Photovoltaics: Charge Controllers

The HPV-22 and HPV-30 are manufactured by Heliotrope PV, and distributed by JED Engineering, Inc.

 

HPV-22 Solar Charge Controller

DESCRIPTION
The HPV-22 & HPV-22B charge controllers will deliver more charging amperage to your batteries (like the Solar Boost type controllers) and add in the proven, all important Tapering charge strategy. This will actually get you to full charge faster and friendlier than the older "ON/OFF" controllers do.

By pulling the included 25' temperature sensor cable from the controller to the battery , you can also utilize Battery Temperature Compensation which will adjust the finish charge set point up or down depending on your batteries' temperature. This prevents plate sulfation when your batteries are cold. When they are hot, it prevents unnecessary "boiling" of the electrolyte which drives water out of your batteries. Others make this important feature an "option" and charge you extra for their temperature compensation sensors. Ours comes standard with the controller and is included in our price!

 

The HPV-22 has the following standard features:


• 22 Amp Charging Capabilities
(Regulates up to 400 watts of solar input)

• Current Limit On Output
(Eliminates nuisance fuse blowing)

• Selectable Charge Set Point
(via a potentiometer on the circit board)

• Tapering Charge
(Tapers off the charging amperage after reaching the set point for a full, gentle finish charge)

• Battery Temperature Compensation
(Automatically adjusts charge set point with respect to battery temperature to help prevent excess water loss in warmer temperatures and/or plate sulfation build-up in cooler temperatrures)

• Liquid Crystal Display
(Gives Digital readout of battery voltage, array input amperage, and boosted charging amperage)

• Light Emitting Diodes
(Gives "at-a-glance" system status: "Charging", "Charged", and "MPPT" active)

 

HPV-30 Solar Charge Controller

DESCRIPTION

The HPV-30D charge controller is the culmination of many years of Research and Development. Its feature set is the result of our experiences of living and working out of our RV and seeing what was and what wasn't working with other controllers. (see "Test Rigs") Its ease of installation comes from working with the "guys on the line" at our RV manufacturing accounts as well as from our own years of aftermarket installations.

There is so much automatically going on "under the hood" of the HPV-30D protecting your RV and your Batteries that it is hard to describe it all in text. It is something that you will just have to experience. Let's just say that I seriously doubt that you will find any other solar charge controller that has all of the RV specific features that are built in to the HPV-30D.

 

The HPV-30D has the following standard features:


• 30 Amp Charging Capabilities
(Regulates up to 500 watts of solar input)

• Charges both the House and Engine Battery Banks Simultaneously
(Up to 30 amps heads to the House Battery while up to 5 amps head to the Engine Battery!)

• Proven 3-Stage Charging Method
('Bulk', 'Taper', 'Float' charging assures complete and gentle charging)

• External Voltage Sensing
(Measures actual battery voltage at the battery through an isolated pair of wires for the most accurate and quickest charging ... Other controllers measure battery voltage through their current carrying charging wires. That distorts the actual battery voltage the controller uses to terminate charging which causes the controller to taper off the charging too soon.)

• Current Limit On Output
(Eliminates nuisance fuse blowing)

• Voltage Limit On Output
(Eliminates Over Voltage shut down of Inverters and protects sensitive RV Electronics)

• Battery Temperature Compensation
(Automatically adjusts charge set point with respect to battery temperature to help prevent excess water loss in warmer temperatures and/or plate sulfation build-up in cooler temperatures)

• Selectable Charge Set Points
(via potentiometers on the circit board)

• Light Emitting Diodes
(Gives "at-a-glance" system status: "Bulk", "Taper", and "Float")