The Solar Step
SUN MPPT Solar Charge Controller 12-24V DC 20A
SUN MPPT Solar Charge Controller 12-24V DC 20A
Please note that the stock quantities displayed are for our warehouse. Please confirm stock on hand directly with us before collecting your order.
Low stock: 2 left
Couldn't load pickup availability
Share
Description:
The Sun Solar MPPT 12/24V 20A Solar Charge Controller is designed to maximize solar energy efficiency by quickly tracking the maximum power point (MPPT) of solar panels. With advanced tracking technology, it achieves an efficiency of up to 99.5%, ensuring optimal performance in any environment.
This versatile charge controller is ideal for home solar systems, communication base stations, solar streetlights, traffic lights, and off-grid applications. It supports multiple battery types, including Sealed, GEL, Flooded, LiFePO4, and Lithium-ion batteries, with a temperature compensation function to enhance battery longevity.
Key Features:
Advanced MPPT Technology
- High tracking efficiency of ≥99.5% for maximum solar power utilization
- Fast MPPT tracking speed ensures real-time optimization
- Accurate multi-wave peak tracking for varying sunlight conditions
- Maximum conversion efficiency up to 97% for reduced power loss
Smart & Reliable Performance
- Automatically detects 12V or 24V battery voltage
- LCD display for real-time operational data and status monitoring
- RS485 communication support for remote monitoring and parameter adjustments
- Power statistics recording function for performance tracking
- Multiple load control modes: General mode, light control mode, dual-time mode, charger mode, and timing mode
Battery Protection & Compatibility
-
Supports multiple battery types:
- Sealed, GEL, Flooded, LiFePO4, and Lithium-ion (NiCoMnO2)
- Integrated battery temperature compensation to prevent overcharging and prolong battery lifespan
- Reliable maximum input power protection to safeguard connected solar panels
Versatile Applications
- Ideal for: Home solar systems, communication base stations, solar streetlights, traffic lights, and remote power solutions
- Compatible with PC monitoring software & external display units for real-time system control
Technical Specifications:
- Input Voltage: 12V / 24V Auto Detection
- Rated Current: 20A
- Tracking Efficiency: ≥99.5%
- Conversion Efficiency: Up to 97%
- Communication Interface: RS485
- Battery Compatibility: Sealed, GEL, Flooded, LiFePO4, Lithium-ion (NiCoMnO2)
- Load Control Modes: General, Light Control, Dual-Time, Charger, Timing
- Operating Temperature: -10°C to 50°C
- Display: LCD Screen for operational data
- Protection: Overcharge, Over-discharge, Short Circuit, Overload
Installation & Warranty
- Installation must be performed by a qualified electrician
- Supports RS485 communication for remote monitoring
- Warranty: Manufacturer's warranty included (confirm duration)
Let customers speak for us
from 103 reviewsSystem works very well, happy with purchase.

Very impressive store. Friendly service. Ruan is an excellent salesman and very professional.
We bought the 11kva system last week. Customer service is excellent, delivery excellence, installed and working like 4 paired horses bulling a wagon. We're thrilled and keep up the great work guys.
A big thank you to The Solar Step team for the excellent service, I am very happy with my product!
This place has amazing service the staff are so friendly and fast to help i would highly recommend
This place has amazing service the staff are so friendly and fast to help i would highly recommend
Great products that saves you money and preserve energy.
Great products that saves you money and preserve energy.
Friendly, helpful, great customer service.
The staff was very helpful and they were quick to respond to my messages aswell as give me the best system that fits into my budget and that is also in great quility
Outstanding Service!
I had an amazing experience with this company! From start to finish, their team was professional, knowledgeable, and efficient.
Good service, frienfly assistance, great products. Just overall amazing
A chap named Ruan assisted me with a few items I need. He was very helpful and knowledgeable. Will highly recommend The solar step and Ruan. Keep up the good work
This place has the best service, the staff are so friendly and helpful would recommend

So far it looks like a good controller. The only difficulty is that the manual is not complete and helpful - there are selectable options (all abbreviated and in codes) on the controller which are not explained in the manual.
Good and prompt service
Subscribe to our emails
Be the first to know about new collections and exclusive offers.