Portable battery-powered fan?

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Pete7874
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Portable battery-powered fan?

Looking for something that runs on rechargeable batteries that I can take camping to provide some airflow in a tent. So far, my primary contender is this one: http://a.co/asRzGtK

I like that it’s not tiny, and that it runs on 18650 cells which I’ve got plenty of.

Anyone have any other recommendations?

Thanks!

Edited by: Pete7874 on 06/02/2018 - 20:26
zak.wilson
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I don’t know enough about that one to comment. I have a small one that takes 1×18650, and its power is pretty impressive.

I would, however suggest getting it without batteries as $12 for a couple unknown-brand 2600 mAh 18650s isn’t a good deal.

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Pete7874
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zak.wilson wrote:
I would, however suggest getting it without batteries as $12 for a couple unknown-brand 2600 mAh 18650s isn’t a good deal.

This one has no way to add batteries at all. All you get is a hard wired USB cable, which means I would have to get an external battery pack for it. I wish there was a version with battery compartment built-in, but no batteries included.
Nooner
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Not sure if you own any cordless power tools.
Most of the pro-sumer brands (Dewalt, Makita, Milliwauki, etc.) will have a fan you can buy as a bare tool. Any of them would be a good choice. Portable and durable.

Pete7874
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Nooner wrote:
Not sure if you own any cordless power tools.
Most of the pro-sumer brands (Dewalt, Makita, Milliwauki, etc.) will have a fan you can buy as a bare tool. Any of them would be a good choice. Portable and durable.

I only have a Bosch cordless drill/driver, but I don’t think they sell a portable fan.
BlueSwordM
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Here is the portable fan I use every hot day and I don’t when to kill the environment by using AC, which is almost every hot day:
https://www.ebay.ca/itm/Portable-Rechargeable-LED-Light-Fan-Air-Cooler-M...

Works really well, has a smaller 6500k 5mm LED on the side, and supports safe CC/CV charging of the 18650 cell.

It is powerful, but it is loud at higher levels than medium. Works great though, and it was cheap.

ChrisGarrett
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Go to Target, Bed Bath And Beyond or ChinaMart and buy the O2 Cool 10” fan which either runs on 12vdc, or 9vdc. They use 8xD (older model) and now 6xD (newer model), which also comes with a 120vac wall wart adapter.

With a homemade barrel adapter, you can run them off of a bigger 12v AGM/SLA battery. I’ve got one of each and they are quite portable with the alkaleaks installed and they offer ~40 hours on the high setting.

They saved my bacon durning IRMA and 84 hours without power.

About $20, so buy a few.

Chris

maukka
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I have the one that you linked and use it every day. Can recommend. The speed difference between the two modes is not very large.

atbglenn
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Nooner wrote:
Not sure if you own any cordless power tools. Most of the pro-sumer brands (Dewalt, Makita, Milliwauki, etc.) will have a fan you can buy as a bare tool. Any of them would be a good choice. Portable and durable.

I looked at the Dewalt, but unfortunately it’s too expensive at $80. Bummer.

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WalkIntoTheLight
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About a month ago, I bought this:

https://www.amazon.ca/gp/product/B017UA3QC6/ref=oh_aui_detailpage_o00_s00

It can run off 4 AA cells, or USB power. I use Eneloops, and it lasts a few hours on them. I really like it, and the quality seems good. It’s powerful. My only complaint is that it is a bit noisy, but I guess all small fans are like that. Okay, my only other complaint is that it only has 1 speed.

Pete7874
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maukka wrote:
I have the one that you linked and use it every day. Can recommend. The speed difference between the two modes is not very large.

Is it noisy? Quiet enough to sleep next to?
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Too loud for sleeping next to in my opinion.

GreenLights
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An identical fan in the OP is on lightning deal right now (Sunday, June 3, 2018) on Amazon US until about 6:30pm EST. COMLIFE USB Desk Fan, 4400mAh Rechargeable Battery Operated Portable Personal Fan. 9 inch $29.74, 7.5 inch $21.24.

Amazon Link

Just discovered this wonderful addiction.

Pete7874
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Thanks!

atbglenn
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Thanks! I ordered the 7.5” model for $21.24 free shipping and no tax.

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Pete, thanks for this post. Now I am shopping.

I bought a couple smaller single 18650 fans from Caseys early last year for camping. They were cheap, worked great until I tried to run it while charging, burnt both of them up.
My wife likes to have a louder fan, I don’t mind the white noise now, took me long time to get use to it, now I have trouble sleeping when its to quite.

I also like a fan during the evenings to help keep bugs away (sometimes helps). Or keeping the smoke away.

I currently use a comfort zone usb power fan, on my dresser next to my bed, just barely enough airflow. It rotates , I cant find a link to it, got it last year, Menards i think

atbglenn
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My COMLIFE 7.5 Inch Battery Operated or USB Powered Desk Fan is being delivered today, one day after I ordered it from Amazon.

The constitution must stand, especially the first and second amendments. One other thing, I support ICE 100% 

Pete7874
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Nice. I ordered the 9” version.

atbglenn wrote:
one day after I ordered it from Amazon.

