I got a £20 pair of clippers on amazon a couple of years ago, they're designed for dog faces so they're a little smaller and much quieter than regular clippers and they've done really well. I tried finding the link for them but they're not available anymore apparently, but there's plenty similar. I think ive only charged it about 3 times in the time ive had it! I used to try to keep back ends short with scissors but it resulted in much kicking, spinning and screaming.. having the clippers made a half hour ordeal into a 5 minute job. Luckily the 2 longhaired piggies I have now don't seem to mind scissors but I do plan on getting a new pair of clippers for them. I only dont use the ones I have because they were used on a piggy with E.cuniculi and ive no idea how id go about cleaning them well enough to not risk passing that to the new ones.