Product Description
Solar Controller
Precise Voltage Regulation
Smart Charging
This HaloCore solar charge controller features an intelligent MCU control chip and a high-definition LCD display that shows key parameters in real time, including battery voltage, charging current, and energy levels. It supports automatic 12V/24V recognition and incorporates multiple protection features including overcharge, over-discharge, overload, short circuit, and reverse connection protection. Dual USB ports enable direct charging for mobile phones, tablets, and other devices. An integrated timer function makes it suitable for home solar power systems, outdoor photovoltaic storage, RV/camping solar power supply, and other scenarios. Installation is straightforward, and operation is stable.

LCD Display Smart Charging 5V Output
Battery Capacity, Voltage PWM Pulse Automatic Regulation Charging USB Devices like Mobile Phones
Smart Light Control Timer Adjustable Parameters Green and Eco-Friendly
SMT Uninterrupted Control Meets Different Battery Requirements Pollution-Free Energy Saving
Functional Features
Household solar power supply system
LCD Display Screen
High-definition display system for clear operation overview
Features an LCD display screen where timing settings correspond directly to the display, offering clear and intuitive
visualization. One-touch operation completes all configurations.
Alloy Heat-Sink Backplate
MOSFETs with silicone heat pipes tightly bonded to the backplate
Thickened heat-sink backplate enhances thermal performance. MOSFETs are designed to be in direct contact with the heat sink plate, enabling stable operation at ambient temperatures up to 60°C.
Large-Cross-Section Terminal Ports
Accommodates 6mm² Wires
Features wide-spaced terminals supporting 6mm² wires with 9.5mm spacing. This design boosts insulation reliability and installation stability while minimizing voltage drop and power loss.
ABS Engineering Plastic Housing
High strength, impact resistance, high ignition point, anti-aging
The housing utilizes ABS engineering plastic, offering high strength, impact resistance, high ignition point, anti-aging properties, and corrosion resistance. This ensures extended service life and enhanced safety.
Safety Protection
According to data statistics, the primary reason most batteries are damaged during charging without a solar controller is
The battery was damaged It was recycled prematurely It could even cause a fire
by overcharging
Multi-layered Intelligent Security Protection
Say Goodbye to Security Risks/ Safeguard System Security
6 Major
Protections
Short-Circuit Protection Overvoltage Protection
Reverse Connection Protection Temperature Compensation
Overcurrent Protection Undervoltage Protection
USB Charging
USB Charging for Extended Battery Life
USB charging port keeps your digital devices powered up anytime
Supports charging for most USB-enabled devices on the market: smartphones, tablets, PSP gaming consoles, Bluetooth headphones, cameras, and various other digital products.

LCD Display
Adjustable charging and discharging parameters
Dual USB charging ports
Light sensor + delay time customizable
Battery level display
Voltage display

Solar Controller 12V/24V Auto-Detection
Safety Usage Recommendations
1. This controller automatically adapts to 12V/24V systems. During initial installation, ensure the battery has sufficient charge voltage to enable the controller to identify the correct battery type.
2. This controller is only compatible with various lead-acid batteries (including open-vented, sealed, gel, etc.). Do not use with other battery types (including lithium batteries, nickel-metal hydride batteries, etc.).
3. This controller must only use photovoltaic panels as the charger. Do not use DC or other power sources as the charger.
4. This controller generates heat during operation. Ensure it is installed on a flat, well-ventilated surface.
5. Install the controller as close to the battery as possible to avoid voltage drop caused by excessively long cables, which may affect accurate voltage detection.
Voltage Symbol
Hours Menu Key Digital Display Area Current Symbol
Solar Panel
Load Indicator
Scroll Up
Charging Indicator Output Indicator
Steady On: Direct Charge/Boost Charge
Slow Flash: Float Charge Scroll Down/Manual
5-Segment Battery Level Indicator
Menu Button: Used to switch between parameter display screens. Press and hold for 5 seconds to enter or exit parameter settings.
Up Arrow: In parameter settings, press once to increase the parameter by one increment.
Down Arrow: In parameter settings, press once to decrease the parameter by one increment.
System Connection
1. Connect the battery terminals to the controller as shown in the diagram. The controller will automatically detect the battery voltage.
2. Connect the load terminals to the controller as shown in the diagram. Ensure correct polarity; do not reverse connections.
3. Connect the solar panel to the controller as shown in the diagram.
Note: Strictly follow the above connection sequence. Failure to do so may damage the controller.
Disassembly follows the reverse order of connection.

Product parameters
Troubleshooting Guide
Abnormal Conditions | Possible Causes | Solutions |
Sunlight is sufficient but charging does not occur | Open circuit or reverse connection of solar panels | Reconnect the solar panels |
Load indicator does not illuminate | Incorrect mode settings | Reset the system |
Battery voltage too low | Recharge the batteries | |
Load indicator flashes slowly | Load overload | Reduce the load power |
Load indicator flashes rapidly | Short-circuit protection | Remove the short circuit; automatic recovery |
Controller does not illuminate | Battery voltage too low / Reverse connection | Replace the battery / Check for reverse connection |
Technical Specifications
Project | Parameter Values |
System Voltage | 12V/24V Auto-Adaptive |
Model | W88-A, W88-B, W88-C, W88-D, W88-E, W88-F |
Rated Charge Current | 10A, 20A, 30A, 40A, 50A, 60A |
Rated Discharge Current | 10A, 10A, 10A, 20A, 20A, 20A |
Maximum PV Voltage | Maximum 23V for 12V battery; Maximum 46V for 24V battery |
Boost Charge Voltage | B1 Sealed: 14.4V; B2 Gel: 14.2V; B3 Open: 14.6V |
Full Charge Cut-off Voltage | 14.4V (Default, adjustable) |
Discharge Cut-off Voltage | 10.7V (Default, adjustable) |
Discharge Recovery Voltage | 12.6V (default, adjustable) |
Charge Recovery Voltage | 13.2V |
Light-controlled On Threshold | Solar Panel 8V (light-controlled on with delay) |
Light-controlled Off Threshold | Solar Panel 8V (light-controlled off with delay) |
USB Output | 2 USB Outputs, 5V/2A (max) |
Standby Current | <10mA |
Operating Temperature | -35 ~ +60℃ |
Dimensions / Weight | 133.5 × 70 × 35mm / 165g |
*Red-marked voltage values apply only to 12V systems. For 24V/48V systems, multiply by 2/4 respectively.
*Product specifications are subject to change without notice.
Display Interface/Parameter Settings
Browse Interface
Press the Menu button briefly to
cycle through interfaces and parameters.
Set Parameters
In interfaces 2-5, press and hold the
Up button for 5 seconds to restore
default values.Press and hold the
Menu button for 5 seconds to enter
manual settings mode. The displayed
number will flash. Use the Up/Down
buttons to adjust parameter values.
After adjustment, press and hold
the Menu button for 5 seconds
to exit settings mode.
① Main Interface
② Float Charge Voltage
③ Discharge Recovery Voltage
④ Discharge Cut-off Voltage
⑤ Load Operating Mode
⑥ Battery Type
Application
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Wide Range of Applications
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