Ordered: June 3
Delivered: June 5

Wouldn’t that technically be two days?

qandeel
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Please let us know how it performs.

atbglenn wrote:
My COMLIFE 7.5 Inch Battery Operated or USB Powered Desk Fan is being delivered today, one day after I ordered it from Amazon.

!{width:80%}https://i.imgur.com/khxlK7g.jpg!

 عُمَانْ

atbglenn
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qandeel wrote:
Please let us know how it performs.

atbglenn wrote:
My COMLIFE 7.5 Inch Battery Operated or USB Powered Desk Fan is being delivered today, one day after I ordered it from Amazon.

!{width:80%}https://i.imgur.com/khxlK7g.jpg!

I will Smile

The constitution must stand, especially the first and second amendments. One other thing, I support ICE 100% 

atbglenn
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Pete7874 wrote:
Nice. I ordered the 9” version.

atbglenn wrote:
one day after I ordered it from Amazon.

Ordered: June 3
Delivered: June 5

Wouldn’t that technically be two days?

That’s what Amazon Prime guarantees. Mine still hasn’t arrived yet. I’m guessing the Fed-Ex will be delivering it since USPS was already here.

The constitution must stand, especially the first and second amendments. One other thing, I support ICE 100% 

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Make sure that you all test your COMLIFE 18650 cells out. They look like naked junkers, but they’re run in parallel, so you have that going for you!

Chris

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I ordered 9” sunday, it just arrived, put some 13q’s in while the batts it came with are charging. Nice and quiet and high speed puts out a good bit of wind!

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ChrisGarrett wrote:
Make sure that you all test your COMLIFE 18650 cells out. They look like naked junkers, but they’re run in parallel, so you have that going for you!

Chris

Hi Chris, I’m doing a nor test right now. Both cells were around 4 volts. In the meantime, I’m using Samsung Q30’s. My initial opinion of this fan is positive. The low mode is very quiet and is more than enough CFM’s for my needs. Build quality is very good. I think it’s a steal at $21.24.

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atbglenn wrote:
ChrisGarrett wrote:
Make sure that you all test your COMLIFE 18650 cells out. They look like naked junkers, but they’re run in parallel, so you have that going for you!

Chris

Hi Chris, I’m doing a nor test right now. Both cells were around 4 volts. In the meantime, I’m using Samsung Q30’s. My initial opinion of this fan is positive. The low mode is very quiet and is more than enough CFM’s for my needs. Build quality is very good. I think it’s a steal at $21.24.

I’m looking at them now, although as I suggested above, I went the 02 Cool 10” 8/6xD (12vdc input) fans for my hurricane preps, which came in handy during hurricane Irma last September.

Any quality HiCap 18650 would probably be better, even naked cells are fine in your fan and you should be able to extend the duty cycle by 50% using something like NCR-GA Pannies, or even the cheaper NCR-Bs. I’m sure that it’s not pulling more than 500mA on high, so it’s not a strain on the cells.

I would run the good cells down and charge them back up with the internal charging module and then measure the cells when you see that they’re full, just to confirm what the charger is doing. If it’s within spec, then you know and if it’s dwanky, just charge outside the fan.

Good luck.

Chris

atbglenn
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Chris, I’ve decided not to use the original cells. I have plenty of Samsung Q30’s, so I’ll be using those. It’s better to be safe than sorry. I’ll be using this fan on an Anker USB Power Supply most of the time. The batteries will come on handy when I’m not around house power such as camping, etc.

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ChrisGarrett
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atbglenn wrote:
Chris, I’ve decided not to use the original cells. I have plenty of Samsung Q30’s, so I’ll be using those. It’s better to be safe than sorry. I’ll be using this fan on an Anker USB Power Supply most of the time. The batteries will come on handy when I’m not around house power such as camping, etc.

Trust buy verify. They could be quality cells, or they could be re-wrapped laptop pulls, lol.

Quality cells are so cheap that it just makes more sense…but confirm what the internal charging module does. That’s just as important.

Chris

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Chris, I’m on top of it. I’m very careful when it comes to these cells. I never leave them alone when I’m charging. I always charge on fireproof surfaces, and I have a fire extinguishers just in case.

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atbglenn wrote:
Chris, I’m on top of it. I’m very careful when it comes to these cells. I never leave them alone when I’m charging. I always charge on fireproof surfaces, and I have a fire extinguishers just in case.
I think Chris was referring to testing the capabilities of the fan’s built-in charger.
atbglenn
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Pete7874 wrote:
atbglenn wrote:
Chris, I’m on top of it. I’m very careful when it comes to these cells. I never leave them alone when I’m charging. I always charge on fireproof surfaces, and I have a fire extinguishers just in case.
I think Chris was referring to testing the capabilities of the fan’s built-in charger.

I will check that out too.

The constitution must stand, especially the first and second amendments. One other thing, I support ICE 100% 

Pete7874
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ChrisGarrett wrote:
I’m sure that it’s not pulling more than 500mA on high, so it’s not a strain on the cells.
For the 7.5” version, runtime on high is listed as 5 hours. If that’s based on 2×2200mAh cells, then that would translate to about 880mA current draw, give or take.

But your point is still valid – any 18650 cells can handle this.

FYI, protected cells will not fit in this fan. I am currently running down one cell in it to find out at what voltage it stops as I was not able to get an answer if there is any kind of LVP built in.

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