ACOPower HY-MPPT30A Charge Controller is used for off-grid system, High Efficiency 98% with MPPT,Multi-function LCD displays system information intuitively.
•Multiple load control modes: manual control, lighting ON/OFF, light On+Timer
•Advanced Maximum Power Point Tracking (MPPT) technology, with efficiency no less than 99.5%
• Wide MPPT operating voltage range.
• 12/24VDC automatically identifying system voltage.
• LCD display design, dynamically displaying tool's operating data and working condition.
• With RS-485 communication bus interface and Modbus communication protocol, it is available to meet various communication requirements
• Available for PC monitoring and external display unit connecting like MT50 and so on, realizing real-time data checking and parameters setting.
• Ultra-fast tracking speed
• Accurately recognizing and tracking of multiple power point
• User programmable for battery types, load control etc.
• Common positive grounding design
• Rated charge current: 30A
• Battery voltage range: 9V~32V
• Max.PV open circuit voltage: 100VDC
• Max.PV input power: 12V/390W,24V/780W
• Enclosure: IP30
•PV short circuit protection
•PV reverse polarity protection
•Battery over voltage protection
•Battery over discharge protection
•Battery reverse polarity protection
•Load overload protection
•Load short circuit protection
Significant upgrade from my PWM power charger. Vendor support so far isn't great though. I've been trying to get information and setting it up for AGM batteries but haven't gotten information back yet, sigh
I purchase this controller (30 amp version) to build an off grid solar power box. I'll be using this to charge two optima yellow tops (I had them) as part of an off grid camping power and ham radio field day power box. In the future, I want to purchase a small trailer, so I up sized the controller a bit to allow me to simply move the controller, etc over to a new setup without needing more equipment.
Based on my calculations from the solar panels (running at 51v @ 1.91a) the battery was charging at 14.2 volts and 5.96 amps, that gives me about a 92% efficiency rating from initial checks - but - that number may change a bit, as my batteries were nearly fully charged (I'll post an update in about a month when I've given the setup a full workout while off grid for a weekend) The batteries will go down after being worked overnight and that'll be the first solid test that I'll be able to perform. Also when looking at the efficiency curves shows in the PDF manual (available from EP Solar's site) it appears that I am pretty close to right in the money!!!
All said and done, I was able to use this as part of a system (108 watt) solar off-grid charging setup that I was able to build for under $500 - and one that can also be significantly expandable! Only thing I "wish" it had was a back light for the screen, but, not necessary, but, it would be nice also (but, very nice for someone who has this inside)