Owner's Guide

Charge Stages
The charge stages displayed on the SCP are described in Table 13. The charge states
are displayed under State on the Meters screen.
Text Description
Bulk
Batteries are charging at the maximum current available from the charge controller.
If the charge controller shuts down because of low input PV voltage, then charging will resume in bulk mode. This
means the charge controller starts in bulk at the beginning of every day, regardless of the battery voltage. If the
batteries are fully charged, the bulk/ absorption cycle finishes after a short period and the charge controller
transitions to float/ no float (depending on charge cycle configuration).
Absorb
After transitioning from bulk mode, the charge controller holds the battery voltage at the absorption voltage setting
and the charge current gradually declines as the battery is charged. The charge controller stops absorption
charging when one of two conditions are met, as described in Absorption Stage on page 23
Float
Battery voltage is held at the float voltage setting. When the battery voltage drops below the ReCharge Volts
setting for a cumulative period of one minute, a new bulk charge cycle is triggered.
No Float
The charge controller does not output any power during this stage. When the battery voltage drops below the
ReCharge Volts setting for a cumulative period of one minute, a new bulk cycle is triggered.
Equalize
A deliberate overcharge designed to return each battery cell to optimum condition by reducing sulfation and
stratification in the battery. An equalization charge lasts one hour.
Not
Charging
No charging is occurring because the input power from the PV array has fallen below the minimum PV array
operating voltage (as specified in Electrical Specifications on page 64).
Table 13Charge stages
Conext MPPT 80 and Conext MPPT 100 Owner’s Guide Operation
46 This document is for use by qualified personnel 990-6214