|October 25, 2013|
Solar Battery Chargers and PV System Controllers
|One of the
problems with solar power is that the
output of the solar panel is variable.
These solar charge controllers are
designed to extract the maximum amount
of power available from the solar
panels and deposit it in the battery.
Solar PV charge controllers take the
uncertain voltage from a solar panel
and condition it to safely charge lead
acid batteries. These solar PV charge
controllers energy harvesting, and a
three-stage charging method, bulk,
absorption, and float (maintenance)
charge, but due to the nature of solar
panels these are different in nature
than a typical AC driven charger. They
pulse charge the battery. During the
pulse the solar panel is virtually
short-circuited to extract the maximum
power from the panel and also to allow
the panel to work more efficiently.
These solar charge controllers also
protect your panels from discharging
through the batteries after the sun
goes down. Solar charge controllers are
necessary to protect your PV battery
The SBC-6112 is the less expensive version of the solar PV charge controllers. It regulates the power from the solar panels and controls the charge of the batteries. It also cuts out the batteries from the load when the lead acid batteries are depleted to prevent damage to the battery. It has an LED bar readout to show the status of the solar charging system and batteries. The manual for the SBC-6112 solar PV charge controller can be read by clicking on the link below.
The SBC-7112 solar PV charge controller has the same functionality as the SBC6112, and also has several new features. It has a liquid crystal (LCD) display, which gives allows the user to display system information, such as the battery voltage, PV panel voltage, input current, total amp-hours during the day, and total amp hours for one or two days previous. It also allows the fill and float charging voltages for the battery charger to be changed by a series of dip-switch settings. The manual for the SBC-7112 solar PV charge regulator can also be read by clicking on the link below.
Both solar PV charge controllers have the capability of temperature compensation of the battery charging algorithm with a thermistor that can be put on the battery.
These solar charge controllers also have system functions, for example dusk detection which can be used to turn on the load connected to the DC output at dusk, and turn off the load to prevent the batteries from being over-dischsarged. They have very low quiescent current draw, which means that when the solar panels are not producing enough power to charge, and when the battery current is not called for, the system can sleep without draining the batteries.
Read the Complete Solar Photovoltaic Control Charger SBC-6112 Manual, Click Here
Read the Complete Solar Photovoltaic Control Charger SBC-7112 Manual, Click Here