Folks,I've just purchased an item that may save some effort and battery life for us...See the accompanying link.This looks like an answer to the difficult task of gaining access to batteries, pulling off caps, using all manner of funnel and flashlight - sometimes with a mirror, to fill our batteries with water. If you're like me you postpone that job as long as possible. No more! A few pumps on the bulb and all cells are full to the right level, no mess.I saw this in an RV store here in Las Vegas and bought it. Has anyone else used this setup?