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45A solar charge controller/regulator with LCD display for 12V/24V/36V/48V battery
Art: VS4548BN
Description
PHOTONIC UNIVERSE SOLAR
45A PWM Solar Charge Controller
Model: VS4548BN | 12V/24V/36V/48V Auto-Detect | LCD Display
The Photonic Universe VS4548BN 45A Solar Charge Controller is an advanced PWM (Pulse Width Modulation) regulator designed for robust off-grid solar power systems. It efficiently manages the charging of 12V, 24V, 36V, or 48V battery banks, ensuring optimal performance and extended battery lifespan.
Equipped with an intuitive LCD display, this controller provides comprehensive system monitoring and allows for easy customisation of charging parameters and load work modes, making it suitable for a wide range of applications from small cabins to larger remote installations.
SYSTEM COMPATIBILITY: Automatically detects 12V, 24V, 36V, or 48V battery systems for versatile use.
Key Features
| ▶ 45A Charging Capacity — Supports substantial off-grid solar setups. |
| ▶ Auto Voltage Selection — Works seamlessly with 12V, 24V, 36V, and 48V battery systems. |
| ▶ Informative LCD Display — Monitor performance and adjust settings with ease. |
| ▶ Advanced PWM Charging — Boosts battery acceptance and extends battery life. |
| ▶ Broad PV Compatibility — Handles up to 2.56kW (48V system) and input voltages up to 96V. |
| ▶ Programmable Settings — Customise charging parameters and load work modes. |
| ▶ Optional Remote Monitoring — Supports MT50 remote meter, Wi-Fi module, and PC connection. |
Technical Specifications
| Parameter | Value |
|---|---|
| Rated Charge Current: | 45A |
| System Voltage: | 12V/24V/36V/48V Auto |
| Max. PV Input Voltage: | 96V |
| Max. PV Input Power (48V): | 2.56kW |
| Battery Types: | Sealed, Gel, Flooded |
| Self-Consumption: | Max. 15mA (12V) |
| Operating Temperature: | -25°C to +55°C |
| Terminal Wire Size: | Up to 35mm² |
| Dimensions (L x W x H): | 20.5 x 12 x 7 cm |
Charging & Battery Modes
The VS4548BN employs a sophisticated 3-stage PWM charging algorithm (Bulk, Boost, Float) to optimise battery health and extend lifespan. It supports various battery types, including sealed, gel, and flooded lead-acid batteries, with automatic voltage detection for 12V, 24V, 36V, and 48V systems.
Users can fine-tune charging parameters and define custom battery types for precise energy management. The controller also offers flexible load work modes, allowing for timed control of connected DC loads.
For enhanced accuracy, an optional remote temperature sensor can be connected directly to the battery, ensuring temperature-compensated charging for optimal performance.
Typical Applications
| Application | Description |
|---|---|
| Off-Grid Homes & Cabins | Manages solar charging for lighting, appliances, and essential loads in remote dwellings. |
| Motorhomes & Caravans | Ensures efficient battery charging for mobile leisure vehicles. |
| Marine Systems | Reliable power management for boats and yachts. |
| Small Business & Industrial | Powers remote monitoring stations, security systems, or backup power for critical equipment. |
Built-In Protection Functions
The Photonic Universe VS4548BN controller incorporates a comprehensive suite of electronic protections to safeguard your solar system and batteries. This includes protection against reverse current at night • overcharging • deep discharge • reverse polarity • short circuits • overheating • and overloading.
Common Questions
What battery types are compatible?
This controller is compatible with sealed, gel, and flooded lead-acid batteries. It automatically detects the system voltage (12V, 24V, 36V, or 48V).
Can I monitor the system remotely?
Yes, the controller supports optional accessories for remote monitoring, including the MT50 remote meter, a Wi-Fi module for smartphone access, and an RJ45 to USB cable for PC connection.
What is the maximum solar panel input power?
The controller can handle a combined solar panel power of up to 2.56kW for a 48V battery system, with a maximum PV input voltage of 96V.
Does it have protection features?
Absolutely. It includes comprehensive electronic protection against overcharging, deep discharge, reverse polarity, short circuits, reverse current at night, and overheating.
Installation Notes
- Always connect the battery to the controller first, then the solar panels.
- Ensure correct polarity for all connections to prevent damage.
- Install in a well-ventilated area, away from direct sunlight and moisture.
- Use appropriate wire gauges for all connections to match the 45A current rating.
- Refer to the included user manual for detailed wiring diagrams and operational instructions.
Before You Buy
- Verify your total solar panel array power and voltage are within the controller's limits (Max 2.56kW @ 48V, 96V Max PV input).
- Confirm your battery bank voltage (12V, 24V, 36V, or 48V) is compatible.
- Consider if optional accessories (remote meter, Wi-Fi, PC cable) are needed for your monitoring preferences.
- Ensure you have adequate space for installation, considering the controller's dimensions.
- Professional installation is recommended for complex solar setups.
Always verify product specifications and compatibility with your specific solar system components before purchase and installation. This product is covered by a 2-year manufacturer warranty.
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