Battery Watering Made Simple

Flow-Rite Complete Battery Watering Kits

Fill every cell to the perfect level from one connection point. Match your battery bank's voltage, count, and cell spacing to the exact kit below.

Free shipping on orders $99+ Interactive selector
Single-Point FillWater all cells from one connection—no pulling caps.
Auto Shut-OffEach valve stops at the correct electrolyte level.
Hand Pump IncludedEvery kit ships ready to fill—no extra supply gear.
Tool-Free InstallWinged bayonet valves push and quarter-turn into place.

Find the Right Product

Answer a few quick questions to find the kit that fits your exact battery bank.

1. What's your battery voltage?
2. How many batteries in your bank?
3. What's your cell spacing / battery brand?
4. Do you want a level indicator?

All Options

All kits below include a hand pump and automatic shut-off valves. The right choice depends on your battery voltage, cell count, and cell spacing—use the selector to narrow it down.

Flow-Rite BG-C48V-11-EA-WS Distributor Snake Kit Battery Watering System With Hand Pump & Eagle Eye

Flow-Rite BG-C48V-11-EA-WS Distributor Snake Kit Battery Watering System With Hand Pump & Eagle Eye

Product Code: BG-C48V-11-EA-WS
Best for: Club Car with Trojan 8V, wants LED indicator
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Flow-Rite BG-C48V-11-WS Distributor Snake Kit Battery Watering System With Hand Pump

Flow-Rite BG-C48V-11-WS Distributor Snake Kit Battery Watering System With Hand Pump

Product Code: BG-C48V-11-WS
Best for: Club Car with Trojan 8V (2.3" spacing)
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Flow-Rite BG-C48V-21-EA-WS Pro-Fill Distributor Snake Kit Battery Watering System with Hand Pump and Eagle Eye for 48V Golf Carts

Flow-Rite BG-C48V-21-EA-WS Pro-Fill Distributor Snake Kit Battery Watering System with Hand Pump and Eagle Eye for 48V Golf Carts

Product Code: BG-C48V-21-EA-WS
Best for: Club Car with Crown/US Battery 8V, LED indicator
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Flow-Rite BG-C48V-21-WS Distributor Snake Kit Battery Watering System With Hand Pump

Flow-Rite BG-C48V-21-WS Distributor Snake Kit Battery Watering System With Hand Pump

Product Code: BG-C48V-21-WS
Best for: Club Car with Crown/US Battery 8V (2.5")
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Flow-Rite BG-U12V-4A-WS Pro-Fill 12V Battery Watering System, Non-Standard Spacing, With Hand Pump

Flow-Rite BG-U12V-4A-WS Pro-Fill 12V Battery Watering System, Non-Standard Spacing, With Hand Pump

Product Code: BG-U12V-4G-WS
Best for: Single 12V battery with non-standard spacing
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Flow-Rite BG-U24V-1G-WS Pro-Fill Battery Watering System for (4) 6V Batteries, 2.7in Cell Spacing, with Hand Pump

Flow-Rite BG-U24V-1G-WS Pro-Fill Battery Watering System for (4) 6V Batteries, 2.7in Cell Spacing, with Hand Pump

Product Code: BG-U24V-1G-WS
Best for: Four 6V batteries at 2.7" spacing
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Flow-Rite MP-2000 Qwik-Fill 12V Double RV Battery Watering System -- Group 24-31

Flow-Rite MP-2000 Qwik-Fill 12V Double RV Battery Watering System -- Group 24-31

Product Code: 55-8754
Best for: Two 12V RV batteries, group 24/27/31
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Flow-Rite Pro-Fill BG-U36V-1G-WS Battery Watering System for 6x 6V Batteries, 2.7" Cell Spacing, with Hand Pump

Flow-Rite Pro-Fill BG-U36V-1G-WS Battery Watering System for 6x 6V Batteries, 2.7" Cell Spacing, with Hand Pump

Product Code: BG-U36V-1G-WS
Best for: Six 6V batteries at 2.7" spacing
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Flow-Rite Pro-Fill BG-U48V-1G-WS Battery Watering System for (8) 6V Batteries, 2.7" Cell Spacing, With Hand Pump

Flow-Rite Pro-Fill BG-U48V-1G-WS Battery Watering System for (8) 6V Batteries, 2.7" Cell Spacing, With Hand Pump

Product Code: BG-U48V-1G-WS
Best for: Eight 6V batteries at 2.7" spacing
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Which One Should You Buy?

