48V 140A MPPT Solar Charge Controller off grid 500V PV Lithium Battery

POWMR 48V 140A MPPT Solar Charge Controller PV Max 500V Lithium Battery Regulator

140A MPPT Chare Controoler   maximum charging current can be set to
10A/20A/30A/40A/50A/60A70A80A/90A/100A/110A/120A/130A/140A 

 

【Wide Voltage and High Power Support 】The 140A solar controller handles up to 500V open-circuit voltage and 6500W power. It features a broad MPPT voltage range of 60V to 450V DC and allows for customizable charging currents from 10A to 140A. A solar panel startup voltage of 90V and an optimal operating voltage of 280V ensure efficient performance. For optimal results, 12AWG wire is used for the photovoltaic connections 

 

【Large  LCD  screen】The solar controller's LCD offers comprehensive monitoring capabilities, providing real-time information on PV voltages, PV current, PV power, battery voltage, charge current, date, power generation capacity, error codes, and version number. This user-friendly interface supports effective system performance monitoring, issue identification, and system management  

 

【Born for energy storage batteries】For applications where electrical energy needs to be transferred from a solar array to a battery storage location over a longer distance, a high-voltage system can reduce the loss of energy during transmission. For energy storage battery 100AH, 200ah...Higher charging voltage can improve charging efficiency.High voltage direct current is used for energy transmission to reduce line loss and improve efficiency.

 

      

【Multiple Protection】The solar regulator incorporates comprehensive protection features including Undervoltage, overvoltage, overcharge, overcurrent, overheating, and short circuit protections. It also includes self-protection and self-recovery functions for perfect charging and discharging cycles. Dual smart fans ensure effective heat dissipation, preventing performance degradation due to overheating and maintaining optimal operational conditions  

 

【Compatible with a variety of battery types】140amp solar charge controller compatible with a variety of 48V batteries (Lead-acid and lithium, User customize): Sealed, Gel, Flooded and LI (LiFePO4 and Lithium-Ion) battery charging parameter pre-set, other batteries can be customized charging parameter according to your need. User-programmable Bulk charging Voltage, Float Voltage, Battery equalization voltage. Battery wire size recommend：2AWG

 

    

 

  POW-48140A MPPT Solar Charge Controller
Model 24V 48V Max. PV Array Power 4200W 6500W Nominal PV Voltage 180Vdc 280Vdc PV MPPT Range 60-450Vdc Max PV Open Circuit Voltage 500V Max. Charging Current 100A 140A      

                      

Was ist MPPT? MPPT stands for Maximum Power Point Tracking. It involves obtaining the highest possible power from the solar panel to charge the batteries. To understand the concept, we need to look at the I/V curve of a PV panel.
The voltage, current, and power of an example PV panel are shown on the left. This curve shows the possible combinations of current and voltage output from the PV panel. Power is expressed in watts and is the product of current and voltage at each point.
The maximum current is generated when there is no resistance in the circuit (short-circuit current). This is called Isc.
The maximum voltage is reached when the circuit is open or the resistance is infinite. This is called the open-circuit voltage (Voc).
There is a clear point at which the power is maximum. This point is called the maximum power point (MPP) and requires calculations, tracking, and control techniques to ensure the PV system operates at this clear point to achieve the greatest power yield. An MPPT charge controller ensures that the system operates at this point (or very close to it). What types of batteries can I use with the POW-M Series? Different battery types are used in different applications. Batteries are categorized according to two principles: application and design.
For large systems, common applications are typically automotive, marine, and deep-cycle batteries.
Photovoltaic systems, backup power, traction, and boat batteries are specific areas for deep-cycle batteries.
Two main battery types are commonly used in solar systems:
- Lead-acid, including all types of wet, sealed, AGM, and GEL batteries
- Lithium-ion batteries
When selecting a battery, factors such as cost, depth of discharge, life cycle, size, and charging and discharging times are considered. For a more detailed explanation of solar batteries, see this article.
POW-M supports all of the above battery types, including wet, sealed, AGM, GEL, and lithium batteries. Why do I need a special charge controller for lithium batteries? Common types of lithium batteries are:
(LiNiMnCoO2) – NMC / (LiFePO4) – LFP / (LiNiCoAlO2) – NCA
These batteries differ in their nominal cell voltages, energy capacity, charge and discharge rates, life cycles, thermal properties, and applications.
Increasing the voltage increases capacity, but exceeding the specification puts strain on the battery and compromises safety. For this reason, lithium-ion batteries have built-in protection circuits that prevent a certain voltage from being exceeded.
The charge rate is also important during the various stages of charging lithium batteries.
In principle, a lithium-ion charge controller is a voltage-limiting device (similar to lead-acid batteries), but lithium-ion batteries have higher voltages per cell and tighter voltage tolerances. The float charge or maintenance phase must be eliminated.
Choosing a lower voltage threshold or eliminating the saturation charge extends battery life but shortens runtime.

