Electric Air Pumps 2024

[Xyeet]

There seems to be new version for Xiaomi airpump. You can only get it from China atm. Xiaomi Mijia Air Pump 2 Pro

Seems to have pretty impressive specs compared to v2. Operating voltage 10,8V vs 7,2V and 2500mAh vs 2000mAh:

https://www.aliexpress.com/item/1005007519412436.html

First videos out. It's pretty big compared to older models:

 

[PCeBiker]

First videos out. It's pretty big compared to older models:

I got a better deal on my compressor.
It's got three 2000 mah cells in series, (6000 mah total) so it runs directly off a 12 V car accessory outlet if the batteries croak.
And it was almost half the price.

Yours does have a Staggering 27 Cylinders Mounted in the Cylinder Block though!!

That's Truly Amazing !!

 

[Xyeet]

I got a better deal on my compressor.
It's got three 2000 mah cells in series, (6000 mah total) so it runs directly off a 12 V car accessory outlet if the batteries croak.
And it was almost half the price.

View attachment 186120View attachment 186121

View attachment 186122


Yours does have a Staggering 27 Cylinders Mounted in the Cylinder Block though!!

That's Truly Amazing !!


View attachment 186123

That cylinder thing is just translation error. 2 have 19mm cylinder and 2 pro 27mm

 

[Aushiker]

For anyone in Australia, there is a Frumpa pump on eBay (new, I believe) for $80. Just search Frumpa.

 

[PCeBiker]

That cylinder thing is just translation error. 2 have 19mm cylinder and 2 pro 27mm

It's got three 2000 mah cells in series, (6000 mah total) so it runs directly off a 12 V car accessory outlet if the batteries croak.
And it was almost half the price.

It isn't just a translation error.
Two lithium cells in series, doesn't give you an operating voltage of 10.8V regardless of the capacity of the cell.

I searched "Xiaomi Mijia Air Pump 2 Pro" and found more accurate Specs,..

The "Xiaomi Mijia Air Pump 2 Pro" actually has 3 cells in series, giving it a nominal operating voltage of 10.8V (a fully charged lithium cell is 4.21V, times three in series, is 12.63V)

And it's got three 2500 mAh cells for a total of 7500 mAh, so it's got more capacity than my 6000 mAh compressor.


The problem with my compressor is that if you charge it up then put it in your emergency kit, where it sits unused for ½ a year, the battery is dead when you need it in an emergency. AND, The battery is Shot and won't take a charge.
As far as I know, all rechargeable compressors are the same, and they are garbage after the batteries croak.

My particular compressor will still operate if you plug it into a vehicles 12V outlet.


Does anyone here have a Fumpa Pump where they let it sit unused for 6-8 months and it worked when they needed it?

Yes, up there with the Fumpa pumps.

If the Fumpa Pump doesn't turn into garbage after sitting for a long time, and you can at least charge it back up and use it after it goes dead, then I'd say it's well worth the money.

Perhaps what makes a Fumpa Pump so expensive is High Quality Cells and a High Quality BMS that protects the batteries from over discharge from sitting unused?

 

[Xyeet]

It isn't just a translation error.
Two lithium cells in series, doesn't give you an operating voltage of 10.8V regardless of the capacity of the cell.

I searched "Xiaomi Mijia Air Pump 2 Pro" and found more accurate Specs,..


View attachment 186292

The "Xiaomi Mijia Air Pump 2 Pro" actually has 3 cells in series, giving it a nominal operating voltage of 10.8V (a fully charged lithium cell is 4.21V, times three in series, is 12.63V)

And it's got three 2500 mAh cells for a total of 7500 mAh, so it's got more capacity than my 6000 mAh compressor.


The problem with my compressor is that if you charge it up then put it in your emergency kit, where it sits unused for ½ a year, the battery is dead when you need it in an emergency. AND, The battery is Shot and won't take a charge.
As far as I know, all rechargeable compressors are the same, and they are garbage after the batteries croak.

