100A Solar Panel Charge Controller | DC 12V 24V Adjustable PWM Battery Charger With LCD Display

Description Dartello - Solar Accessories 100A Solar Panel Charge Controller - DC 12V 24V Auto-Detect with LCD Display 100A Max Current  –  12V / 24V Auto-Detection  –  PWM Charging  –  Adjustable 10A to 100A  –  LCD DisplayFor solar panels, home battery systems, caravans, boats and off-grid installations. ✓ Under 10mA Self-Consumption  |  ✓ Float Charge Adjustable  |  ✓ 4 Protection Systems  |  ✓ Dual MOSFET Reverse Protection Add to Cart - Order Today Speak to a Specialist 100% Tested Before Shipping Expert Support Available Fast Dispatch Refund and Exchange Accepted Why this charge controller Eight reasons solar builders choose this unit. PWM Charging Technology Reliable pulse width modulation charging optimised for smaller solar systems and standard battery types. 100A Maximum Current Supports high-capacity battery banks. Adjustable from 10A to 100A to suit any system size. 12V / 24V Auto-Detection Automatically identifies your battery bank voltage on startup. No manual configuration required. LCD Status Display Shows battery voltage, charging current, load current, temperature and system status at a glance. Adjustable Charge Settings Customise float charge (default 13.7V) and discharge reconnect (default 12.6V) to match your battery specs. 4 Protection Systems Short circuit, open circuit, reverse polarity and overload protection all built in as standard. Under 10mA Self-Consumption Minimal standby draw keeps your battery topped up rather than draining it through the controller. Wide Battery Compatibility Supports sealed lead acid, vented gel and lithium battery types in a single unit. 100A Maximum Charging Current Who is this controller for? The 100A PWM controller is for anyone building or expanding a solar charging system. From small rooftop panels to larger off-grid battery banks – this controller manages your solar input reliably and safely. Homeowners Managing solar panels charging a home battery bank. Auto-voltage detection means simple, error-free installation even without prior solar experience. Caravan and Motorhome Regulating roof solar panels into a leisure battery bank. Adjustable settings and minimal self-consumption make it ideal for mobile installations. Boat and Marine Connecting solar panels to 12V or 24V marine battery banks. Dual MOSFET reverse protection handles the vibration and damp conditions of marine environments. Off-Grid Cabins Controlling solar input for off-grid battery storage. Supports sealed, gel and lithium batteries to cover the most common off-grid battery choices. What can this controller manage? A 100A controller handles serious solar input. At 100A maximum current, this controller supports large panel arrays charging substantial battery banks. Here is what you can run through it: ✓  Up to 1200W solar panel input at 12V✓  Up to 2400W solar panel input at 24V✓  Lead acid, AGM, gel and lithium batteries✓  Two controllers in parallel for 200A total✓  Unlimited parallel connection supported✓  Adjustable load output for lighting and devices ✓  Home solar battery charging systems✓  Caravan and motorhome roof panel arrays✓  Boat and marine 12V / 24V battery banks✓  Off-grid cabin and remote property setups✓  Farm solar charging for outbuildings✓  Backup power battery maintenance charging Need MPPT instead of PWM? MPPT controllers achieve up to 30% more efficiency from the same panels, especially in low-light or cold conditions. If your system runs more than 400W of panels, consider our MPPT charge controller range instead. Not sure which is right for your setup? Message us on WhatsApp – free recommendation. What's in the box Everything needed for a complete installation. Includes the controller unit, mounting hardware and full documentation. 01 – 100A PWM Charge ControllerLCD display panel, PWM charging circuitry, dual MOSFET protection. Auto 12V/24V detection. Ready to wire. 02 – Mounting HardwareAll screws and brackets for wall or panel mounting included. Suitable for indoor and sheltered outdoor enclosures. 03 – Terminal ConnectorsAll necessary connection terminals for solar panel input, battery bank and load output wiring. 