PowMr 10000W Solar Inverter 48V to 120/240V Split-Phase Output, Split-Phase Hybrid Inverter 10000W Built-in 200A MPPT Controller, Support 6-Unit Parallel and Can Batteryless Run

Excellent inverter, it's very reliable and easy to install, and it appears to be built with good quality materials.

Using this hybrid inverter as part of a backup system for when our utility shuts the power off, and it has performed very well. To get some ROI on the investment, we wanted it to power some appliances during the day and especially during 5-8 pm when our rates are the highest, and switch back to grid power when the battery dropped below 75% so that we have some backup for lights and electronics if we needed it. We were able to set it up to do just that, hence the 5 stars. There is an screen that displays the current mode of operation that is very easy to understand. For example in the picture, you can tell that the power is coming from the grid while the battery is being charged by solar. However, it was really tricky to program because of a very difficult to navigate input system. You have 3 buttons to program 37+ values, and to reach any of those you need to cycle through all the ones preceding. It is the same 2 buttons (Up and Down) to view the different sensors. You have access to many readings, such as battery voltage, output pv power, voltage and amperage, output power, etc, but that also means cycling through 12 displays, including some that are firmware-level (like the fact this is a 24V input, 120V unit). This and the programming above are areas that could be improved. For anyone trying to set it up the same way, here's my settings for a 24V Solar PV system and 24V LiFePo battery pack: * "Load Working Mode" ([01] SOL) : Use Solar first, then battery, then grid * "Battery Charging Mode" ([06] OSO : Only charge the battery with solar power * "Battery Power to Utility Setpoint" ([04] 25.2V) : When the battery drops below this voltage, switch to grid power. For my battery pack, 25.2V is 75%. Important: the manual doesn't specify this, but you must set "Battery Undervoltage Alarm" [14] higher than [04]. If it is lower, the system will simply ignore your setting for [04]. To check, after you set the value, scroll back to [04] and make sure it was applied properly. This really tripped us up initially. You can safely ignore the red "Fault" warning when this alarm is tripped off. We disabled the alarm sound as it's part of normal operation for us. * "Utility to Battery Power Setpoint" ([05] 26V): The opposite of [04]. When the battery exceeds this voltage, switch back to primary operation, in this case use solar first, then battery. For my battery pack, 26.0V is 90%. * "Battery Type" ([08] LF08): Our battery pack matches this setting the closest. Check your battery's manual for the correct values. * "Battery Undervoltage Alarm" ([14] 25.4V): Make sure to set this higher than [04]. The default is only if you want to let the battery fully discharge before switching to grid power. * "Buzzer alarm" ([25] DIS): disable the alarm for low voltage. You definitely want to switch this off if the system is often switching between solar and grid like ours. * "Alarm" ([26] DIS): This will beep when there is a switch from solar to grid or back. We turned it off.

Product worked beautifully two times, But during those two times, inverter at idle was using 0.450 kwh , 450 watts and was only was charging batteries, the 120v was disconnected Now it won't charge batteries because it says solar is 86v but only 0.02 amps, even though with tester it's 10.87 amps, i also disconnected batteries and the input battery indicator says 26.7 volts even after turning off and back on, so probably never had an accurate battery voltage, also tested batteries after charge, one side of 8 batteries neg side was 13.3 volts, POS side 8.64 volts, that could be bad battery regulating that side, have to do more research I do have older version, square outline display panel, instead of round as pictured , and only 100 volts max in from solar panels , newer one says 400 volts

Lo compré para mi país Cuba ya q ahora enfrenta los apagones si estás pensando poner paneles este es el mejor cómpralo no te errepentiras

First if you have the slighest experience with wiring or electronics you could install this without the instructions because all the ports and internal connection points are labeled. If you dont have experience the large sheet color instructions are clear and easy to follow. Second its basically perfect for a boat or small house solar. The 3k inverter is enough to run a 1500 watt heat gun and still run my tv and fridge. I use lifepo4 batteries and charge up to 5kw at a time, this charger will charge up to a little more than a kWh ber hour from utility power. I also use a pigtail to charge from a generator through my shore power connection. Your charging from solar will depend on your output of course. Unit is quiet at low to moderate loads and even with the fans on it not very loud. The LCD is easy to read and understand. LEDs are easy to see, and the included book includes all the register values and defaults. You'll probably only need to change two to four of the values, like battery type and charging behavior. The WiFi dongle is completely useless. Basically it showed me the product information printed on the unit. I was never able to even see live data much historical data. If you want a system for a boat that is zero hassle once you set it up and run or have 24 v battery pack then this is a great choice, I couldnt be more pleased.

At first it worked good. Then it started saying the Batteries are 100% charged in the mornings after I used the power all night. Thinking the batteries are full it doesn't charge the batteries the next day and eventually the batteries run out of power. To be able to use my solar system I have to shut down the PV input, turn the inverter off, Then disconnect the batteries. Next turn the batteries back on, power up the inverter, then turn the PV back on. and it will work fine untill the next morning. They only have email web support You must have a jpeg of your invoice, a video showing the problem and a picture of your spec sheet on the bottom of the unit to even send an email. Maybe they will get back with you or maybe not. I can't be gone over night because I don't want to loose my refrigerator or freezer full of food I am totally off grid. I have a Bluetti AC 300 I use as a backup but I have to be there to use it. After doing this review it has started working correctly again and has been working flawless sense then around one month. I am updating the review to 4 stars.

Works like a charm