Re: I lost my charger to my nexus 5 phone. what kind of charger can I use?
Any charger where you can plug in a micro USB cable into it. Can be 1amp plug, but could use a 2.0 amp one for slightly faster. Go on eBay, any branded one will work (Samsung, etc). I'd be a little bit wary of the super cheap ones from China, but they will work too.
Get this one. Not only will it work on your N5, but if you upgrade to a new phone that supports "quick" or "turbo" charging like many of the new phones do, then you'll be ready to go. I have three of these and they work great. Quality charger from a reputable company.
And get a good, quality charging cable if you don't have your OEM cable anymore.