Review on 🏌️ Golf Cart Battery Water Filler Bottle with Auto Shut Off - Deep Cycle Maintenance Made Easy by Josh Tadder

I recently installed a solar array for a fountain operation and am using 4-12v deep cycle batteries so I didn't want to spend a fortune on a battery cell refill system I figured this would be the solution and I can also use it for my car and lawnmower batteries. There were no instructions or any kind of manual which was disappointing. It's pretty simple, fill it with distilled water, insert the nozzle into the battery hole and depress the spring-loaded valve. It seems designed to fill up to the correct level and then stop. It fills up very slowly and I've found that it fills up faster after popping it in and out a few times. I found the design also made it difficult to access some of the cells due to gap issues and battery design. It seems to me that the device is hermetically sealed, so there is a vacuum inside the container. When I take it out of the cell opening, I can hear the air leveling off in the container. I might be better off using a squeeze pear filler or dollar store turkey bait. I like that it seals and keeps contaminants out of the electrolytic water. I will keep using it until it stops working.