04 – User Manual (English)Full wiring diagram, setting guide, troubleshooting section and parameter adjustment instructions. Why charge control matters Without a controller, solar panels overcharge and destroy batteries. A solar panel left connected directly to a battery will push current into it regardless of charge state. Lead acid batteries overcharged in this way boil electrolyte, warp plates and fail within months. A PWM charge controller sits between your panels and battery, regulating current precisely through three stages – bulk, absorption and float – to deliver a full charge without damage. When the battery reaches float voltage, the controller pulses current to maintain charge without overcharging. At 100A capacity and under 10mA self-consumption, this controller adds maximum capability with negligible standby drain on your battery bank. Technical features Built for reliable, long-term solar management. PWM 3-Stage Charging Bulk, absorption and float charging stages deliver a complete charge cycle optimised for battery longevity. The float stage maintains charge without gassing or plate damage. ✓ Extends battery lifespan 12V / 24V Automatic Voltage Detection Identifies your battery bank voltage on first connection. No jumpers, no switches, no risk of setting errors that can damage batteries or panels. ✓ Error-free setup every time Adjustable 10A to 100A Charging Current Scale the charging current to match your battery capacity. Float and discharge reconnect voltages are independently adjustable to match your exact battery specification. ✓ Tuned to your battery chemistry Dual MOSFET Reverse Current Protection Two MOSFET transistors prevent reverse current flow from battery to panels at night, eliminating the diode voltage drop that wastes energy in single-diode designs. Low heat, high efficiency. ✓ Less heat, more energy delivered 4-Way Built-In Protection Short circuit, open circuit, reverse polarity and overload protection all active continuously. No external protection components required for basic installations. ✓ Safe straight out of the box Parallel Operation for 200A Connect two identical controllers in parallel to double charging current to 200A. Unlimited parallel connection is supported for very large battery bank charging requirements. ✓ Scalable for large systems Technical specifications Full specification sheet ELECTRICALCharging Technology  |  PWM (Pulse Width Modulation)Maximum Charging Current  |  100AAdjustable Current Range  |  10A to 100ABattery Voltage  |  12V / 24V (auto-detection)Max Solar Input (12V system)  |  50V / 1200WMax Solar Input (24V system)  |  50V / 2400WSelf-Consumption  |  Less than 10mACharging Efficiency  |  High efficiency dual MOSFET design CHARGING SETTINGSFloat Charge Voltage (default)  |  13.7V (adjustable)Discharge Reconnect Voltage (default)  |  12.6V (adjustable)Charging Stages  |  Bulk, Absorption, FloatBattery Types Supported  |  Sealed Lead Acid, Vented Gel, Lithium PROTECTION AND FEATURESShort Circuit Protection  |  Built-inOpen Circuit Protection  |  Built-inReverse Polarity Protection  |  Built-inOverload Protection  |  Built-inReverse Current Protection  |  Dual MOSFETDisplay  |  LCD (voltage, current, temperature, status)Parallel Operation  |  Supported (200A with 2 units)Delivery  |  3-5 business days dispatch, 5-15 days delivery Ideal applications Where this controller is used every day. Home Solar Systems Regulating rooftop or garden solar panels into home battery storage. Supports 12V and 24V battery bank configurations. Caravan and Motorhome Managing roof solar panels into leisure batteries. Auto-detection and low self-consumption ideal for mobile use. Boat and Marine 12V and 24V marine battery charging from solar panels. Dual MOSFET protection handles damp and vibration conditions. Off-Grid Cabins Solar input management for remote properties not connected to the grid. Supports gel and sealed batteries common in off-grid setups. Agricultural and Farm Powering remote water pumps, lighting and monitoring equipment via solar and battery in exposed outdoor locations. Garden and Outbuildings Charging batteries for garden workshops, lighting and gate automation systems from solar panels. Camping and Overlanding Managing solar input into portable battery packs for extended camping, overlanding and 4×4 expedition trips. Backup Power Systems Maintaining charge on backup battery banks from solar to ensure they are always ready when grid power is unavailable. Build quality Tested. Protected. Reliable. 100A Max Charging Current 10mA Max Self-Consumption 4 Built-in Protection Systems Dual MOSFET reverse current protection eliminates the energy loss associated with blocking diodes, delivering more of your solar harvest to your battery. The four built-in protection systems – short circuit, open circuit, reverse polarity and overload – operate continuously without requiring external fuse configurations in standard installations. Every unit is 100% tested before shipping. Self-consumption under 10mA means this controller does not meaningfully drain your battery during periods of low or no solar input – a critical specification for off-grid and mobile installations. Why choose this controller The connection between your panels and battery deserves proper management. 