Collection: Water Deionizers

Water Deionizers remove dissolved minerals from tap water so you can fill batteries with low-conductivity water that protects plates and separators. Using deionized water helps prevent scaling, mossing, and dendrite growth—improving performance and extending battery life.

We carry deionizer systems from BWT, Philadelphia Scientific, and Flow-Rite—proven solutions for clean battery water in shops, warehouses, and service trucks.

Key features:

• Removes dissolved minerals (calcium, magnesium, metals) that degrade batteries
• Improves battery life & performance with consistent, low-conductivity water
• Easy & economical—cartridge/tank options; color-change resin shows when to replace
• Simple hookups—garden-hose or quick-connect fittings for shop or mobile use

Not sure which capacity you need? Our Charlotte parts team can size a system for your water quality and usage.