Heavy Duty Battery Filler With Auto Shut And Drip-Free Valve | 2-Quart Capacity Fast And Extra Safe. Battery Filler Bottle For Golf Cart And Automotive Tools. Avoid The Mess When Serving Your Units

The Battery Filler works great. It inputs the correct amount of water into each battery cell in my golf cart. My last filler lasted over 5 years. I like the new design with an opening on the top to pour the water into. Would purchase this product again.

I have a watchdog basement sump pump with a battery that is translucent that is supposed to make refilling simple. It is not, at all (very hard to see fluid level). After several years of struggling got this and it makes it so simple. Literally, just press down until it stops filling. Takes about five minutes and I barely need to lay attention.

It looks like it will work perfectly and I'm looking forward to using it. Hopefully no more spills in the garage.

Haven't used it yet.

When I decided to add more fluids to my four-year-old batteries I decided since this is specific fluid I’d like to use the right tools for the right job rather than using some other container and I’m glad I did. It does just fine and filling the portals on the batteries without spilling

Despite the claim that automotive batteries are maintenance free, they're actually reduced maintenance. That means we still need to check and occasionally top off the distilled water if you want them to last. I had one of these fillers years ago, but lost it in many moves. I had been using a turkey baster to add the water for my vehicles and lawn mower. Now it's so much easier once again and a very good price as well.

I bought this product in May of 2025. It worked pretty well until the o-ring at the tip of the nozzle came apart. It lasted less than 3 months. Now the spring loaded mechanism in the nozzle won’t stay in place. It was apparently held together by the o-ring. What size o-ring do I need to replace the original? A #6 O-ring (7/16 inch exterior diameter by 5/16 inch interior diameter) fits the end of the spout and will hold the spring loaded mechanism in place. The O-ring costs 99 cents at Ace Hardware. It’s probably best to rinse the O-ring off after each use since it’s submerged in the lead acid battery liquid when filling the batteries.

So far looks and works fine, I'll respond after a year.

Very happy with this. Worth every dollar

Works great, usefull on our boat with six golf cart batteries in the house bank.

Exactly what we were looking for. This is the best way to top up batteries.

Great way to fill batteries safely, works great

great filler at the right price