     

Use Scenarios

 

How to build a off-grid system Step #1: Choose an solar charge controller An charge controller that can be connected to the PV panels and battery, it controls charge and discharge process of the Battery. Step #2: Choose a 12V-48V Battery Most popular and the safest DC electric system is 12V-48V, and you can find devices for that voltage.  Step #3: Choose solar panel mounting methode Roof-top mounting: does not require additional space on your property, but it requires a permit and there is risk of foof leaks. Ground mounting: Currently the most popular method for mounting panels is to use a ground mount, it does not require any permit, easy to install & maintain. Step #4: Choose your solar panels Most solar panels today have incredible quality and output. They can last decades with zero issues. But keep a few things in mind:  - They are heavy and large. Ask for help! Do not install on windy days alone.   - Do not connect them until it is dark，dangerous high voltage. - Glass is glass, and glass breaks.  flexible solar panels might be more practical for low power application. - The most popular size for 48V off-grid system is 400-450W bifacial. - for 12V system 100-200W solar modules are quite practical. Step #5: Obtain materials and supplies You will need to go to the hardware store and make a list of everything you need. You can buy the best kit on the planet, but it usually won't come with everything you need. Here are  things you might miss:   - Tools like wire cutter & cables strippers. - Flexible conduit for narrow space and it's beginner freindly - Circuit Breakers and Load Panel.   * Note: Easy for any electrician to install. Buy the controller, power inverter and batteries, and get some expert to install it if you do not feel comfortable doing that. Tips For Selecting Solar Panel       Solar charge controller Voltage  Max. Voc: 500V MPPT Range: 60-450V Max. PV Input Power: 6500W 420Wp Solar modul for example Zellen: 108
Vmp: 32V
Imp: 13,1A
Voc: 38,15V
Isc: 13,8A PV-Input (min. 3 pcs. in series; max. 13 pcs. in series) Number of Solar Panels Total PV power 3 in series 3 1260W 6 in series 6 2520W 10 in series 10 4200W 13 in series 12 5600W   Tips for Installation of a single phase systems (not included in package) 6mm² PV Cable – High quality, reliable power transfer. Rigid conduit (3/4 in.) – Robust and perfect for a neat, clean installation. Flexibles conduit (3/4 in.) – for narrow or difficult places. Coupler (3/4 in.) – Seamless connections between lines. Pipe clamps (3/4 in.) – Ensures clean and safe installation. #4-6 x 7/8in. plastic anchor with screw – Everything you need for assembly. 2-pole Schalter – between battery and inverter 2-Pole Schalter - between PV array and inverter Professioneller circuit plan – A clear, easy-to-understand plan.

Is it possible to back up my entire home with my solar system, legally?

The best method to use this system in a legal fashion, is to hire a licensed electrician to install a transfer switch for your homes critical loads. Then have the electrician connect the transfer switch to your offgrid solar power system's load center. They will run the proper size conductors, and ground the system to NEC code.

This can be quite tricky, and will depend on where your system is located, if you have multiple buildings, and if you are in a lightning prone area. They will install a ground rod if they feel that it is necessary. Do not earth ground your system if you are not qualified.

​You could also have the electrician install what is called a RCD (residual current device) or SPD (surge protection device) if your system needs it.