This Qwik Fill is great for batteries that aren't available. I have an RV with a battery that is very difficult to service. Before installing this fill kit. I would have to disconnect the batteries because the cables were too short and pull out the battery compartment to fill the batteries. In my case, this has to be done every 3-4 months. Needless to say, I didn't enjoy this tactic at all. However, after installing this kit for my batteries, it became very easy to charge them. A NOTICE! You will need a Qwik-Fill hand pump, which is not included. This is one of the reasons for the 4 instead of 5 star rating. I also want to see how long this kit lasts over time and I'll come back to the review. It definitely made refilling batteries with distilled water easier! If your situation is similar to mine. I would recommend this kit!