Manual

27 | P a g e
Float
A Float cycle follows after the Absorb cycle is completed; Float is displayed on the screen. Battery vol-
tage is held at the float voltage set point, float time can be changed by the user.
Equalize
Equalization function has to be enabled by the user, refer to page 25. The intent of an equalization charge
is to bring all battery cells to an equal voltage by a deliberate overcharge. The goal is to return each bat-
tery cell to its optimum condition through a series of voltage controlled chemical reactions inside the bat-
teries.
Adjusting Absorb, Equalize and Float Voltages
Setting the Classic up through the wizard will set Absorb, Float and EQ to the factory default set voltage
to the specified battery type. (E.g. Flooded Lead, Gel...) These voltages are fully adjustable, just follow
the steps below.
 Press Main Menu
 Scroll to the left until Charge is highlighted and push the Enter button
 Highlight Volts and press the Enter button
 Use left and right arrows keys to highlight the set point voltage to adjust
 Use up and down arrow keys to lower or raise the voltage
 Press the Enter button to save the new voltages.
Battery Size and Chemistry
The Classic supports a variety of battery chemistries including; Flooded lead acid, sealed – AGM, gel cell
and Nickel Cadmium. These different types of batteries have different charging parameters. These
parameters are crucial for long- time battery life. Go through the WIZARD to select the battery type of
your system. If you replace the batteries for a different type make sure you change the type on the
WIZARD. That is the only place where the battery type can be changed.
Battery Temperature Compensation
The Classic comes with a battery temperature sensor (BTS). This sensor raises or lowers charge voltage
based on temperature. Connect BTS to the BATT TEMP jack. (Refer to fig 1.7B and 1.9) Battery
temperature menu appears as T-Comp in the BATTERY MENU. In this menu you can change the voltage
compensation as needed. If the BTS is disconnected or shorted the Classic will automatically use the
default charge voltages non-compensated.
Calibrating Battery and PV Voltage
To calibrate the Classic battery and PV voltage reading, you will need a Volt meter to check the actual
battery bank voltage or input PV voltage. Using the volt meter measure the voltage on the DC terminal
connector of the Classic (refer to Figure 2.4) compare this reading to the reading on the Status screen in
the Classic,(press Status if not in this screen) to adjust the reading of the Classic to the one in the volt
meter follow these steps:
 Press Main Menu, scroll to TWEAKS and press Enter
 Highlight VBatt and use the up and down arrow keys to match both of the readings
 Press the Enter button to save