Flow-Rite Regulated Battery Watering Hose -- 5 Ft
A gravity-and-pressure-fed hose supply solution that waters your battery bank accurately and quickly -- no pump required. Ideal for RV owners, fleet operators, and anyone maintaining flooded lead-acid batteries who wants a reliable, no-fuss fill without the cost of a full pump system.
The Flow-Rite BA-MS-320-05 is a regulated hose supply system designed to fill flooded lead-acid batteries to the correct electrolyte level every time. By incorporating a built-in pressure regulator directly into the supply line, it eliminates guesswork and prevents the overfilling that damages battery plates and shortens service life.
This 5-foot hose model offers a practical middle ground: faster and more consistent than manually pouring distilled water cell by cell, but without the investment of a fully automated pump-driven watering system. Connect it to a standard water source, attach the Fill-It valves on your battery cells, and let the regulated flow do the work.
Inline pressure regulation ensures each cell receives the correct water level -- no overfilling, no wasted water.
Works from a standard water supply connection -- lower cost than pump-operated systems while still delivering fast fill times.
Provides enough reach to service batteries in typical RV battery compartments and marine battery banks without stretching.
Designed to work with Flow-Rite single-point battery watering valves for a complete, closed watering system.
Flow-Rite single-point battery watering systems replace the individual vent caps on each cell of a flooded lead-acid battery with automatic fill valves. When you connect the regulated hose supply, water flows through the manifold to each cell. Each valve automatically shuts off when the electrolyte reaches the correct level -- no checking, no measuring, no mess.
The BA-MS-320-05 adds a pressure regulator to the supply hose itself, which is especially important when connecting to a municipal water supply or any source that may deliver pressure above what the valve manifold is rated for. This protects the valves and ensures even fill across all cells in the bank.
This system is intended for use with standard flooded (wet cell) lead-acid batteries -- the type commonly found powering RV house banks, golf carts, floor scrubbers, and industrial equipment. It is not intended for AGM, gel, or lithium batteries, which do not require water addition.
Flow-Rite offers a full range of single-point battery watering solutions. The regulated hose supply (BA-MS series) is the entry-level supply option -- a manual-connect hose that delivers regulated water flow. For larger battery banks or more frequent watering cycles, Flow-Rite also offers pump-operated systems (Pro-Fill series) that automate the fill process further. The BA-MS-320-05 is the 5-foot version; other hose lengths are available for different compartment configurations.
The regulated hose supply connects to the Fill-It valve manifold already installed on your battery bank. One end attaches to a standard water source; the other connects to the battery watering manifold quick-connect fitting. Open the water supply, allow the system to fill (the valves signal shut-off when complete), then disconnect. No electricity required.
The BA-MS-320-05 hose supply requires Flow-Rite Fill-It battery watering valves and a manifold assembly already installed on your batteries. If your batteries do not yet have Flow-Rite valves, you will need a complete battery watering kit sized for your specific battery model and bank configuration. Flow-Rite offers kits for 6V, 8V, and 12V flooded lead-acid batteries in golf cart, RV, and industrial profiles.