45A PWM Solar Charge Controller with LCD — 12–48V | 4Boats

Compact 45 A PWM solar charge controller with an LCD display for advanced monitoring and programmable charging of 12 V/24 V/36 V/48 V battery systems.

• Rated current: 45 A; PWM (Pulse Width Modulation) charging with multi-stage charge control (bulk, absorption, float) to improve charge acceptance and battery life; fully automated operation with auto 12/24/36/48 V selection.
• Compatibility: works with solar panels up to 640W (12 V) / 1.28kW (24 V) / 1.92kW (36 V) / 2.56kW (48 V). Wide solar input voltage up to 96 V (PV open-circuit voltage limit: 96 V).
• Comprehensive electronic protection: reverse current protection at night, over-charge and deep-discharge cut-off, overheat, overload, short circuit and reverse polarity protection.
• Battery chemistry: designed for lead-acid battery types (gel, sealed/AGM, flooded). Not configured for lithium batteries unless explicitly supported and set as described in the manual — check compatibility before use to avoid damage or returns.
• Additional features: LCD display with multilevel menu operation and a user-friendly interface with 4 multifunction buttons; LED indicators and built-in temperature sensor for temperature-compensated charging.
• Real-time monitoring and statistics: access voltage, current, battery state of charge and temperature; energy statistics counter shows accumulated daily and monthly charge.
• Remote and control options: the controller can be connected to a remote meter (MT50) with LCD; further control and communication methods are described in the manual.
• Electrical and physical specs: self-consumption max. 15 mA (12 V); working temperature −25°C to +55°C (−13°F to +131°F); terminals accept wire up to 35 mm²; size 20.5 x 12 x 7 cm (8.07 x 4.72 x 2.76 in); weight 1.2 kg (2.65 lb).
• Installation and battery compatibility: designed for a single battery or battery bank (gel, sealed or flooded); controller selects working mode automatically. For systems with an inverter, a 48 V battery bank is recommended to reduce current through the controller.
• Installation: this unit comes with a detailed user manual which explains wiring, parameter programming and maintenance guidance; consult the manual for exact wiring diagrams and settings.
• Alternate names: 45 A PWM regulator, solar regulator, 12 V/24 V/36 V/48 V charge controller (terms used interchangeably).

Note: Verify PV Voc limits and battery chemistry compatibility before installation. If your system uses lithium batteries, confirm model support and required parameter changes in the manual to avoid damage.