Battery Watering Systems from Flow-Rite

Periodic battery service is essential to the health of flooded lead-acid batteries.  Adding water to the electrolyte is the primary job in a typical monthly routine, a task that is tedious and therefore all too often procrastinated.  A single point watering system turns this troublesome chore into a breeze!  A special valve fits into the filler neck of each cell, replacing the original battery cap.  The Millennium Plus SPW system works by replacing the battery's existing vent caps with patented valves that are interconnected with tubing, allowing the user to fill all cells of the battery from a single remote location. Each valve independently shuts off water flow to the cell when the proper electrolyte level is reached, allowing the batteries to be filled perfectly every time without even having to look at the batteries.

This results in having each cell filled to the optimum level, with no chance of battery contamination and drastically reduced hazard potential to YOU, since you don't need to open a single cell cap!  No funnels or flashlights, no spill or mess, no back strain from bending over your batteries, and no direct exposure to open cells and electrolyte.  Each Millennium Plus valve has a small cap to allow insertion of a special battery hydrometer so you can still monitor specific gravity without the need to remove a valve.  The new built-in level indicator tells you at a glance if cell electrolyte is low. 

How does it all work?   Starting with a fully charged battery, simply connect the small Handv Pump to the system, drop the hose into a container of distilled water and squeeze to pump!  When all of the cells are filled to the perfect level, all of the valves will close and no more water can be pumped.  Disconnect the pump and you're finished! It really is that easy.

Flow-Rite products are engineered for all the major battery brands, so the fit is perfect, the installation is trouble-free, and the electrolyte is maintained exactly to the battery manufacturer's specification.  A single point watering system is more than just a convenience.  Maintaining the electrolyte at the proper level is essential to getting the longest life from your battery investment, and making that chore into a simple and easy task means that you are more likely to do it on a regular schedule as you should.  Flow-Rite systems make battery watering fast, easy and safe.

The Flow-Rite Millennium Plus valve for HUP Solar One batteries has all of the great features that have made Flow-Rite an industry leader in battery watering systems, PLUS their exclusive visual indicator. You can confirm that no battery cells are below the minimum electrolyte level with just a glance. This adds an extra measure of assurrance and peace of mind that your expensive battery set is being well cared for. Batteries stay cleaner both inside and out with the Millennium Plus system. There is never a need to open a cell during routine maintenance, reducing the chance of cell contamination and protecting the user from hazardous exposure to electrolyte. These valves greatly reduce misting while the battery is gassing, thus reducing corrosion and mess on terminals and cell tops. Treat you batteries to a Flow-Rite SPW system! They will reward you with longer life and reduced maintenance time. YES! We use the Millennium SPW system on our Hup batteries here at Voodoo Solar.  Photos below.

Millennium Plus SPW for HUP Batteries

12 volt, 6 Cell Kit  (includes Handy Pump)	$175
24 volt, 12 Cell Kit  (includes Handy Pump)	$275
48 volt, 24 Cell Kit  (includes Handy Pump)	$475
Handy Pump squeeze-type hand pump (required)	$25
Battery Hydrometer *	$25
INSTALLATION VIDEO (15Mb, not for dial-up) WARRANTY MILLENNIUM SPW BROCHURE (PDF) FLOW-RITE HYDROMETER

Adding SPW (single-point watering) to our Hup Solar One batteries here at Voodoo Solar was an easy job!  The only difficult part was doing a thorough cleanup of the batteries and connections.  Since these batteries have been in service for 5 years, it was a good opportunity to remove and clean the cell-interconnect bars and wire brush all the terminals.  After everything was cleaned, installing the Flow-Rite SPW was a snap, and took less than 30 minutes.  Here are some photos to show how the installation looks on a 24-volt Solar One battery set.

Note the fill connector at the end of the hose at lower right.  This connector snaps into a mating connector that is attached to the pump unit (not shown).  Simply attach the pump and you're ready to water your batteries without hazard or mess!

Hup Solar One batteries come equipped with a green "flip-top" cap that is easily removed to allow installation of the Flow-Rite valve unit on each cell.  The valve ensures that the water is filled to the precise factory specification.

The red cap comes with the SPW kit and simply closes the unused hose connectors.  The small blue cap allows you to insert the hose of a Flow-Rite hydrometer so you can take specific gravity measurements without removing the filler valve.  Any hydrometer could be used if equipped with a filler hose small enough to fit in the small hole.


Flow-Rite single point watering systems are available for most other battery brands at similar prices.  Contact Voodoo Solar to get the right system to fit your batteries!