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.

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 investment.



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.

• Microcontroller based pulsed charging system and three-stage solar charging algorithm.
• Bulk, Absorption & Float Charge LED indications.
• 5 State LED Indications of battery levels.
• Electronic Overcharge Protection & back current blocking to PV panel.
• Over temperature Protection of PV Charge Controller's electronic circuit.
• Automatic dusk detect & On-Off operation at DC output.
• 25% 5 minute overload capability on charge
• 60% 5 minute overload on discharge
• Low voltage battery disconnect and reconnect at DC output.
• Temperature compensation option built in.
• Over-discharge protection at DC output.