CMR4048 best 40 amp mppt dc to dc rv solar battery charger
MPPT Solar Charge Controller | 40A | 12V/24V/36V/ 48V(Auto) | PV Voltage: 150Vdc
GRANKIA CMR4048 best 40 amp mppt dc to dc rv solar battery charger is very easy to use and provide all the important information you need about the PV, battery and load.
CMR4048 mppt 40 am rv solar battery charger ensures that every drop of available power is rinsed out of your panels, and harvested for storage.
40 Amp RV Solar Battery Charger Feature
- Compatible for PV systems in 12V, 24V, 36V, 48V
- Fast MPP Tracking
- Maximum power point tracking efficiency over 99.5%
- PV INPUT 150V max Voc
- Built-in lithium battery activation function
- Support Sealed, GEL, Flooded, and Lithium-ion battery
- Three stages charging optimizes battery performance
- Die-cast aluminum design allows for efficient heat dissipation
- Ability to output in parallel to power DC loads
- Real-time energy statistic function
- Very advanced monitoring app
- Dual RS-485 communication interface allows for easy programming, control and remote monitoring
Setting UP Off-grid Solar System
Solar Controller FAQ
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What does a solar controller do?
A charge controller or charge regulator is basically a voltage and/or current regulator to keep batteries from overcharging. It regulates the voltage and current coming from the solar panels going to the battery.
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What are the two types of solar controllers?The two major types of solar charge controllers are:
- Pulse Width Modulation (PWM) controllers.
- Maximum Power Point Tracking (MPPT) controllers.
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Can I use solar without controller?
Using a solar module for low current maintenance charging can be done safely without a charge controller as long as the solar panel output is <1% of the battery capacity.
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| Model | CMR4048 | |
| MPPT Efficiency | ≥99.5% | |
| System Voltage | 12V/24V/36V/48V(Auto) | |
| Voltage Range | 12V | 9VDC-15VDC |
| 24V | 18VDC-30VDC | |
| 36V | 27VDC-45VDC | |
| 48V | 36VDC-60VDC | |
| Li-ion Battery | 8VDC-60VDC(Adjustable) | |
| Dimension | 305x185x72mm | |
| Net Weight | 2.15 Kgs | |
| PV INPUT | ||
| Max. PV Input Voltage | 150VDC | |
| Min. Vmpp Voltage | Battery voltage +2V | |
| Start-up Charging Voltage | Battery voltage +3V | |
| Low INPUT Voltage Protection | Battery voltage +2V | |
| Over Voltage Protection | 150VDC | |
| Recovery Voltage Protection | 145VDC | |
| PV Rated Input Power | 12V | 520W |
| 24V | 1040W | |
| 36V | 1560W | |
| 48V | 2080W | |
| Li-ion Battery | 504W-2016W | |
| DC LOAD OUTPUT | ||
| Load Voltage | Same as battery voltage | |
| Load Current | 30A | |
| Low Voltage Protection | 10.5VDC, 11VDC restored (Settable) | |
| Setting Parameters | Via PC software / APP / Self | |
| 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 | |
| Active Lithium Battery Function | Optional | |
| SYSTEM | ||
| Protection Function | Input low/over voltage, input/output polarity reverse connection, short circuit, over temperature, battery shedding etc. | |
| Display | HD LCD | |
| Communication | Dual RJ45/RS485, WIFI/Bluetooth(optional) | |
| ENVIRONMENT | ||
| Protection Level | IP21 | |
| Relative Humidity | 0 ~ 90% (Non-condensing) | |
| Altitude | < 3000m | |
| Operating Temperature | -20℃~+50℃ | |
| Storage Temperature | -40℃~+75℃ | |
| Noise | < 10dB | |
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