Dr.Meter 4000mAh Rechargeable Air Pump for Inflatables Ultra Fast Inflator | Portable Quick-Fill Inflate/Deflate Air Mattress Pump for Outdoor Camping Inflatable Pool Float Boat Raft Swim Ring Airbed

This pump works wonderfully! We went camping for two nights. It filled a queen & two twin mattresses, refilled them the second night, inflated 4 tubes for the river, and deflated the mattresses. We still had over half the battery left. It’s super compact and easy to store.

This is a mighty little pump. I love that you can charge it and take it On The Go. We take it on the pontoon boat and inflate our inflatables when we’re already out on the water so we needed something just like this. I’ve used it several times to inflate fairly large items and it does the job wonderfully.

[UPDATE 23 Jun 2026] After charging (no lights) for several more hours, I turned on the switch and waited 3-5 seconds. The motor started turning! It was a little weak, so I charged for 12 additional hours. When I tested it after that charging period, it worked perfectly!! So if you think it is not charging, just give it about 24 hours of charging before giving up and use a reliable cord and outlet. I do not recharge batteries other than cellphone batteries while I am sleeping, so it may take two sessions to fully charge. Worked well while it worked at all. I used it to inflate a large air mattress and then to top off the air three or four times. While deflating it, a little each day for 5 days, the pump stopped working. Thinking it just needed to be charged, I plugged it in. No lights. I tried different cords, adapters, and outlets. No lights. I left it plugged into the best cord and USB outlet that I have for several hours. No lights, no nothing. It is now in my Hazardous Waste Recycling pile. What a waste (no pun intended).

If I could give this air pump more than five stars, I would. In a nutshell: + powerful air pump + incredibly long-lasting charge + small/easy to travel with + rechargeable & cordless! + fits multiple sizes + inflates & deflates products quickly + relatively quiet (considering it’s an electric air pump) + amazing price I just broke out my air pump for the first time this summer since using it last summer and it still had a 75% charge to it. Even after inflating my raft AND deflating my raft, 3/4 charge lights were still on. I do wish I could get an additional attachment for my paddleboard, but otherwise, I absolutely LOVE this product!

This air pump works well. There is one peculiar design issue. The power switch is a simple toggle switch. It is easy to reach and flip on/off. Maybe too easy. When I opened the box, there was a plastic cover taped over the switch to prevent it from turning on during shipping. Great. But what's supposed to keep it from turning on when packed for a camping trip? I'm trying to keep the protective plastic cover, but I don't think it will last long since it's just a piece of tape holding it in place. When designed, it should have had a more protected switch.

We have had our HT-420 for two years now. We use it to (quickly) pump up inflatable kayaks (about 15 kayaks per charge, but probably more) and to inflate and deflate our rooftop tent air mattress. We find its vacuum (deflate) setting to be as powerful as its pump setting. Love that it’s rechargeable too (no separate batteries)—light bars tell you how much charge you have left. We just love this little guy—in fact I think I’ll buy another in case it ever gets discontinued

I take a queen-size, triple thick air mattress to a two-week long camping trip every year. During the day the mattress tends to deflate just enough to get squishy and two days of deflation makes it impossible for me to sleep on. Unfortunately, the built-in pump requires AC power and I have nowhere to plug it in near my tent in the woods. Initially I use a power converter in my car but after everyone else sets up tents I can't park my car right in front of my door. But I bought this pump to remedy that, and I've used it for two years now with no issues. I top off my mattress every night and this pump keeps charge for the entire event. If it did die, I could charge it from the same power supply I use to charge my phone. A great buy!

I use it to inflate a 12 ft kayak. It’s great. Inflated my kayak then had to deflate to put in my car trunk. Then inflated again to all the kayak to dry completely. The air compressor still has 4 bars of power out of 4 bars. I’m impressed with this little machine.

🔧 Uso testato Ho gonfiato un materasso singolo, uno matrimoniale da campeggio, due grandi ciambelle e un gommoncino per mia figlia. Tutto con una sola carica, e la batteria non ha perso nemmeno una tacca! --- ⚙️ Contenuto della confezione Pompa elettrica Dr. Meter 3 ugelli (S–M–L) per adattarsi a qualsiasi valvola Cavo USB‑C per la ricarica Manuale illustrativo (manca solo una sacca, ma è un dettaglio trascurabile) --- 🔋 Specifiche principali & prestazioni Batteria al litio 4000 mAh: autonomia di ~30 min di funzionamento continuo Motore compatto ma potente: flusso d’aria 250 L/min, pressione max 0,44 PSI — gonfia e sgonfia velocemente Display LED: indica la percentuale di carica residua Porta USB 5 V: funziona anche come power bank per smartphone o tablet Rumorosità nella media: adatta per usi da esterno, non fastidiosa --- 👍 Punti di forza Autonomia eccellente: il 4000 mAh fa davvero la differenza Funzione “2‑in‑1” pratica: gonfia e sgonfia, oltre a ricaricare i device Tre ugelli versatili per ogni tipo di inflatables Ultra‑compatta e facile da portare in borsa, zaino o valigia Rapporto qualità‑prezzo eccellente (circa 25–27 € su Amazon.it) --- 👎 Aspetti da migliorare Manca un sacchetto o custodia per riporla insieme agli accessori (come hai giustamente notato) Rumore: anche se normale, alcuni utenti sensibili potrebbero preferire qualcosa di più silenzioso --- ✅ Conclusione Questa pompa Dr. Meter è un must-have per campeggio, mare o viaggi. Potente, affidabile e utile anche come power bank, ha superato abbondantemente le mie aspettative. Se stai cercando qualcosa di compatto, multifunzione e con batteria duratura, te la consiglio caldamente.

Je sais pas si la pompe sera fiable sur le long terme mais dans l'immédiat c'est vraiment génial pour gonfler bateaux, bouées etc sur la plage, ça vous change la vie !!!

Pumped air mattresses super fast. It can also be used to deflate air mattresses and as a power bank. Nice little gadget.

Bonne qualité et livraison rapide.

It blew up one of our large double hight airbeds in less than 5mins. Used less than one bar. Didn't even get warm. It will be a great asset when camping. Will also be able to charge my phone with it. 😊