improved mt system greatly

Would not detect solar panels accurately, and instructions/ user interface is nonsensical.

1. Only have celsius.2. Not clear with battery status.3. Tech support asking too many questions about the purchase.4. One answer every 24 hours from tech support.5. Reasonable price6. Nice color display

Seemed good at first quit less than 2 weeks

Unit was working fine, checked it numerous times on first few days, quit after 3 days with an error no one could give us an answer to.Including the company who built it, the company we bought it from and techies.

This charge controller goes up to 15 even saw 16 v when the battery is full! It kept shutting off my inverter because of overcurrent. Because it kept fluctuating, the inverter kept turning off and on! Now my refrigerator is damaged. I chose the right battery type, but it keep overcharging.

i had some problems with a unit i got from them and they shipped me out a new unit asap, i would definitely buy again

This review evaluates the “100A Solar Charge Controller 12V/24V/48V MPPT 100Amp Solar Charge Controller with LCD Display for Parallel Battery Connections” made by TEMANK.What’s in the box: One (1) 100A solar charge controller 12V/24V/48V MPPT 100amp solar charge controller, one (1) battery temperature sensor probe, and an owner’s manual.First impressions: Heavy Duty. Well built. Easy to set up. The unit is really well built with heavy-duty cast aluminum housing that doubles as a huge heat sink. There is an active bladeless turbo fan that can also assist in keeping the circuitry cool under load. There is a large backlit LCD display that provides you with a comprehensive list of operational parameters and performance measures. The unit has all the built-in electronic safety circuitry that you would expect and require such as over-voltage, low voltage, overload, short circuit, and overheating protection. The controller is compatible with a variety of 12/24/36/48V batteries including conventional flooded lead-acid, lithium (LiFePO4 and Lithium-Ion), and AGM batteries.There's no CSA/UL/ETL safety certification for North American use and user beware there is legislation in some jurisdictions that disallow such uncertified products from being sold and used. While I understand that it is common practice in overseas products in this price range for manufacturers to cut costs, certifications are there for user safety to prevent electrocutions or fires from malfunctioning products.How did this unit perform? In one word AWESOME. I bought this unit to regulate the charging of by batteries for my inverter to distribute clean power for my small off-grid hunting cabin. I run a four 500W panel solar panel system that charges four (4) 12V/250Ah lead-carbon batteries that distribute power from a 2,000W inverter. With this system, I can run simple LED lights, a large fridge/freezer, an LED TV, StarLink internet, and charge my small electrical devices like a cellphone and laptop. This charge controller ensures the safe charging of my batteries and protects my set-up from overcharging or electrical spikes. It is nice to have clean, consistent power and not run a generator if you don’t have to, especially in nature!I am evaluating this product as part of the Amazon Vine program so I am limited to a 30-day window to submit a review. To verify the durability of this product and its effective service life, I am going to monitor this product and its performance over the next 8-12 months of use and revise my review should problems arise.Cost-effectiveness and value: Overall I am extremely satisfied with the product; it is built heavy-duty, professional-grade, and does the job it is supposed to do. At a current price of $259.99, I feel that this product is priced fairly for the quality and functionality delivered.In summary: the “100A Solar Charge Controller 12V/24V/48V MPPT 100Amp Solar Charge Controller with LCD Display for Parallel Battery Connections” made by TEMANK is heavy-duty and well-made. The money is in the quality circuitry that properly regulates the charging of your battery storage array. Long-term testing is required to verify effective service life, however, I believe that this unit is built to last. I would recommend this product without reservation.Pros 👍:✔ Heavy-duty, commercial grade.✔ Well-made and built to last.✔ All aluminum housing with a large incorporated heat sink on the back.✔ Additional cooling is available from an onboard bladeless turbofan.✔ Easy and quick to set up.✔ Easy to read, comprehensive, backlit LCD display.✔ Compatible with a variety of 12/24/36/48V batteries including conventional flooded lead-acid, lithium (LiFePO4 and Lithium-Ion), and AGM batteries.✔ Over voltage, low voltage, overload, short circuit, and overheating protection.✔ Programmable absorption voltage/float voltage/low voltage cutoff/load timer.✔ Wired battery thermo probe included.✔ Good performance.✔ Excellent price point and good value.Cons👎:✘ Not CSA/UL/ETL safety certification for North American use.

I have always used another companies controllers but I took a chance on this one because the price was less then half and I am glad I did. It is very simple to setup, use, and understand. It works excellent.

--- The Good ---Detected the panel voltage, and directed it's wattage to chargingDisplayed the battery's output voltage (charge level)--- The Bad ---No complaints--- Bottom Line ---I only have a single 24V-220W panel I bought 10 years ago to test with. It has degraded down to 170W. Given all the complaints, it's important for me to note that this may very well have problems under high load.It's overkill and over priced for a single panel (I've been using a $30 charge controller I bought 10 years ago that only works with SLA), and the 5 star reviews aren't what I'd call credible.I have no complaints using it for the single panel, but I can't speak to using it for a full roof. Thankfully, it's returnable and swapping the charge controller is extremely quick (assuming you have appropriate disconnects, not shown in the diagram for this controller; if you're trying to DIY I recommend reading some of the solar textbooks by Global Sustainable Energy Solutions, or even taking their course).

I’ve been setting up solar in my camper, and getting a good charge controller is key to making sure everything runs smoothly. I went with this 100A MPPT charge controller, and it’s been doing a solid job so far. What sets this one apart is how it adjusts the power coming from the solar panels to get the most efficient charge for the batteries. It’s way more efficient than some of the simpler, cheaper options out there, which is great because I want to make sure my setup is as reliable as possible.One thing I’ve noticed is that this controller charges at a higher voltage compared to my old one. This isn’t a huge deal, but it’s something to keep an eye on, especially if you’re using lithium batteries like I am. It does mean the batteries charge faster during bulk storage, but I’ve had to make sure I’m monitoring things to avoid any overcharging issues. The controller also has a pretty advanced cooling system with both passive and active cooling, which is awesome for keeping everything running smoothly, even when it’s hot outside.Overall, I’m pretty happy with this controller. It’s definitely built for larger setups or if you’re planning to expand your solar system down the line. It feels sturdy, the display is easy to read, and the setup was straightforward. Just keep in mind the higher charging voltage, but other than that, it’s a great option if you’re serious about getting the most out of your solar setup.

My unit was not working properly, which would have been 1*. But Customer Service was very helpful with trouble shooting and offered me a refund when they determined it was the device. So 3 more *'s for their Support team!

My brother set up his handicap van to also be a camper van. He is set up for a 12V solar-powered electricity. He likes this charge converter as it fits in perfectly for the size of his power system. He recommends it.