BZ Products MPPT250 > 250 Watt 25 Amp 12/24 Volt MPPT Charge Controller

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Manufacturer Part Number: MPPT250

The MPPT 250 is a fully automatic, current boosting, 25 amp solar control. The MPPT 250 incorporates an advanced microprocessor design that brings outstanding performance and many new features to the medium power systems. Standard features include digital volt and amp meter. A 15 amp low voltage disconnect. Battery temperature sensor. Auxiliary battery trickle charger. Solar inputs of up to 50 volts may be used to charge a 12 volt battery. Up to 30% current boost is possible. Ideal for campers, recreational vehicles and small cabin systems. Up to 250 watt solar input.

Features

Get Improved Performance From Your PV Modules and Batteries

• Current boosting
• Digital volt and amp meter
• 12volt operation
• 250 Watt
• 25 Amp charge current
• PWM float control
• fully automatic operation
• Easy installation
• Low voltage disconnect
• Five year warranty
• Auxiliary battery charger included
• Flush mount
• Battery temperature sensor standard

Specifications

Detailed Description

General

The model MPPT250 is a 25 amp high performance current boosting solar control. Through the use of advanced microprocessor control and high efficiency power converter, power wasted in older PWM style solar controls is converted into higher charge current. The MPPT250 allows for input voltage conversion. This increases the Maximum Power Point voltage and allows for higher boost current over wider operating conditions. The MPPT250 is designed to charge 12 volt batteries only.

A high accuracy digital volt and amp meter displays battery voltage and charge current. An auxiliary 100 ma 13.8 volt trickle charger is provided to keep the engine/generator start battery fully charged. A 15 amp capacity low voltage disconnect protects the battery from over discharge conditions. Proper battery charging is maintained over a wide temperature range with the battery temperature sensor. Battery float voltage is accurately regulated. Night time battery discharge is eliminated through the use of a high efficiency Scotkey diode. Maximum input power to the MPPT250 is 250 watts.

The float voltage of the MPPT250 is calibrated to 14.1 volts. When the battery voltage reaches 14.1 volts the red float LED turns on. At this point, charge current to the battery will gradually diminish to maintain the 14.1 float voltage. As soon as a load is turned on, maximum charge current is applied to the battery. Battery temperature compensation adjusts the float voltage to properly charge the battery over a wide temperature range. When the battery is warm the float voltage will drop and when the battery is cold the float voltage will rise. MPPT250 is well suited for flooded, deep cycle and gel type batteries.

A low voltage disconnect is used to protect the battery from excessive discharge by automatically turning off a load. The load is disconnected when the battery voltage is 12.0 volts or lower. When the batteries are recharged to 12.6 volts the low voltage disconnect reconnects the load. The yellow LED on the face of the MPPT250 is lit when the load is connected. Operation of the low voltage disconnect is fully automatic. Maximum low voltage disconnect load current is 15 amps.

A unique feature of the MPPT250 is the 100 ma 13.8 volt trickle charger. The purpose of the trickle charger is to maintain full charge on the engine/generator starter battery. The low charge current will keep engine start batteries fully charged without using water. Operation is fully automatic and transparent from other charging circuits.