[...] I was skeptical that this thing could fill a trailer tire but it did it very well, they are 60 pound tires and they were down around 20, it filled three tires without killing the battery but you could hear the difference in the pitch of the pump so it may not have had too much more left in the battery. This is a handy little pump and it has a locking mechanism on the back to prevent it from accidentally being turned on. The only thing I don't really like is that you have to hold the button in to make it work but there are buttons on both sides of the pump. The pump is sold alone, again you need to have a battery and charger bought separately or if you've got one of the tools you already have what you need. This should work great for bicycles, balls, air mattresses, etc., it comes with a selection of tips and the air hose with gauge screws off and stores on the front of the pump. Pretty nice gadget.
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