Flow-Rite BG-U36V-1A Pro-Fill Battery Watering System for 6x 6V Batteries, 2.7" Cell Spacing

Flow-Rite BG-U36V-1A Pro-Fill Battery Watering System for 6x 6V Batteries, 2.7" Cell Spacing

The Flow-Rite BG-U36V-1A Pro-Fill Battery Watering System is made for battery setups that use six 6V batteries with 2.7 inch cell spacing. This kit uses automatic shut-off valves that replace the existing vent caps and connect with tubing to help make battery watering faster and easier.

Once installed, the system connects to a hand pump through a quick coupling valve, with water flowing into each cell until the proper level is reached. The product details also state that the kit uses winged bayonet valves, automatic shut-off protection, flame arrestors, and clampless polypropylene tubing that resists battery acid and below-freezing temperatures.

Key Features

• Automatic Shut-Off Valves: Each valve independently closes when its cell reaches proper water level - eliminates over or under-watering
• Single-Point Filling: Fill all 18 cells simultaneously from one remote connection point without removing any caps
• Winged Bayonet Design: Tool-free hand installation with wings providing visual confirmation of proper valve seating
• Integrated Flame Arrestors: Built into each valve to prevent external sparks or flames from igniting hydrogen gas produced during charging
• Quick-Disconnect Coupler: Snap-on/snap-off connection for water supply - no threading or tools required
• Under 60-Second Fill Time: Complete all 18 cells in under a minute versus 8-12 minutes manually filling each cell
• Acid-Resistant Tubing: Clampless polypropylene construction resists battery acid and withstands below-freezing temperatures
• Pre-Spaced Manifolds: 6 manifolds with 2.7" spacing match standard 6V battery cell patterns for fast installation
• Golf Cart Optimized: Specifically engineered for golf cart battery configurations and access constraints
• Safety Enhancement: Eliminates acid exposure, toxic fume inhalation, and risk of spills during filling
• Extended Battery Life: Proper water levels every time maximizes battery performance and lifespan
• Made in USA: Manufactured by Flow-Rite Controls in Byron Center, Michigan
• 3-Year Limited Warranty: Manufacturer warranty covers defects in materials and workmanship

Ideal Uses

• Routine watering of compatible 36V battery systems
• Battery maintenance for six 6V battery setups
• Golf cart battery watering applications
• Replacing a matching Pro-Fill watering system

Ideal For

• Golf cart owners with compatible battery systems
• Battery service technicians
• Maintenance shops
• Fleet operators servicing deep-cycle batteries

Applications

• Flow-Rite BG-U36V-1A
• Pro-Fill battery watering system
• 6x 6V battery configurations
• 2.7 inch cell spacing setups
• E-Z-GO TXT 36V battery layouts

Product Specs

• Brand: Flow-Rite
• Part Number: BG-U36V-1A
• Product Type: Battery Watering System
• System Voltage: 36V
• Battery Configuration: 6x 6V batteries
• Cell Spacing: 2.7 inches
• Valve Type: Automatic shut-off valves
• Valve Style: Winged bayonet valves
• Tubing Material: Clampless polypropylene tubing
• Installation Note: Hand pump sold separately

What's Included

• 18 Pro-Fill valves (winged bayonet)
• 6 Manifolds (2.7" spacing, one per 6V battery)
• 7 feet polypropylene tubing (cut to fit)
• 1 Quick-disconnect coupler with dust cover
• 9 Red end caps
• Complete installation instructions
• 3-Year limited warranty

CRITICAL: New Battery Break-In Period

If installing on brand new batteries, you MUST wait at least 4 complete charge cycles before adding any water through this system.

New batteries require an initial break-in period where the plates activate and electrolyte levels stabilize. Installing and using the Pro-Fill system immediately on new batteries can result in improper water levels during this critical formation period, potentially damaging the batteries and voiding warranties. After 4 charge cycles, the batteries are ready for normal Pro-Fill operation.

Critical: Water Type Requirements

ALWAYS use distilled or deionized water when refilling your batteries. Tap water contains minerals (calcium, magnesium, iron) that will coat the battery plates and fill pores, preventing proper contact with the electrolyte solution. This mineral buildup causes:

• Reduced battery capacity and runtime
• Shortened battery lifespan
• Increased internal resistance and heat
• Permanent damage not covered by warranty

Distilled water costs approximately $1-2 per gallon at grocery stores and is essential for maximizing your battery investment. Using tap water will void most battery warranties.