FLEXTAILGEAR Zero Pump Air Pump for Inflatables, 1.2 oz Ultra-Mini Electric air Pump Portable Air Mattress Pump, Rechargeable Air Pump for Pool Floats Air Bed Air Mattress

I love this thing. On my backpacking trips, one of the most hated camp chores at the end of a huge day was to blow up my mattress. I despised it. This is one of only 2 maybe 3 luxury items I take. The weight penalty is very minimal and brings me 100 percent satisfaction.

My first thought was “Where have you been all my life”. After many years of blowing into sleeping pads, using the built-in hand pumps, or the giant stuff sacks that squeeze air into the pads … I have finally found a MUCH BETTER solution. The Flextail Zero Pump is astonishing! The entire carrying weight (pump + battery + adapter) is 2.15 ounces, and measures about 1” x 3”. The pump inflates all my pads in less than 90 seconds, deflates them in less time, and can inflate my largest sleeping pad 25 times on a single battery charge! And I found a great little plastic container on Amazon to safely pack the pump and one adapter when travelling (see below and pics). Details: The pump inflates my Large Thermarest NeoAir XLite NXT (largest size they make) in 80 seconds and deflates it in less than 60 seconds. That is getting the pad to a “hard inflation” – not soft or squishy. The pump inflates my Exped Synmat7 LW (Large Wide size) in 53 seconds (also “hard inflation”). It is not as good at deflating the Exped pad since the pad has built-in foam. But overall, I was stunned – it is fast and generates enough air to actually inflate the pads even past the point I would normally fill them. People complain about the noise of the pump – I think it’s not an issue. Yes – it runs at high speed and sounds a little like a dental drill. But it’s not as loud as normal speaking voice, and it’s only for 80 seconds. Adapters: The box comes with 6 different rubber adapters, designed to fit the pump on to many different sleeping pads. It was easy to find the adapters that fit my 2 pads, and the rubber adapters really created an airtight connection. Some folks complain they cannot find an adapter that fits their sleeping pad. But that’s why we order from Amazon – return it if it doesn’t work for you. Power: I ran the pump, beginning with a fully charged battery, until it ran out of power. That took 33 minutes. Based on that, I think I could inflate my Large NeoAir pad about 25 times. Surprisingly – this actually matches what Flextail states on their website 😊 Or inflate and deflate it 14 times. I could almost go for a month of backpacking if I only used this pump to inflate my sleeping pad. WOW! Note: you must double tap the power button to start the unit – which is a nice safety feature to prevent it turning on accidentally in your pack. Battery: The unit comes with a RCR123A battery that provides 650 mAh (or 2.41 Wh) of energy. The battery needs to be taken out of the pump to charge; the battery has a built-in USB-C port and can accept charging at 350 mA (which is so low, almost any charger will charge it). It took about 2 hours to charge the battery from 0% to 100%. The battery has 2 small LEDs on the top (“+” terminal) that glow red when it’s charging, and green when it’s charged (see pictures). The manual states you should not swap this battery for a regular “CR123” type of battery. I tested it with a CR123, and it ran fine. Seems to run a little slower – which makes sense since the CR123 is a 3.0V battery and the RCR123A is a 3.7V battery. Other Amazon reviewers also report it works fine with a CR123. If you want to stick with the RCR123A (I plan to), those batteries are not available everywhere, and this might be a problem on long through hikes if your battery hits its end of life. You can easily order another RCR123A (e.g. from Amazon) and obviously you can carry a spare. More interestingly, you can swap out the battery for another RCR123A with more power. Flextail sells a battery on their website with 900 mAh, Amazon sells 800 mAh, and there are batteries up to 950 mAh on the market. 900 mAh should give me 34 inflations on my NeoAir pad. Concerns: The case is made from thin aluminum. I worry that I could easily bash the case in my backpack – which could make it impossible to unscrew the case to charge the battery, or damage the pump housing. The solution is a 100ml Transparent Plastic Centrifuge Tube – which is big enough to hold the pump with one attached adapter (needs internal dimensions of 100mm x 32mm). See pictures. Total weight with pump, adapter, battery and centrifuge tube is 2.85 oz. A five pack of these tubes is about $7. (See https://www.amazon.com/Transparent-Plastic-Centrifuge-Graduated-Bottom/dp/B0C4TC59X3?pd_rd_w=qlLls&content-id=amzn1.sym.2fa40e00-e100-448a-9cac-99baa94dfabf&pf_rd_p=2fa40e00-e100-448a-9cac-99baa94dfabf&pf_rd_r=DKC7SPTYTJK1GQ6KR7VN&pd_rd_wg=cs1RM&pd_rd_r=0f772bdc-615a-4b3f-8870-926c3d0078c1&pd_rd_i=B0C4TC59X3&ref_=pd_bap_d_grid_rp_0_1_ec_pd_nav_hcs_rp_2_t&th=1) Because rubber can tear, I worry a little about the longevity of the rubber adapters. The ability to order extra rubber adapters would be nice. Lastly – old guy speaking - a larger manual with bigger print (manual pages are 2” x 3.25”) would be appreciated.

