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Battery FAQs

When is the best time to fill my batteries?

The best time to water is after the battery has been fully charged. Since many people equalize the battery once a week and watering needs to be done once a week, it is common to water after the equalized charge.

How do I know when my battery needs water?

Many people set up battery watering on a schedule. However, to save time and money, we recommend our Eagle Eye Elite Level Sensor or Advanced Battery Steward Tracker. With the Eagle Eye Elite Level Sensor, a red or green light will tell you if your battery needs water. The Advanced Battery Steward Tracker also has the red and green light, but it monitors, sends and records the tracking data, which you can access via your phone or the internet. Both the Eagle Eye Elite Level Sensor and Advanced Battery Steward take the guesswork out of when to water your batteries, saving time and money.

How often should I fill my batteries?

Watering intervals are dependent on the climate, charging methods, application, and age of batteries. Generally, in heavy use applications, batteries need to be watered once a week; in light applications, the batteries may only need water once a month. A Flow-Rite Eagle Eye Elite and Eagle Eye Essential Level Sensor is a great way to help you determine if it is time to water your batteries. If the battery has completed its charge cycle and the indicator light is red, the battery needs water; if the light is green, there is no need to water yet.

Can I leave the water supply connected to my batteries at all times?

No. After a watering cycle is completed the water supply should be disconnected from the valves. The system is designed to drain the water that is left in the tubing. If a water supply is not disconnected, the system will not be able to drain the tubing and reset properly.

What temperatures range will a Flow-Rite valve work in?

Flow-Rite has designed our systems to work in all applications. Our watering systems are designed to work in a freezer in Juno, Alaska and glass factories in San Antonio, Texas and everywhere in between. This means you can water your batteries anywhere between above freezing (32º) to 150º Fahrenheit and from 1º – 65.5º Celsius.

What is so special about your tubing? What is unique about your tubing?

First, our tubing does not use clamp rings which makes installation fast and easy. Simply cut the tubing and slide it on to the swivel tee barb. A clamp ring is not needed to hold it in place. This means no extra tools and no leaks.

Second, our tubing does not contain plasticizers which are the component in clear tubing that make it flexible. A problem arises in battery environments when the plasticizers leak out of clear tubing which causes the tubing to turn yellow while also making it brittle and leaky. Clear tubing cannot last as long as a battery. Flow-Rite’s tubing will last longer than the battery without any degradation.  

What is a flame arrested valve and when/why would I need one?

Our standard Millennium flame-arrested valve includes both an internal and external flame arrestor. The external flame arrestor is designed to protect against an outside spark from entering the cell via the watering system and has been tested to SAE J1495. The internal flame arrestor is designed to prevent a spark from inside the battery from igniting other cells via the watering system.

Does your system work in fast charge applications?

Yes, Flow-Rite is the premier supplier of watering systems to the fast charge industry. Its debris-resistant design coupled with high-grade, reinforced materials make it ideal for environments where fast charge applications require a high-performance valve.

Which valve do you recommend for opportunity charging?

We recommend the Maverick valve for opportunity  charging.  As battery cells break down due to overheating, they often produce particulates that clog conventional valves. The Maverick Valve is engineered to function seamlessly no matter the viscosity of the internal fluid.

Check our compatibility chart for further details.

Please contact customer support for batteries containing element protectors.

How does the Millennium or Maverick valve work?

Millennium EVO and Maverick valve operation features a breakthrough patented technology that sets a new standard for reliability and versatility with single point watering. Without levers, hinges, or pivot action, Millennium EVO and Maverick valves can operate independently of refill water supply pressure to accurately control cell electrolyte levels.  Through Fluidic Displacer Valve Technology, it uses a dual, balanced valve design that allows the displacement force to act directly through the center of the valve without any mechanical leverage. At the same time it is very insensitive to variations in the water supply pressure used, making it a true multi-pressure valve. Fluidic Displacer Technology allows the Millennium EVO and Maverick valves to maintain the low profile and easy tube routing features found in Flow-Rite’s previous PowerStream and Snap-Fill systems.

How many cells can I fill at once?

With the Millennium Evo and Maverick system, you can fill up to 30 valves on one watering circuit. For Pro-Fill valves you can fill up to 24 valves in a single circuit.

 

How long does it take to install a Millennium or Maverick SPW Kit?

Typical installation will take an inexperienced person 1 minute or less per cell on average.

How long does it take to install a Pro-Fill Kit?

Typical installation will take an inexperienced person 1 minute or less per cell on average.

What are the operating specifications for the Millennium or Maverick Valve?

When using our regulated hose supply, we recommend 40 to 100 PSI supplied to the hose. This will provide 3 to 35 PSI (static pressure; no flow) to our watering system. Also, this should supply 2 to 5 gallons per minute for flow rate to the system or through a Flow-Rite purger. A purger provides a consistent flow of water.

Our watering carts, portable pumps, and mini-pumps are engineered to work with our system. They supply 2 to 5 gallons per minute flow rate through a purger as well.

What are the operating specifications for the Pro-Fill valve?

When using our regulated hose supply, we recommend 40 to 100 PSI supplied to the hose. This will provide 3 to 35 PSI (static pressure; no flow) to our watering system. Also, this should supply 2 to 5 gallons per minute for flow rate to the system or through a Flow-Rite purger. A purger provides a consistent flow of water.

Our watering carts, portable pumps, and mini-pumps are engineered to work with our system. They supply 2 to 5 gallons per minute flow rate through a purger as well.

Can I use the Millennium or Maverick system in a cold storage/freezer application?

Yes. The Millennium valve, the Maverick valve, and the Pro-Fill valve systems are designed to drain the tubing shortly after a filling cycle. This means the water does not stay in the tubing and will not freeze and damage the system. It is recommended that the coupler be stored on top of the battery so it can drain as well.

Do I need to remove the Pro-Fill system from my batteries in the winter?

No. The Pro-Fill system is designed to withstand the harshest of winters and can be left on the battery all winter long. It is always recommended to fully charge your batteries before putting them in storage. Follow battery manufacturers winterization recommendations.

How many Deep Cycle batteries can I fill at one time?

You can fill a total of four 12-volt batteries, or a total of eight 6-volt batteries or a total of six 8-volt batteries or any other combination of batteries up to 24 cells at one time.