The top-selling battery watering gun globally! Every battery room needs this indispensable tool. Just attach it to a standard water hose or a Deionizer, insert the tip into the cell, and squeeze the ergonomic handle. The mechanism automatically stops at the ideal electrolyte level. The dependable Philadelphia Scientific Battery Watering Gun accelerates battery watering, enhances filling precision, and boosts operator safety. It also saves money, reducing labor costs up to $150 annually per 18-cell battery compared to manual watering. It’s no surprise it’s been the world’s favorite battery maintenance tool since 1983.