this that's this small), AND their prices are low enough that I wonder how they're making a profit.
I looked up the company behind them, as I was trying to purchase one of these chargers with 3C cert and couldn't find one. They are based in Guangzhou I believe, and only target foreign markets. You'll find their power banks on Chinese reseller sites for 3x-4x what they're going for here, which is... weird.
The only downside I don't like is how bright the indicator light is if using in dark room while in bed. You can simply flip it over so no harm there but that's the only con I can think of. For the weight and the price this is for sure the best bang. Sure you can save 30 grams but loosing 50% batter. Not worth imo and Costs much more
Regarding new generation batteries, are you referring to sodium ion ones?
I don't know much about electrical engineering or energy conversion so take this with a grain of salt, but with 100% efficiency, converting from the battery's 37Wh at 3.7V (10000mAh) to 5V output is: 37Wh / 5V = 7400mAh just from the step-up, so 74%.
And gemini tells me a 'good' power bank's efficiency is somewhere between 80 and 90% efficient in the conversion, losing 10-20% in heat, so you'll expect somewhere between 5920mAh and 6660mAh output at 5V.
So they're assuming this one is smack dab in the middle of the efficiency range at around 85%, which I think is pretty reasonable.
Edit: I guess for me, the more important things are that their chargers are by far the smallest/slimmest I can find for the power output and capacity (10000mAh at 45W is pretty rare, and I certainly can't find one specced like this that's this small), AND their prices are low enough that I wonder how they're making a profit.
I looked up the company behind them, as I was trying to purchase one of these chargers with 3C cert and couldn't find one. They are based in Guangzhou I believe, and only target foreign markets. You'll find their power banks on Chinese reseller sites for 3x-4x what they're going for here, which is... weird.
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Either way I am really liking the products. Sounds weird to say about a battery pack but they feel high quality in the hand, nice materials, good fit and finish, rounded corners, etc... and seem to be packaged efficiently, small sizes for the usable capacities.
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