My particular compressor will still operate if you plug it into a vehicles 12V outlet.


Does anyone here have a Fumpa Pump where they let it sit unused for 6-8 months and it worked when they needed it?



If the Fumpa Pump doesn't turn into garbage after sitting for a long time, and you can at least charge it back up and use it after it goes dead, then I'd say it's well worth the money.

Perhaps what makes a Fumpa Pump so expensive is High Quality Cells and a High Quality BMS that protects the batteries from over discharge from sitting unused?

I've been using my original Xiaomi Electric Compressor for about six years now. It's still working great for pumping up my bike tires.

 

[PCeBiker]

I checked out Fumpa Pumps and these are the Canadian prices,..

I've got no problem using Quality equipment, but I generally don't like to pay for it.

But if you don't have to throw out your Fumpa Pump if the battery runs dead, then I'd say it's well worth the money.

For anyone in Australia, there is a Frumpa pump on eBay (new, I believe) for $80. Just search Frumpa.

If that pump is actually a "Frumpa" pump, then it's probably a cheap knockoff of an actual Fumpa pump?

 

[PCeBiker]

I've been using my original Xiaomi Electric Compressor for about six years now. It's still working great for pumping up my bike tires.

My pump is 1½ years old now and is working great.

I talked to @m@Robertson just after I bought my pump, and realized that needed to keep it charged and in use to keep it happy and healthy.

@Nvreloader had the same pump as I have, and he had to buy a new one after his sat for 6 months unused.

I fully charge mine, then run it for a while so it's not sitting at full charge (just like an ebike battery) then I charge it when I'm down to one bar (out of 3).
I only use it at home now, but it really is nice to have.
I leave it out, and use it all the time, so I can keep an eye on the battery level.
I use it as a battery bank as well, and it does have a Huge battery.

I don't just just charge it up and save it for an emergency.

I also run the compressor for a minute or so after I pump up a tire.
The compressor gets HOT during use and I figure it's best to blow some cold air through it before I turn it off.
The compressor doesn't get hot if it's not "compressing" the air and blowing air through it with no load helps cool it off. (Like a turbo charger on a car.)

The instructions say to let it cool off after 10 minutes of use.
I run it disconnected from the tire first until the air blowing out of it cools off a bit.

 

[Stefan Mikes]

Nobody has mentioned the Rockbros Electric Mini Pump?

 

[PCeBiker]

Nobody has mentioned the Rockbros Electric Mini Pump?

I checked it out on Amazon an 12% gave it a 1 star review,..

KMC who gave it one star and posted a video of it not working, didn't read the instructions, so his negative review doesn't count.

The guy got a free pump for his review of the product, and didn't even bother to read the damn directions.
It's a $100 pump with tax ,..

 

[PCeBiker]

For anyone reading this thread, a lot of pumps come with an adjustable valve that fits either a Schrader or Presta valve.

This is my micro pump,..

 

[m@Robertson]

The problem with my compressor is that if you charge it up then put it in your emergency kit, where it sits unused for ½ a year, the battery is dead when you need it in an emergency. AND, The battery is Shot and won't take a charge.
As far as I know, all rechargeable compressors are the same, and they are garbage after the batteries croak.

The Fumpas seem to live longer. Probably a cell quality issue. But the (pretty nice) Chinesium ones I bought started giving out after about 18 months. Not exactly a big surprise as li-NMC cells are what they are and we all know they don't like being left to sit all charged up.

My little corded pumps still all work great. The oldest dating back to 2019. No need to maintain them, either.

 

[Xyeet]

Xiaomi also seems to make quality stuff.

Here is full teardown:

 

[fooferdoggie]

well, this blows them all away. There's no need to even get off your bike or stop riding.