2ND EDIT: Since the replacement batteries didn't work, I contacted the company and they replied the next day requesting a short video of the problem. I sent one immediately but then had to ping them twice before they responded - they offered me a full refund or a replacement. I chose the replacement hoping that I had just received a stray bad pump before. It arrived today and same problem. It was shipped with the battery installed so I charged it fully and even tried one of the other replacement batteries I had purchased for the original pump. Still the pump would not run. At this point the ZERO pump offers ZERO confidence and deserves ZERO stars. I have contacted the company and volunteered to ship back both pumps at their expense in exchange for a full refund of the original purchase. EDIT: I ordered replacement batteries, RCR123A with the built-in charge port similar to the original battery - it was a 2-pack. I did not expect the batteries to be charged but they were slightly longer (maybe 1mm) so I put one in to make sure they fit, and the pump ran. I pressed the switch again, nothing. I put the other battery on the charger until it turned green, put it in the pump, nothing. So I put the first battery back in - nothing. Isn't this the definition of insanity? Expecting a different result??? LOL. Next step... I'm calling the company to see what they suggest. I love this pump when it works but still not confident enough in its reliability to depend on it in the backcounty. I just returned from a 3 day trip with a friend who also has one but hasn't had it long. She wisely had removed the battery when storing but did comment that it didn't seem as strong as when she first got it. I've had mine a little less than a year and it no longer works. It was great in the beginning - the adapters allowed me to use with my Nemo air pad and my Exped foam mattress. I'd used it maybe 4-5 times, then one time, it wouldn't come on. I thought maybe it had accidentally come on in my pack (you'd think I would have heard it) and run down my battery. I recharged it, put the battery back in and hit the switch. It ran, I turned it off, hit the switch again - nothing. Recharged the battery again, repeated with same result. Now it won't come on at all. I'm going to try a new battery but it could be the switch. Either way, I need dependable gear in the backcountry and I'm not confident enough in this pump to not carry a backup so why take it?

Works ok for me with Big Agnes Rapide SL and Exped Megamat. No problems with the battery life or charging. The threads are very fussy and fragile and feel "gritty". Tip: Scrape a *little* candle wax on them and they'll turn more smoothly. Line up the threads carefully and don't force them. The adaptors worked for my pads. The deflate function doesn't work well for the Exped because it has a gasket that flaps outwards, making a seal with the inside face of the adapter. The pump just creates a seal and can't pull any air from the pad. Inflate works fine.

Got this pump to use for baxkcountry backpacking and it is perfect. The size and quietness of the pump are two things that are great for carrying long distances in a backpack.

Great pump. I use this during my long distance backpacking trips. I plug it into my sleep pad and let it do it's thing, while I am preparing my dinner. My "luxury" item of hiking.

I’m not sure this thing is worth it. It will blow up your mattress a little better than 3/4 s of the way. You have to use the bag or blow it up the rest of the way yourself. I used it on my big Agnes mattress and my ZenBivy mattresses. I like a firm mattress because I’m a side sleeper. Good thing about it is the rechargeable battery. Also it gets you most of the way there so you can do other things while it’s doing that.

Good size and weight for bushwalking kit! Seems to work alright. A little slower than expected, but respectable for its size! I’m a fan…

La relación costo beneficio es muy alto , la bomba cumple medianamente lo que promete, la calidad de los accesorios es suficiente nada premium como lo esperaba por el costo y tantas reseñas positivas que hablan de la bomba , las utilicé con Klimyt y forzadamente cumplió su trabajo, 7.5 de calificación 🥲

It's a pricey little sucker but it works great with my Big Agnes sleeping mat and pillow. I love how small and light it is! The included instructions don't mention that the USB-C charging port is built-in to the battery. I could not find any mention of it in the booklet and had to google how to charge it. Also, the battery compartment cap threads feel very roughly machined. It's turned on by double-clicking a button that is flush with the housing and there doesn't seem to be a lockout so I would pack it within something soft so that it doesn't accidentally get turned on. Anyway, I would def buy it again.

エアポンプ本体がここまで小さく持ち運べるのはありがたい。 幅広く使えそうなのも良い。

Hikentureのマットやまくら、WAQのマットを膨らますために購入。Hikentureのまくらには導入口のサイズが合わず、やむなく他のポンプのアタッチメントを接続して使用。マットを膨らますには多少圧力が弱く、このポンプを使用後手作業にてマットに付属のケース袋で追加で膨らます必要がありますが、とりあえず何度も手作業で膨らます必要は無くなるので、このコンパクトさは嬉しく使用させていただいています。充電電池の劣化がどのくらいか、今後が心配で、同様の充電電池がアマゾン内に無いか調べたのですが、あまり信頼の置けそうなものが見つからず、使い捨てになるかもしれません。とりあえず使えるだけは使おうと思います。