MPPT Solar Charger Controller 12V 24V 25A 35A 45A

Key Features

• MPPT Solar Tracking — It tracks the maximum power point voltage of the solar array as weather changes, so more power is collected through the day.
• 3-Stage Charging — It uses a 3-stage charging algorithm that holds battery charge with preset parameters once the battery is full.
• Adaptive Boost Charging — During initial charging it monitors the battery's response and sets the boost stage length for each charging cycle, which helps avoid overcharging during boost.
• Three Current Ratings — It is offered in 25A, 35A and 45A charging current options to suit different solar storage systems.
• 12V and 24V Systems — It is compatible with 12V and 24V system voltages.

Product Specifications

• System Voltage: 12V; 24V
• Charging Current: 25A 35A 45A
• Battery Voltage Range: 9~30V
• Max PV Open-Circuit Voltage: 100V
• Max. Power Point Tracking Efficiency: >99%
• Conversion Efficiency: ≤98%
• Operating Temperature Range: -35℃~+45℃
• IP Class: IP32
• Dimensions: 160x115x51mm 195x135x65mm 195x135x65mm
• Compatible models: Solar Camp RV Boat

What It Is / How It Works

Solar charger controllers sit between a solar panel array and a battery bank. They regulate the charge going into the battery so the battery is charged safely as sunlight changes. This type of controller is used in off-grid solar setups, where it manages charging from the array and can also power lighting and other low-voltage loads.

Who It's For / Use Cases

Solar charger controllers suit people building off-grid or backup power systems for camps, RVs, boats and homes. They suit anyone who wants a controller that works with 12V or 24V battery banks and a solar array, and who wants to match the charging current to the size of the array and battery.

How to Use / Care

1. Use it to charge a 12V or 24V battery bank from a solar array, matching the system voltage to your battery bank.
2. Choose the 25A, 35A or 45A charging current rating that suits your solar array and battery bank.

How to Choose

Start with system voltage. Pick the 12V or 24V setting that matches your battery bank. Next, choose the charging current rating. The 25A, 35A and 45A options let you match the controller to the size of your solar array and battery bank. Check the battery voltage range and maximum PV open-circuit voltage in Product Specifications against your array before you buy.

Frequently Asked Questions

Does it work with both 12V and 24V systems?
It is compatible with 12V and 24V system voltages. The battery voltage range is 9~30V.

Which charging current should I choose?
It comes in 25A, 35A and 45A charging current options. Match the rating to your solar array and battery bank.

What charging method does it use?
It uses MPPT tracking with a 3-stage charging algorithm. Adaptive boost charging sets the boost stage length during initial charging.

What is the maximum solar input voltage?
The max PV open-circuit voltage is 100V. The max power point tracking efficiency is >99%.

What operating conditions is it rated for?
It operates from -35℃ to +45℃ and is rated for humidity up to 95% non-condensing and altitudes below 3000m. Its IP class is IP32.