FLEXTAILGEAR Tiny Bike Tire Pump, 100PSI Electric Bicycle Pump, Protable Cycling Pump with Schrader and Presta valves, Integrated Safety Light, 80 Seconds Quick Inflation for Road Bike, Mountain Bike

I let the air out of my mountain bike, the mini pump filled both tires 29 pounds pretty fast, with battery to spare. Good to get to truck, better than pushing. Charges pretty fast.Very small, lightweight, Read all the reports pretty good. A little noisy and gets a little hot not bad. Now I'll let the charged mini sit for a week and see how the battery does.

UPDATE: I finally took it apart to troubleshoot. There's a small 7.4V battery pack, which is made up of two 3.7V 802030 batteries and a protection control module (to regulate charging). One of the two cells is just fine, but the other one got hot and pressurized quickly. (Kids, don't try this at home.) One of the two cells in the battery pack failed after 2 uses. Your mileage may vary, but enough other people are complaining of the exact same problem. In fairness, I had the exact same thing happen to a battery-powered automotive tire pump too. I'm 0 for 2, and done buying rechargeable battery-powered tire pumps. They're clearly not suited for the purpose. --- I tested this when I received it, and it turned on/pumped. I used it about 2 months later to top up my tires, and it seemed to work. But the very next morning I went to use it again and it wouldn't even turn on. I plugged it in and left it for ~4 hours. No light ever came on while plugged in (same USB-C charger I use for my phone every day, which worked before and continues to work after attempting to charge the pump). I've seen this flaw with other handheld pumps - they seem to drain to the point where the charging unit considers the battery damaged/unchargeable, so it turns into an expensive paperweight (at least as paperweights go). Several others are complaining of the exact same thing. In summary, I got one legit use out of this pump, and now it's garbage.

It’s small and easy to carry. Would be nice if it had a gauge. No idea how much air is in the tire. Have to use old school feel the tire to know it’s inflated. Directions are absolutely terrible.

I bought this for my husband for his birthday. Now all his buddies want one. He has been the "go to guy" when somebody has a flat tire on a group ride.

Flextail has amazing customer service !

Maybe if I was doing long distance bike packing or something where I would want more convenience doing a repair, I might carry this. However for my day to day workout and commuting rides this seems excessive. It's relatively expensive, large and heavy. I'd rather carry a small C02 canister or even a mini pump, both are lighter (and less expensive). Also if it runs out of juice or the battery dies, you're out of luck. I'm sure for the people that like this type of thing its great- so I'm giving it a 3, but for me it's a 2.

Liviano y práctico

Bought this last fall and just got it out again to change per instructions every few months, would not turn on. I charged it up and tried to turn it on, it struggled hard to get going then would run, its loud but running. I am concerned by the struggle it has to start running, I am nervous to depend on this while bike packing. Also while looking it over trying to get it to turn on I noticed the USB-C charging port in not well aligned with the opening in the housing poor quality control. The instructions leave a lot to be desired, it dos not even state what the charge light colors mean, leaving you to assume that green means charged. Not sure what to do with it.

Es una bomba para dos pinchazos. Práctica, si eres el que poncha más de dos veces, no es para ti.

Compact and easy to use.

This is a great little portable battery operated bike pump to get you out of a pinch! Very lightweight and works fast.

Funciona de maravilla, super recomendable yo la uso para bici de ruta.

Gift for my husband - he loves it