Votronic Solar Charge Controller SR 550 Duo Dig. - 1626

Votronic SR 550 Duo Dig Charge Controller up to 550 W

Effective battery charging for motorhomes, caravans, boats and self-sufficient solar systems! VOTRONIC solar regulators are the link between the solar module and the battery, operate fully automatically and ensure optimal battery charging without overcharging.

Features at a glance:

• Main charging output I: Automatic charging of the leisure battery
• Auxiliary charging output II: Recharging and trickle charging of the starter battery
• Overcharge protection
• Gassing control
• Reverse current blocking
• On-board power filter
• Integrated temperature compensation
• For 12V applications
• Reverse polarity protection
• Suitable for all battery types

A solar system, correctly dimensioned, makes motorhomes, caravans or boats self-sufficient and consists of three components: solar module, solar charge controller and battery.

During the day, power consumption is immediately recharged, and at night, reverse discharge of the battery is prevented. The devices are characterized by high operational reliability. High-quality charging technology in conjunction with intelligent microprocessor control ensures precise adherence to charging voltages, currents and times. The main charging output with IU1oU2 charging characteristic can be optimally set for acid/wet batteries, gel or AGM/fleece batteries.
With the temperature sensor (recommended accessory) for battery temperature compensation, the charging voltage is automatically increased at low temperatures (winter operation), and the weakened battery is charged better and faster. At summer temperatures, the charging voltage is lowered, thereby reducing the stress (gassing) on the battery or increasing the lifespan of sealed (e.g. gel) batteries. The second charging output has reduced voltage and current and serves as a support charge and trickle charge for the vehicle's starter battery during long periods of inactivity.

Note: The classic functionality of PWM regulators is increasingly less compatible with the sensitive battery management systems of modern LiFePO4 batteries. Therefore, this characteristic curve is omitted in the new SR charge controllers, and we strongly recommend the use of MPP regulators for charging lithium batteries.

Documents & Downloads

• Datasheet