EPEVER Upgraded 30A MPPT Solar Charge Controller Tracer A 3210AN + Remote Meter MT-50 Solar Charge With LCD Display for Gel Sealed Flooded Lithium Solar Battery Charging-Negative Grounded

Seems nice, it's keeping my battery bank happy! The instruction manual is ok, they need to specify a few things, like this must be mounted vertical as opposed to just stating the clearances from heat sink. Also the degrees are in Celsius and it's not switchable on the meter, although on the controller they are switchable. Other then those two things I have no complaints. The remote monitor is really nice! It is a must for the controller. For the money this will do everything the name brand controllers do. I upgraded from a Zamp PWM controller and am very pleased, I can tell the slight difference in that the bank is charged about an hour earlier then my old PWM controller. Plus the remote gives me way more information to stare at! In order to get the full benefit of this controller the temperature probe is required.

My first unit worked perfectly for 4 months. It quickly finds the maximum power point and does a good job recharging the batteries on my sailboat, even after running the refrigerator, inverter, lights, coffee maker, and more. It's a great unit.But after 4 months, it failed. An internal short developed, which caused the 30A fuse I had between it and the battery bank to blow. Figuring I had a bad fuse I replaced it and the new one immediately blew. Clearly I had an issue which could either be a wiring fault or a failure in the MPPT charge controller. I took the charge controller home to "bench test". Turns out it had developed an internal short to ground (from battery positive).I contacted EPSolar, who quickly sent me a replacement unit. The new unit has been installed on my boat for 3 weeks now and is working perfectly.I've been very impressed by EPSolar's warranty support and their continued interest in my issue. They remained in contact with me throughout the replacement process and even followed up afterward to be sure the new unit operated properly.Naturally I am concerned that the new unit will fail, but it is good to know that EPSolar stands behind their products with strong warranty and technical support.

I'm coming up on a year with this controller. I started off with just 400 watts of panels then expanded to 800 watts. I had a problem with my batteries running down when I got too many consecutive days of cloudy weather so I added more panels. I'm up to 1200 watts, which is above what the controller is rated for, but it still works fine. In my area, you are unlikely to ever get maximum power out of your solar panels. The controller has been sound. It was easy to setup using the MT50. Until recently I never messed with the PC hookup, but that works well. You need to be a bit computer savvy to get it to work. Once setup, it works fine and makes changing parameters and monitoring much easier. The controller seems to handle MPPT as it should. I have my panels in a 4s3p arrangement so max I've got about 80 volts and 16.5 amps. I realize it is a bit above what is recommended, but it works and I am upgrading to a bigger controller (EPEVER 50a) as I will be adding even more panels. I've read other reviews of other controllers mentioning low voltage and high current situations, but I've never seen that with this unit. It does a good job of charging my battery bank. I have 7.2kw of usable capacity. It also seems to adjust to the low light of morning and evening sun. I don't have any regrets buying this unit. I've already purchased a replacement with higher capacity and will be installing it as soon as I get the new panels mounted.

New to solar and "learning" along the way with a off grid solar aeration unit for my pond. I bought a kit off eBay and used the cheap charge controller it came with. I had no plans to replace until it died. I know MPPT chargers were suppose to be the best and more efficient but man were they $$$. This was the best value that met my needs and didn't break the bank. Based on reviews I wasn't worried about getting a fake MPPT controller based on price point. The fake ones were still way lower in pricing too which raised red flags. This controller is nice quality. I love the displays. Being able to see when the solar panels are producing, how much, battery stats, etc, etc makes things so easy and nice. Displayed readings matched my voltmeter readings so I feel good about the quality of this product. I don't have no high tech gear or recorded stats or anything to base this next statement as fact. I did go out mutiple times a day and read the battery levels with the voltmeter and off the power inverter display because this was my new toy. But since changing over to this charger IMO my batteries recover faster and my nightly check shows more juice in the tank after the sun is almost set than with the other charger. I am very happy with purchase. The remote unit is nice but is meant to be indoors as it is not weather proof so I am not using it. Learning solar is expensive!!! Lol Even with this efficient charger I'm finding my 1 100w panel isn't producing enough to run my pump and keep my batteries charged. So I'm now expanding to 3 panels. If I have to go 4 then this charger will give me that option. Just FYI..if you decided to tinker with solar it becomes almost an obsession and what looked like a not to terribly expensive project/experiment at first will begin to add quickly as it becomes almost a person challenge against Mother Nature to harness the energy you need. To quit would mean accepting defeat!!! Lol!!! I do not regret getting into this solar adventure as it is a fun hobby for me and once I get the formula right it will give me up to 3000w of power at the back of my property. Prices of panels and all the necessary equipment has come way down so what the heck. Just do your research first and I would definitely spent the little upfront cost for this MPPT controller. This was the best value and reviewed MPPT controller I found after a month of research. Debating on another solar project and will definitely be buying another one of these controllers.

The build quality looks good and it seems to function fine. The owners manual, however, was obviously written by a foreign national, probably Chinese. The result is that parts of the manual are hard to understand due to poor English language skill. Suggest they hire tech writers who can do a better job.