-- Applied to dual battery system, Lithium lead-acid battery used at the same time.-- The PV/generator charges the backup battery separately.-- The PV and generator charge the backup battery simultaneously.-- PV to charge the starter battery.-- Supports multiple generator types such as smart generators (Euro VI) and traditional generators.-- Loss compensation/temperature compensation for backup battery charging voltage line.-- High temperature charging automatic derating / low temperature prohibit charging.
NVMA Series DC/DC&MPPT solar charging controller is based on multi-phase synchronous rectifier technology and advanced MPPT control algorithm, adopting all-digital intelligent design, which has fast response speed, high reliability and high industrialized standard. Polyphase synchronous rectifier technology can ensure high conversion efficiency under any charging power, and greatly improve the energy utilization of the system; the industry-leading PowerCatcher MPPT technology realizes the maximum energy tracking of solar panels, so that it can quickly and accurately track the maximum power point of solar panels in any environment and obtain the maximum energy of solar panels in real time.
This Product is a DC/DC intelligent charger for vehicle or ship system. Applied in the dual-battery system, the system integrates the respective merits of generator's power generation and photovoltaic power generation, and a variety of charging methods are ingeniously designed and combined to effectively ensure that the power lof the dual-battery system is sufficient al the time. Solar energy and generator can charge the backup battery simultaneously, and can charge the backup battery independently. In addition, solar energy can charge the starting battery under specific conditions.

| Product Parameters |
|
|
|
|
| Product Type | NV-MA2430N15 | NV-MA2440N15 | NV-MA2460N15 | NV-MA4830N15 |
| Static power consumption | ≤30mA | ≤40mA | ≤50mA | ≤50mA |
| Battery type | USE/FLD/GEL/LI/SLD(Default) |
| System Voltage | 12V/24V | 12V/24V/36V/48V |
| Battery's operating voltage range | 8V-32V | 8V-64V |
| Rated Charging Current | 30A | 40A | 60A | 30A |
| MaximumPVInputCurrent | 27A | 35A | 53A | 27A |
|
|
|
| 400W/12V |
| Maximum solar panel power | 400W/12V | 520W/12V | 800W/12V | 800W/24V |
| 800W/24V | 1040W/24V | 1600W/24V | 1200W/36V |
|
|
|
| 1600W/48V |
| Maximum PV Open-circuit Voltage | 150V |
|
|
MPPT Operating Voltage Point Range | (Battery Voltage +2)~110V |
|
|
| MPPT Efficiency | >99% |
|
|
| Charging Conversion Efficiency | 85%-98%(10%~99% of rated power) |
|
|
| Rated load current | 30A | 40A | 40A | 30A |
| Load operation mode | Pure light-dependent control, light and time-dependent control, manual mode (default), debugging mode, normally opened. |
| Parallel connection for charging | × | × | √ | √ |
| Line loss compensation | × | × | √ | √ |
| Charging cut-off current setting | √ | √ | √ | √ |
| Constant voltage output setting | √ | √ | √ | √ |
Charging temperature compensation of lead-acid battery | √ | √ | √ | √ |
| Temperature protection | √ | √ | √ | √ |
| Overload/short-circuit protection | √ | √ | √ | √ |
| Load pre-start | √ | √ | √ | √ |
| TTL Communication | Baud Rate 9600kps |
| RS485 Communication | One isolated RS485 communication port, with power output of 5V200mA, baud rate of 9,600kps by default and adjustable. | 2 isolated RS485 communication ports, supporting parallel use, with power output of 5V200mA, baud rate of 9,600kps by default and adjustable. |
| CAN communication | Optional (RV-C Protocol) |
| Historical Data | Can store historical data of the past 300 days |
| Backlight function | Light up if the key is pressed down, and automatically turn off in 20s if there is no key action |
| PV Overvoltage Protection, PV Reverse Connection Protection, PV Short-Circuit Protection, Nighttime Reverse Charge Protection, Input Limited Power Protection, Overtemperature |
| Protection function | Protection, Load Short-Circuit Protection, Load Overload Protection, Battery Supervoltage |
| /Over-discharge Protection, Battery Reverse Connection Protection and Battery Terminal Short-Circuit Protection. |
| Grounding Type | Co-negative design and negative grounding |
Operating ambient temperature range | -35℃~ 65℃ (no derating within 45℃ if well ventilated) |
| Protection Grades | IP32 |
| Cooling mode | Natural Cooling |
| Size | 260*216*83.2mm | 260*216*98.5mm |
| Weight | 2.3kg | 3.4kg | 3.6kg |

Product Characteristics
◆Using MPPT technology, the tracking efficiency of MPPT can reach 99.9%.
◆Support CAN communication function (optional).
◆Supports a wide variety of batteries such as SLA、GEL、FLD、Li、 user-defined.
◆Support line loss compensation of charging voltage, so that the battery charging
voltage control is more accurate (partial models).
◆Support starting capacitive load and inductive load.
◆RS485 communication supporting standard Modbus protocol, with baud rate adjustable.
◆Support TTL communication of standard Modbus protocol, with baud rate fixed.
◆With perfect charging and discharging protection mechanism such as supervoltage,
overcurrent, overload, overtemperature and short-circuiting.
◆ Using high-quality aluminum radiator and high-temperature derating processing
can ensure reliable and efficient operation in each work environment.
