portable air compressors for tires

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alsmith   100 kW

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Re: portable air compressors for tires

Post by alsmith » Feb 24 2018 6:38am

My 48v compressor arrived today but....
it seems to be 12V. It has car cigarette lighter connector not the IEC connector shown in the product pictures, no sticker saying 48V on the unit, and the motor itself is stamped 12V. I've emailed banggood for their story.....

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tomjasz   1.21 GW

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Re: portable air compressors for tires

Post by tomjasz » Feb 24 2018 9:54am

alsmith wrote:
Feb 24 2018 6:38am
My 48v compressor arrived today but....
it seems to be 12V. It has car cigarette lighter connector not the IEC connector shown in the product pictures, no sticker saying 48V on the unit, and the motor itself is stamped 12V. I've emailed banggood for their story.....
EEGADS! Another 12V I don't need! Which one? Black or blue?
Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

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teklektik   10 GW

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Re: portable air compressors for tires

Post by teklektik » Feb 24 2018 11:10am

I pack Topeak Turbo Morph (with gauge) pumps on my bikes which are pretty big and push a lot of air each stroke - great pump IMO. Big Bens, Fat Franks, etc inflate pretty quickly so I'm not really looking for a powered pump. Still, this thread stirred me to spring for a 12V pump to air up at the trail head or to truck out to yard equipment using one of several 12V battery packs that I have on hand.

I came across this 12V pump on Amazon. Bought it on Prime for $20. The main body and compressor head are heavy steel/metal construction, weighs a ton (4+ lbs), pumps pretty fast (0.75 cuft/min), 10 minute run time, 14A max, brass fittings, removable hose, bag, and really pretty quiet. The gauge is crap, but once you know to inflate to XYZ instead of ABC - no biggie.

Anyhow, off topic, but FWIW it seems a nicely made example of this kind of thing if you are in the market...

Q Industries MF-1035 Santa Ana Portable High Volume 12V Air Compressor

MF-1035_compressor.png
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Re: portable air compressors for tires

Post by dilkes » Feb 24 2018 11:36am

alsmith wrote:
Feb 24 2018 6:38am
My 48v compressor arrived today but....
it seems to be 12V. It has car cigarette lighter connector not the IEC connector shown in the product pictures, no sticker saying 48V on the unit, and the motor itself is stamped 12V. I've emailed banggood for their story.....
I'd be curious about what they say/do. I have one on the way and I sure don't need a 12V unit.

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Re: portable air compressors for tires

Post by eCue » Feb 25 2018 5:20pm

Running a 12v pump on 54v is the equivalent of running a 36v motor on 162 volts :D
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Re: portable air compressors for tires

Post by Alan B » Feb 25 2018 7:56pm

Lunacycle lists what appears to be the same compressor that fechter showed, they say it works from 42 to 72V. I haven't bought one, so have no data on it. A 3D printed case would be a good accessory for it, I'd design one if I had it. OpenSCAD and a 3D printer makes a powerful creating combination.

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eCue   10 kW

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Re: portable air compressors for tires

Post by eCue » Feb 26 2018 2:38am

With luck bangood sends out the correct version or a refund.

To make them work ebay sells a few different waterproof step convertors in various voltages
I noticed larger amp epoxy sealed convertors but for my use I picked up this 36 watt step down convertor to power a multi type battery charger

Size : 46 x 32 x18MM

Image


Input voltage :DC 15-55V
Output Voltage: DC 12V
Output Current: 3A
Output Power:36W
Lowest dropout: 2V
Output ripple peak: 100
Conversion efficiency:exceed 85%
Item Material: Epoxy potting, seismic, moisture, dust, long term stable and reliable quality
Protection: over-current protection; over temperature protection; troubleshooting automatically resume work
Super-thin, small size, high efficiency, easy installation and use.l
Operating temperature: Industrial grade (-40 °c to +85 °c) (If the ambient temperature exceeds 40°c,please reduce the power output,Or enhance heat dissipation)
Full load temperature rise: 50 °c
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Alan B   100 GW

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Re: portable air compressors for tires

Post by Alan B » Feb 26 2018 2:19pm

Motor currents are considerable, 3A won't power much in the way of a compressor.

