A limited time deal for the X4G variant so get in quick!
In a rush this morning so here's a few links to previous deals for research purposes: 1 2 3
Price might be an all time low?
CamelCamelCamel.
Not bad. Ended to going with this, which is $80.99 with the 10% off. Not as many ports, but slightly smaller firm factor.
INIU 100W Power Bank, 25000mAh
I bought one of these yesterday!
good deal, when i go this large i like to have the steel encased cells so they dont expand or go spicy pillow after years. one photos shows some 18650's but i can see if its confirmed. the one on kogan (homebrand) is 18650s' and still going strong for me
I'd suggest avoiding Imuto.
I have the $85 X6G sitting on my desk currently and it's not actually 99Wh. I'm still running tests but for example it gives about 70Wh in use, and only takes 94Wh to fully charge!
It's likely 22,000mAh (82Wh) or so.
It's not just mine either. Others find the same.
https://www.reddit.com/r/UsbCHardware/comments/18c54of/imuto…
I haven't tested the X4G but I can't imagine it's great. I've also had a previous Imuto X-30 PRO swell up and fail, get replaced, then the replacement swell up and fail and be refunded.
I guess that's the tradeoff you have to make in terms of price vs efficiency/reliability. Not everyone is willing to wait for another discount on the ZMI No.20 😅
I think for the affordable 100W power banks, the INIU B63 linked earlier in the comments is a good deal.
I have not tested that specific 100W version, but I have the 65W version of the same power bank. It meets the advertised spec and seems good value for money. It does use pouch cells, which (if poorly made) tend to have a higher failure rate. But INIU have a 3 year warranty (and reports seem to be they are happy to honour it) so risk is low.
I also have the little INIU 10,500 mAh B6. It gives quite good efficiency, and definitely has a real capacity rating. Mine is almost a year old too, with decent use, and capacity is still about the same. It's often on sale for around $22 and is great value IMO!
Thanks for the tip on INIU's warranty! I bought an INIU B63 (65W & 25,000mAh) from this comment but have been using it rather conservatively after reading SmoothCactus' comment regarding its longevity. I had no idea the battery is covered for the next 3 years!
@anonym: I bought one from that same deal. Mine is holding up fine. It's done multiple rounds of testing at 65W until flat, laptop charging etc. It's early days but no sign of capacity drop.
I would not worry about using it conservatively. Bad quality cells (pouch type or cylindrical) will fail or lose capacity quickly. But INIU appear to have good quality control and use quality cells.
Cactus talks about 21700 power banks, which is what most of the premium power banks use. The main thing is having good quality cells, but the cylindrical cells do tend to handle heat and last longer overall. But it's not usually a factor unless you are draining the power bank at high output every day. Phones for example use quality pouch cells, and get heavy daily use, and only lose capacity slowly.
So IMO just use you INIU power bank as much as you want and claim on the warranty if there's an issue.
Any thoughts on the newer model B64 (https://iniushop.com/pages/iniu-powernova-b64-140w-27-000mah…) that's on sale for $80 USD?
@jc123: Yeah it looks great. I have not had a chance to see if any of the video reviews do in depth testing or not. Or if there are any tear downs, so not sure what cells it uses.
I tried to order one from the US via the INIU website the other week, as it was about $120 AUD. But it would not let me check out.
I see now they have local Australian stock, but it's $161 currently (down from $179). That's probably a decent deal for what it is.
Are you calculating Wh at 5v or at the lipo's 3.5ish volts?
Wh is comparable no matter the voltage. The actual voltages vary as I have tested multiple different discharge and charge voltages. My meter logs voltage and current and also calculates Wh.
For power bank to power bank comparable mAh I use 3.6V. 3.7V is also commonly used.
The X6G internally uses 14.4v, 6800mAh according to the spec on the bank itself. I suspect a 4S2P 18650 setup. But it might be pouch cells.
On the power bank it also lists 27,200mAh at 3.6V (which is 97.9Wh) but then lists 99.16Wh. The online spec also has some variance.
Too bad it doesn't have mains input. Would love to find a power bank / supply as travelling with both is a pain.
Power supplies are generally the most likely component of an electrical system to die, especially if used in countries with unreliable power grids.
It would be wise to not buy a combined battery bank and power supply or you loose both together when it fails.
You can get very small and compact GAN USB-C chargers that don’t add anymore to the bulk of a battery bank than adding a power supply to its internals would.
I picked up a Belkin 65w GAN dual USB-C charger the other day which is barely bigger than an Apple iPhone wall charger.
unfortunately i have a gaming laptop. 65w supply won't work on it (i tried). Need a 100w supply.
Fair enough. This seems to be the smallest 100w wall plug I could find:
https://www.auselectronicsdirect.com.au/100w-usb-c-and-usb-a…
Happy with mine. (20,000mAh)
One thing to keep in mind is the larger capacity one may be an issue when taking on planes. There are often Wh limits to what size battery you can take on.
I used the XG6 (higher capacity than this one which Dreamcast posted the link above) for 31 days in Europe to charge my family's devices (phones mainly), and have no issues with it, but haven't tested the Wh like Prong did. 22,000mAh is still not bad for $85 (I got mine for $90) if you don't need more than that amount of charge/ capacity.
100Wh is the limit for most airlines carry-on's, so the XG6 should be fine in most case for planes.
I only got mine Friday, so have only done a few cycles. Mine arrived with zero charge, so the cells might be slightly out of balance, and depending on the BMS and how it does balancing, it may take time, or more cycles.
The pics online suggest it uses 8x 18650 cells. This is possible within the dimensions, and would require 3400 mAh cells, which is also possible.
If though for example 3000 mAh cells were used, it would have a 24,000 mAh rating (86.4Wh).
My 22,000 mAh (vs 24,000 mAh) is plausible if the BMS is turning off the output slightly early based on lowest cell voltage. And/or doing the reverse at full charge.
If it's actually 24,000 mAh, and sustains 100W with a reasonable efficiency, then it may not be bad for the price. I haven't done extended high output testing yet, as I had another power bank on the 150W load tester, so started the Imuto at lower wattages.
Of course it may just be poor quality cells. And your one may not have the same cells as mine! Once I have a clearer idea I will post an update here.
I’ve got this it’s great… but
IT WONT CHARGE with apple usbc bricks!!
Otherwise perfect.
There's also 100W 26800mah Powerbank for $85 if anyone interested.
https://amzn.asia/d/2RTngHZ