Find the row that matches your setup — that's your kit.

Your situationOur pickWhy
Club Car Precedent/DS with Trojan 8V batteries, want a level indicator Flow-Rite BG-C48V-11-EA-WS Distributor Snake Kit Battery Watering System With Hand Pump & Eagle EyeBG-C48V-11-EA-WS 2.3" Trojan-spaced tubing plus Eagle Eye LED and hand pump.
Club Car with Trojan 8V batteries, no indicator needed Flow-Rite BG-C48V-11-WS Distributor Snake Kit Battery Watering System With Hand PumpBG-C48V-11-WS 2.3" Trojan-spaced snake kit with hand pump and flow indicator.
Club Car with Crown or US Battery 8V, want indicator Flow-Rite BG-C48V-21-EA-WS Pro-Fill Distributor Snake Kit Battery Watering System with Hand Pump and Eagle Eye for 48V Golf CartsBG-C48V-21-EA-WS 2.5" spacing kit with Eagle Eye sensor and hand pump.
Club Car with Crown/US Battery 8V, no indicator Flow-Rite BG-C48V-21-WS Distributor Snake Kit Battery Watering System With Hand PumpBG-C48V-21-WS 2.5" spaced snake kit with hand pump for six 8V.
Single 12V battery with irregular or tight spacing Flow-Rite BG-U12V-4A-WS Pro-Fill 12V Battery Watering System, Non-Standard Spacing, With Hand PumpBG-U12V-4G-WS 360° swivel tees fit any non-standard 12V layout.
Two 12V RV batteries, group 24/27/31 Flow-Rite MP-2000 Qwik-Fill 12V Double RV Battery Watering System -- Group 24-3155-8754 MP-2000 single-point fill for two standard RV batteries.
Four 6V batteries at 2.7" cell spacing Flow-Rite BG-U24V-1G-WS Pro-Fill Battery Watering System for (4) 6V Batteries, 2.7in Cell Spacing, with Hand PumpBG-U24V-1G-WS Pro-Fill kit links all four 6V batteries, hand pump included.
Eight 6V batteries at 2.7" cell spacing Flow-Rite Pro-Fill BG-U48V-1G-WS Battery Watering System for (8) 6V Batteries, 2.7" Cell Spacing, With Hand PumpBG-U48V-1G-WS Single-point fill for eight 6V, all 24 cells.

How These Options Differ

Start with your battery bank. The C48V kits are golf-cart specific for Club Car Precedent and DS (2007 and older) with six 8V batteries—choose BG-C48V-11 kits for Trojan (2.3" spacing) and BG-C48V-21 kits for Crown or US Battery (2.5" spacing). Want a level indicator? Pick the -EA versions, which add the Eagle Eye green-LED sensor. For 6V bank setups, the U-series matches by count at 2.7" spacing: BG-U24V-1G for four 6V, BG-U36V-1G for six 6V, and BG-U48V-1G for eight 6V. RV and single-battery owners have two paths: BG-U12V-4A uses 360° swivel tees for a single 12V battery with non-standard or tight spacing, while the MP-2000 (55-8754) is a fixed single-point kit for two 12V group 24/27/31 RV batteries. Confirm voltage, count, and spacing before ordering—the molded tubing is layout-specific.

Frequently Asked Questions

How do I know my cell spacing?

Measure center-to-center between two adjacent vent caps. Trojan 8V batteries are typically 2.3", Crown and US Battery 8V are 2.5", and most 6V batteries are 2.7". The molded tubing is layout-specific, so confirm before ordering.

Is a hand pump included?

Yes. Every kit on this page ships with a hand pump, so it's a plug-and-play solution—no separate water supply equipment required to start filling.

What does the Eagle Eye sensor add?

The Eagle Eye (found on -EA kits) is a level sensor with a green LED that confirms optimal water level at a glance. Kits without it rely on the automatic shut-off valves and the pump's flow indicator.

Do I need tools to install?

No. The shrouded winged bayonet valves replace your existing vent caps with a simple push and quarter-turn, giving visual confirmation of proper seating on each cell.