863K views · 4.3K reactions | ⚙️ IS This How Marianne Vos WON? 🏆 . 📺 Watch The Full Video LIVE NOW On #YouTube! 🎬 🔗👉 https://www.youtube.com/watch?v=-dDZXYEV2-s 👈🔗 . 🔍The Hottest New Tech At Gravel World Champs 2024! . #GCNtech #globalcyclingnetwork

⚙️ IS This How Marianne Vos WON? 🏆 . 📺 Watch The Full Video LIVE NOW On #YouTube! 🎬 🔗👉 https://www.youtube.com/watch?v=-dDZXYEV2-s 👈🔗 . 🔍The Hottest New Tech At Gravel World Champs 2024! . #GCNtech...

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[PCeBiker]

well, this blows them all away. There's no need to even get off your bike or stop riding.

863K views · 4.3K reactions | ⚙️ IS This How Marianne Vos WON? 🏆 . 📺 Watch The Full Video LIVE NOW On #YouTube! 🎬 🔗👉 https://www.youtube.com/watch?v=-dDZXYEV2-s 👈🔗 . 🔍The Hottest New Tech At Gravel World Champs 2024! . #GCNtech #globalcyclingnetwork

⚙️ IS This How Marianne Vos WON? 🏆 . 📺 Watch The Full Video LIVE NOW On #YouTube! 🎬 🔗👉 https://www.youtube.com/watch?v=-dDZXYEV2-s 👈🔗 . 🔍The Hottest New Tech At Gravel World Champs 2024! . #GCNtech...

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That's pretty cool !!

I remember seeing something similar on "Ice Road Truckers" where the tires could be inflated/deflated from inside the cab, but I think the valve had to spin with the wheel because the air was fed in from the stationary axle, so it had to hold the pressure with O-rings to allow things to rotate.

With that setup you posted, everything spins with the wheel so there's no need for an "articulated" pressure connector.

I remember my uncle used to unscrew one of his sparkplugs on his car and screwed in an adapter with a hose to pump up his tires with the engine running on the 7 remaining cylinders.

I suppose that he got a little fuel vapor in his tires, but he got them pumped up.

 

[Nvreloader]

Well, the second self contained (Battery type) just gave up the ghost, I have checked it every month since I bought it, it is charged, but will NOT turn on, like it should.
It is of my opinion that these type of air compressors will not take being bounced around in my pack while riding on my rough trails.
I have the new air pump that fits and bikes battery's either 45v or 52V, it works EVERY TIME I have pulled it out of the pack.
I also have C02 jugs as a backup, I am thru buying battery contained air pumps.
ymmv

 

[PCeBiker]

I have the new air pump that fits and bikes battery's either 45v or 52V, it works EVERY TIME I have pulled it out of the pack.
I also have C02 jugs as a backup, I am thru buying battery contained air pumps.
ymmv

I don't carry my compressor with my e-bike anymore.
I think you had the same compressors that I have.

Mine still works though and I use it all the time at home.

I just carry my air shock hand pump with me now and it works fine.
I pumped up my 27.5" X 2.8" semi-fat tire from flat to ten psi in five minutes. That's good enough and fast enough for me.

I've only had one flat with my two e-bikes with a total of over 8000 km between them and that was my fault.
I installed a new tire, the rim tape slipped and the spoke hole poked through the tube.

 

[6zfshdb]

Well, the second self contained (Battery type) just gave up the ghost, I have checked it every month since I bought it, it is charged, but will NOT turn on, like it should.
It is of my opinion that these type of air compressors will not take being bounced around in my pack while riding on my rough trails.
I have the new air pump that fits and bikes battery's either 45v or 52V, it works EVERY TIME I have pulled it out of the pack.
I also have C02 jugs as a backup, I am thru buying battery contained air pumps.
ymmv

I don't carry my Fumpa self contained battery pump either when I ride. I keep it in my vehicle to top off tires before or after a ride. Like you, I also carry a mini hand pump and co2 inflator on the bike. It's hard to damage either from bouncing around in a bike bag.

I like to put my $$ toward preventing flats, rather than fixing them. The combination of Schwalbe Marathon + tires, heavy duty tubes and slime has worked very well for me.

 

[Nvreloader]

6zfshdb
+1 Same here...