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eCue   10 kW

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Re: portable air compressors for tires

Post by eCue » Feb 26 2018 6:15pm

The 3A and 5A versions cost about $7 the 20A version cost about $15 u.s and has a larger footprint but is at least epoxy potted
Last edited by eCue on Feb 26 2018 6:22pm, edited 1 time in total.
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Alan B   100 GW

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Re: portable air compressors for tires

Post by Alan B » Feb 26 2018 6:20pm

The whole compressor is about $20-25 US, with whatever electronics required already included.

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eCue   10 kW

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Re: portable air compressors for tires

Post by eCue » Feb 26 2018 6:23pm

Yes , I expect they will get to keep the order and get either a refund or a new pump :D
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tomjasz   1.21 GW

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Re: portable air compressors for tires

Post by tomjasz » Feb 27 2018 12:04am

I’ve had one or two $20 issues with Banggood, it required a few pictures and two emails to get replacements or a refund. I’ve been happy and am a level 4 customer.
Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

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alsmith   100 kW

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Re: portable air compressors for tires

Post by alsmith » Mar 01 2018 8:35pm

I know Banggood were on holiday but should have been back this week but no reply yet. I did send pics to them but haven't posted any here because photobucket.com stopped the hosting of pics without getting a fee which is too much for the number that I do publicly post. Speaking of which- are there any free photo hosting sites that are any good?
Oh- it was the blue one. It's easy to take apart then its just looking for the marking on the motor. I was concerned because there was a 12V lighter plug on it rather than the IEC one.

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Re: portable air compressors for tires

Post by wturber » Mar 01 2018 9:07pm

You don't need a photo hosting site in order to post pictures here.
"Commuter - DC Booster"
Iron Horse 3.0 hardtail - 48V / 1000W / 470rpm generic Chinese DD Hub motor (ebay)
8 x 36v 4.3ah 10s 2P battery packs - 1500W 30A DC Boost Converter delivers 54v and about 1000 watts peak
53T/42T Sakae Road cranks - 30mph+ on flats
viewtopic.php?f=2&t=90369

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Re: portable air compressors for tires

Post by amberwolf » Mar 01 2018 11:35pm

Just click the Attachments tab below the text entry box when you post or edit a post, then Open File and choose the images you want to attach to the post. (you can pick one at a time or multiple).

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eCue   10 kW

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Re: portable air compressors for tires

Post by eCue » Mar 02 2018 5:19am

If you dont mind your photos being public you can use google photos although it tends to download all your photos at once then lets you set a folder apart for photos you want to link. Its kind of odd as my whole iphones photo set is on google now haha weed pictures etc lmao. Im not hiding from anyone fuk them Im living free :D
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Alan B   100 GW

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Re: portable air compressors for tires

Post by Alan B » Mar 02 2018 10:52am

I use Google Photos, and don't have this issue. I only put the specific photos I'm actually sharing into a public folder, the rest are private as usual, and you can delete them if you wish, or load individually instead of the backup mode. Let's not get off topic here, if you choose any service to backup your photos, that's what they will do. There are other ways to load photos, it is up to you.

Does anyone know if the 48-72V compressor discussed above has a different motor, or a circuit to convert the voltage down?

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eCue   10 kW

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Re: portable air compressors for tires

Post by eCue » Mar 02 2018 3:22pm

To me it matters not as well but to others it could be important to keep some things private from government access.
I couldn't lead people into a privacy trap blindly as thats whats Google photos is Its a privacy trap that I could give a rats ass about but others might :idea:

I will say it again :D Goggle Photos will download all your photos off the device once you give it access. It does not ask if you want all your Photos online instead it ask for permission to access your Photos once given it immediately uploads all the photos and videos on the device to the Cloud
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alsmith   100 kW

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Re: portable air compressors for tires

Post by alsmith » Mar 02 2018 7:01pm

When I hover over the pic icon on the toolbar it shows Insert image [img]http://image_url[/img]
so I assumed only http links were valid not uploads.