01 100A Handles Real Systems Many lower-rated controllers cannot manage the current a large panel array produces on a bright day. At 100A, this controller has headroom for panels running at full output without throttling your charging rate. 02 Auto-Detection Prevents Errors Manually setting voltage on a charge controller and getting it wrong can damage your battery bank within hours. Auto 12V/24V detection removes that risk entirely – the controller reads your system and configures itself. 03 Under 10mA Standby Draw A controller that draws 50-100mA at night slowly drains your battery through winter months of short days. Under 10mA self-consumption means this controller takes negligible energy from your battery outside charging hours. 04 Adjustable Settings for Any Battery Float voltage, discharge reconnect voltage and charging current are all independently adjustable. Whether you are charging AGM, gel or lithium, you can tune the controller to match your battery manufacturer’s recommended charge profile. Installation overview Most customers complete wiring in under one hour. Three connections – solar panels in, battery bank, optional load output. Auto-voltage detection handles configuration automatically on first power-up. 01 Mount the Controller Fix to a wall or panel in a dry, ventilated location. Leave clearance around the unit for airflow. Avoid direct sunlight on the controller body. 02 Connect Battery First Always connect the battery bank before solar panels. Match positive to positive and negative to negative terminals. The LCD display activates and auto-detects system voltage. 03 Connect Solar Panels Connect your solar panel array to the PV input terminals. Observe correct polarity. The controller begins charging automatically when panel voltage exceeds battery voltage. 04 Set and Verify Check the LCD display for correct voltage and charging current readout. Adjust float and discharge settings if required for your specific battery type. Installation complete. Frequently asked questions Common questions answered. Q: What is the difference between PWM and MPPT?A: PWM controllers are reliable and cost-effective for smaller systems. MPPT controllers extract up to 30% more energy from the same panels, especially in cold or low-light conditions, but cost more. For systems under 400W of panels, PWM is a practical and proven choice. For larger systems, MPPT is recommended.Q: How many solar panels can I connect?A: At 12V, up to 1200W of panels (maximum 50V input). At 24V, up to 2400W. Ensure total panel Voc does not exceed 50V for safe operation.Q: Do I need to set the voltage manually?A: No. The controller automatically detects whether your battery bank is 12V or 24V on first connection. No jumpers or manual configuration required.Q: Is this compatible with lithium batteries?A: Yes. The controller supports sealed lead acid, vented gel and lithium battery types. Adjust the float charge and discharge reconnect voltages to match your lithium battery manufacturer’s recommended charge profile.Q: Can I use two controllers in parallel?A: Yes. Two 100A controllers can be connected in parallel for a combined 200A charging current. Unlimited parallel connection is supported for very large systems.Q: What does the LCD display show?A: Battery voltage, charging current, load current, working mode, product temperature and system status are all displayed in real time.Q: Does it work with panels already installed?A: Yes. Disconnect your existing controller if replacing one, then connect battery first, panels second. The auto-detection system configures itself on startup.Q: How long does delivery take?A: Items are dispatched within 3-5 business days. Expedited international delivery is estimated at 5-15 business days depending on destination.Q: What if I need help with installation?A: Message us on WhatsApp before or during installation. Our team confirms correct wiring for your specific panel and battery configuration – free of charge. Shipping information Worldwide Shipping Available Most in-stock items are dispatched within 3-5 business days with full tracking provided by email after shipment confirmation. Expedited international shipping options are available for selected products depending on destination country. Estimated delivery is 5-15 business days for expedited international orders. �� Not sure about shipping to your country? Message us on WhatsApp before ordering – our team will confirm availability and timelines for your destination. Ready to take control of your solar system? The 100A PWM Charge Controller ships complete and ready to wire - dispatched within 3-5 business days. Not sure if PWM is right for your system or need help sizing your controller? Our solar specialists are available via WhatsApp to confirm the correct specification before you order. Add to Cart - Order Today Ask a Question