Review on GARNDE Rosefinch Solar Charge Controller Tools & Equipment and Jump Starters, Battery Chargers & Portable Power by Adam Walsh

Update (6/25/21): A major issue was encountered during installation: the wire connections were tight, so I thought the terminal lugs would cancel. I opened the case and unscrewed the green terminal. In the next version I tried installing a battery type limited to only three and with no sealed option; However, after following the instructions, the interface got stuck and pressing any of the buttons didn't work. The only remedy was to turn off the power. I repeated the test with the solar panel connected and the same "error" condition occurred again. The last problem is the MPPT function, which I tested by connecting a 45V solar panel (a pair of panels in series) to a 24V battery. The MPPT started at 45 volts and counted down to battery voltage before returning to 45 volts and repeating the cycle. I used a current clamp to see if there was between 0 and 0.5 amps flowing to the batteries (the charging current was inversely proportional to the panel voltage). With all these issues I am reducing my rating to 1 star and cannot recommend this controller. Summary: I built a small off-grid solar/photovoltaic system. The first MPPT controller I installed is ACOPOWER 30A. Then I added RENOGY 20A. I will compare this GARNDE 30A with others. Observations: Of all the controllers I've tested in the past, I like the ACOPOWER best; The front panel interface is simple and MPPT works well. This GARNDE appears to be well built and one of the main differences is the higher input voltage of 150VDC compared to 100VDC on others. This higher input allows you to daisy chain more panels, allowing you to use a smaller panel for controller cables. Recommendations: 1) Lots of good videos online on how to build solar/photovoltaic systems; I spent a lot of time researching. 2) Take the time to learn how to choose the correct circuit breaker and make sure it is on both the battery to controller wires and the panel to controller wires. The switches also have the function of switching off the panels if required (for maintenance purposes). Pros: Good fit and finish. Cons: 1) No serial port (RS232 port not installed). All other controllers have a remote port and the ability to add a device for wireless or Bluetooth connectivity. 2) This appears to be a new offering, so it's an unverified brand (unlike ACOPOWER and RENOGY who have a lot of solar products in their range, especially solar charge controllers). and update the overview as soon as the system has been online for a month. Related products: ACOPOWER Midas 40A MPPT $160 https://www.amazon.com/gp/product/B08HQB8RYKRenogy Rover 20 Amp 12V/24V DC input MPPT $110 https://www.amazon.com/gp/product /B01MRWTAB5