Anyhow, thanks Amberwolf
Attachments
188_0036a.jpg
188_0036a.jpg (51.68 KiB) Viewed 431 times

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Re: portable air compressors for tires

Post by eCue » Mar 03 2018 1:23am

This is a guess .. I think you may be able to attach the file then click on the file to view it then copy the image location go back a page and post it as a photo link. If you try it make sure to leave the file attached as well.
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wturber   100 kW

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Re: portable air compressors for tires

Post by wturber » Mar 03 2018 3:06pm

alsmith wrote:
Mar 02 2018 7:01pm
When I hover over the pic icon on the toolbar it shows Insert image [img]http://image_url[/img]
so I assumed only http links were valid not uploads.

Anyhow, thanks Amberwolf
To show inline without hosting:
1) Click on the Attachments Tab below the edit window where you type your post.
2) Click the Add files button and find your file using the file requester.
3) Once the file is selected, you'll have an option to Place Inline or Delete file. Pick Place inline, of course.

I'm not sure if this threshold is correct or not, but I've found that making sure that no image dimension is greater than 1000 pixels seems to ensure that the image will display fine. It's probably a good idea to keep the files bytes down below 200kb and probably closer to 100kb.

I resized your image to 1000 pixels wide and it displays inline nicely.
188_0036a.jpg
188_0036a.jpg (43.73 KiB) Viewed 782 times
"Commuter - DC Booster"
Iron Horse 3.0 hardtail - 48V / 1000W / 470rpm generic Chinese DD Hub motor (ebay)
8 x 36v 4.3ah 10s 2P battery packs - 1500W 30A DC Boost Converter delivers 54v and about 1000 watts peak
53T/42T Sakae Road cranks - 30mph+ on flats
viewtopic.php?f=2&t=90369

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tomjasz   1.21 GW

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Re: portable air compressors for tires

Post by tomjasz » Mar 04 2018 12:15am

Alan B wrote:
Mar 02 2018 10:52am
I use Google Photos, and don't have this issue. I only put the specific photos I'm actually sharing into a public folder, the rest are private as usual, and you can delete them if you wish, or load individually instead of the backup mode. Let's not get off topic here, if you choose any service to backup your photos, that's what they will do. There are other ways to load photos, it is up to you.

Does anyone know if the 48-72V compressor discussed above has a different motor, or a circuit to convert the voltage down?
still waiting for my replacement...
Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

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mr.electric   10 kW

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Re: portable air compressors for tires

Post by mr.electric » Mar 04 2018 1:56am

here it is for 48-72v. Simple. shipped here in the usa.

https://lunacycle.com/luna-e-pump/
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Re: portable air compressors for tires

Post by tomjasz » Mar 04 2018 4:26pm

mr.electric wrote:
Mar 04 2018 1:56am
here it is for 48-72v. Simple. shipped here in the usa.

https://lunacycle.com/luna-e-pump/
would likely stress out the zipper if packed in their triangle bag.
Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

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Re: portable air compressors for tires

Post by Papa » Mar 06 2018 1:47am

This thread has lingered with me since its inception - I genuinely needed a DC portable compressor, and managed to score a decent one at a local pawn. He had several, but I chose a vintage Coleman "Inflate-all 150". The pump dims are 4.8" x 5" x 3". Unlike the eBay example, mine is NOS and I departed the store with 12 bucks less in my pocket. It's a tad chunkier than the Asian examples I looked at, but I don't intend to pack it every ride. A quality hand pump usually follows me away from home.

https://www.ebay.com/itm/Vintage-Portab ... 0005.m1851
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