CME4024 cheap 12v solar battery charger mppt 40a 24v
MPPT Solar Charge Controller | 40A | 12V/24V(Auto) | PV Voltage: 100Vdc | IP43
GRANKIA CME4024 cheap 12v solar battery charger mppt 40a 24v is a technique to observe and regulates the energy going from solar panel to the batteries.
Solar panels show changeable outputs according to weather conditions. MPPT charge control devices can match the solar panel voltage with battery voltage to maximize the charge efficiency.
MPPT 12v solar battery charger can be up to 30% more efficient, depending on the battery voltage and operating voltage (Vmp) of the solar panel.
12V Solar Battery Charger Feature
- Compatible for PV systems in 12V, 24V
- Maximum power point tracking efficiency over 99.5%
- Automatic battery voltage detection
- Touch screen LCD display and LED indicators for operation information, customizable parameters and error codes
- Three stages charging optimizes battery performance
- With temperature compensation function
- Support Sealed, GEL, Flooded, and Lithium-ion battery
- Select smart chip to reduce static standby energy consumption and reduce energy loss
- Real-time energy statistic function
- Dual RS-485 communication interface allows for easy programming, control and remote monitoring
Setting UP Off-grid Solar System
MPPT Solar Charge Controller FAQ
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What is better MPPT or PWM?
The main difference between PWM and MPPT charge control devices is that the MPPT devices are more efficient. MPPT charge control devices have 30 % more efficient in charge efficiency according to PWM type.
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Can you charge a 12V battery directly from a solar panel?
20W and 50W solar panels are good for fast charging small 12V batteries. For example, a 20W solar panel can charge a 20Ah 12V battery in around 17 hours of direct sunlight. A 50W panel can do it in around 8 hours. 80W and 100W solar panels are good for fast charging large 12V and car batteries.
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How many watts solar do I need to charge a 12V 200Ah battery?
You need around 610 watts of solar panels to charge a 12V 200Ah lithium battery from 100% depth of discharge in 5 peak sun hours with an MPPT charge controller.
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| Model | CME4024 | |
| MPPT Efficiency | ≥99.5% | |
| System Voltage | 12V/24V(Auto) | |
| Voltage Range | 12V | 9VDC-15VDC |
| 24V | 18VDC-30VDC | |
| Li-ion Battery | 8VDC-30VDC(Adjustable) | |
| Dimension | 240x170x64mm | |
| Net Weight | 2.35 Kgs | |
| PV INPUT | ||
| Max. PV Input Voltage | 100VDC | |
| Min. Vmpp Voltage | Battery voltage +2V | |
| Start-up Charging Voltage | Battery voltage +3V | |
| Low INPUT Voltage Protection | Battery voltage +2V | |
| Over Voltage Protection | 100VDC | |
| Recovery Voltage Protection | 95VDC | |
| PV Rated Input Power | 12V | 520W |
| 24V | 1040W | |
| Li-ion Battery | 504W-1008W | |
| DC LOAD OUTPUT | ||
| Load Voltage | Same as battery voltage | |
| Load Current | 30A | |
| Low Voltage Protection | 10.5VDC, 11VDC restored (Settable) | |
| CHARGE | ||
| Battery Type | Sealed(SEL), Gel(GEL), Flooded(FLD), Lithium-ion(Lit), User-defined(USE) | |
| Charging Mode | MPPT (Maximum Power Point Tracking) | |
| Charging Current | 40A | |
| Charging Method | 3-stage: CC (Constant current) – CV (Constant voltage) – CF (Float charge) | |
| Temperature Compensation | -3mV/℃/2V | |
| SYSTEM | ||
| Protection Function | Input low/over voltage, input/output polarity reverse connection, short circuit, over temperature, battery shedding etc. | |
| Display | LCD | |
| Communication | Dual RJ45/RS485 | |
| ENVIRONMENT | ||
| Protection Level | IP43 | |
| Relative Humidity | 0 ~ 90% (Non-condensing) | |
| Altitude | < 3000m | |
| Operating Temperature | -20℃~+50℃ | |
| Storage Temperature | -40℃~+75℃ | |
| Noise | < 10dB | |
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