|Blue Sky Energy |
Solar Boost 3048DL
MPPT Charge Controller
(Also see Other Options )
Solar Boost 3048DL is a24/48 volt photovoltaic (PV) charge controller capable of delivering up to 30 amps of output current. Patented* Maximum Power Point Tracking (MPPT) technology allows Solar Boost 50 & 3048 to increase charge current up to 30% or more compared to conven- tional charge controllers. Controllers without MPPT technology simply can't deliver the charge current provided by Solar Boost 3048. Don't waste money by throwing PV power away! Get the power you paid for with the Solar Boost 3048.
Solar Boost 3048 does much more than increase charge current. It offers an advanced fully automatic three stage charge control system to ensure the battery is properly and fully charged, resulting in enhanced battery performance with less battery maintenance. Reliable high efficiency power conversion is achieved using the latest generation power MOSFET transistors, with output power delivered via a series pass Pulse Width Modulation (PWM) control scheme. An electronic current limit feature prevents output current from exceeding 30 amps. Output current limit eliminates worry about overload or nuisance fuse blow when PV power production is unexpectedly high. An equalize function is also included to periodically condition liquid electrolyte lead-acid batteries. An optional user friendly digital display is available to monitor PV charge performance. The display shows battery voltage, solar panel current, output charge current, charge mode and state of charge. It can be provided in the controller as pictured above, as a remote panel installed up to 300 feet away, or both. Optional temperature compensation of charge voltage is also available for both lead-acid and NiCd batteries to further improve charge control and battery performance.
How Does Solar Boost 3048 Increase Charge Current?
A solar module is a constant current device. As shown on a typical voltage-current curve, current remains rela- tively constant over a wide range of voltage. A typical 75 watt module delivers 4.45 amps @ 17 volts. Conventional controllers connect the module directly to the battery when the battery is discharged. When this 75 watt module is connected to a battery charging at 12 volts, the module still provides about the same current. But, because module output voltage is now held lower by the battery, it can only deliver 53 watts of power. This wastes a whopping 22 watts or nearly 30% of the available power!
Solar Boost's patented MPPT technology operates in a very different fashion. Under these conditions the Solar Boost calculates the maximum p