Kemo M149N – 12V Solar Charge Controller for Lead Acid Batteries, 10A

Kemo M149N: solar charge controller for 12V lead-acid batteries

The Kemo M149N is a regulator to be connected between a photovoltaic panel and a 12 V lead-acid battery , to control charging and avoid overcharging the battery.

Accepts panels with open circuit voltages between 14 and 30 V DC . The maximum input current is 10 A ; currents up to 20 A are permitted for short periods only, not exceeding 5 minutes .

Charge control and LED indicators

Charging starts when the battery voltage drops below approximately 13.4 V and stops when it exceeds approximately 14.4 V. Two LED indicators indicate the charging and full battery status.

Main features

• For photovoltaic systems with 12 V lead-acid batteries.
• Charging control to avoid overcharging.
• Maximum input current 10 A.
• Up to 20 A for up to 5 minutes.
• Two LEDs to display the charging status.
• Own consumption less than 2.5 mA with LED on.

Technical specifications

• Brand: Kemo Electronic
• Model: M149N
• Nominal battery voltage: 12 V DC
• Battery type: lead acid
• Open circuit panel input voltage: 14–30 V DC
• Maximum input current: 10 A
• Short-term permissible current: up to 20 A for a maximum of 5 minutes
• Charge activation threshold: battery voltage below approximately 13.4 V
• Charge cut-off threshold: battery voltage above approximately 14.4 V
• Indicators: Charging LED and Full Battery LED
• Self-consumption: < 2.5 mA with LED on
• Dimensions: approx. 72 × 50 × 42 mm, without fasteners

Connection and use

Check that the panel and battery comply with the specified voltages and currents. Connect the regulator according to the product manual and respecting the polarity of the connections.