EPEVERTemank Solar Charge Controller MPPT 30A 12V/24V Auto, Solar Panel Charge Controller Max 100V PV Negative Grounded Solar Regulator, for Lead-Acid and Lithium Batteries

load connection not for inverter what is it good for.

I just purchased a new RV and needed to add solar charging as I had installed on my old RV.I was a little skeptical when I purchased this Solar Charge controller since I usually try to stay with US built products. I most always get better service and quality from US companies and a better warranty. After looking at the cost differences between the China built product and what I paid for my first solar controller "US product" I figured what the heck! I'll give it a try. And I gotta tell ya, I am impressed with this MPPT 30 amp charger! I roof installed the exact same two 7 year old 140 watt solar panels. I actually moved the same (3) 105 amp hour deep cycle batteries I had just purchase for the old RV about 6 months ago to the new RV.(Cheap sob's) only put 1 small deep cycle in the new RV. So I am pretty much comparing apples to apples except for new wiring with the same size 8awg wiring I had in the old rig. The only major component changed was the Solar charge controller as the old one was not designed to be located with a separate monitoring panel and I could not find an ideal location for it. Long story short this EP Ever 30 amp MPPT charge controller charges better than the old one with the same solar panels. The old controller was also and MPPT controller but the best I had ever seen was about 8.5 amps on very low batteries. I have seen as much as 12 amps charging with this new controller with the same (7 year old panels). It steps down through the charge process just as it should and if left on it maintains the batteries properly and also sleeps and wakes up properly once the sun rises just as it should. I do a ton of off grid backwoods or desert camping and as long as it holds up? I will be a happy camper watching the nightly news or a movie without firing up the genny... :-) Only suggestion is make sure you get the NEGATIVE Ground model if you are in the US...

Wow this unit is awsome! Was only getting about 4 to 5 amps out of my old pwm charger with two 100 watt windy nation panels. Not quite enough to keep you going dry camping unless you were in full sun all the time. I ordered this unit and wow! 10 to 11 amps in cool sunlight. It also regulates amazingly well. The minute you get a load it kicks up to fill amperage, the minute the batteries are up to around 13.5 volts it starts to scale back to around 1.5 to 1 amp. Also the remote meter is awsome! No more going outside to check what's going on, this unit gives you all the readings and you can also control the unit from the remote. I would have given it a full five stars but the remote cable is way too short. Just buy a normal Ethernet cable and it will work. All in all I highly recommend this unit!

June 2, 2020 Purchase date:Item did what it was supposed to do.Easy to install.Recommend attaching a small maintenance battery (12ah) with battery switch so the main battery bank can be disconnected for maintenance or relocation.This way the system can remain fully connected (as require) and avoids the need to disconnect solar panel wires at charge controller point.May 2021: weak and unimpressive wire terminal connecting points on unit.Problem occurred just before one year mark:One of the terminals, specifically the negative connector from the solar panels, failed.The inner screw mechanism/clamp mechanism failed.It is unknown how this occurred.Discovered when power zeroed out from panels. During a maintenance inspection the wire was observed still inside, but not fully connected to the terminal. Given the impression that it was still connected from a distance official inspection.Generally, terminal connecting points On charge controllers have not been very robust on a number of units, including this one. Renogy, had very cheap plasticky look and feel, which also failed. Returned that one got the Epever Tracer 3210 AN here.Other complaints on the solar charger connecting points having three holes are too small, and are not easily work with other wiring going down stream away from the controller.This connecting point is no different. It appears that the inner clamping mechanism failed.This is complicated even more because you cannot see this connection embedded inside of the device. So you have to blindly shove a strict end of your wire into a hole hoping that the clamp in mechanism Titans around it for you over tighten the mechanism because it past the end of the wire. Giving you false sense of security.Abetter design would be to allow the user to see the entire terminal mechanism area. Which can then be covered with a separate cover as part of the unit.This weekend is your can observe the terminal connecting point watching the small clamping force rules lol come together while connecting wire.At this point the vendor will be contacted, or the manufacturer, requesting a replacement for a proposed workaround for this problem.He posted photographs here show an improvised solution for now, using a small alligator clamps to reach inside the small holes to complete the connection while I work around or replacement is sought.if vendor or the manufacturer does not recognize this repair or replace a request. A particular workaround would be to open up the unit and solder in an extension piece of wire bring the connection and the wire outside of the box for connecting to the rest of the wiring to the system.

I was initially very happy with this product. I installed it into my trailer running power from a 265 watt panel to two 100 amp hour batteries. Everything worked great for a little over a month. However now the controller has failed. It reads only 11 volts coming from my panel. I initially thought it was a short in the wire but I've unhooked the wires and put my volt tester on it and it reads 30 volts right up to the controller. So I called up customer support and they apologize and said they'd send me one because it's under warranty. Thought I'd get it in two days like I did the first one, nope. Going to take them 15 days to send me a new one. I live in my trailer full time and now have no power or running water because this product failed and they can't send me one faster. I called customer support again and told them I wanted one faster. They informed me that they could not send one from the Amazon stock because it is under warranty so it has to come from the third party manufacturer, to Amazon and then they can ship it. Even though they have them stocked on the shelf. I was told I should buy a second one that'll be here in two days and use that until the warranty one comes in and then return the second one I bought. Nothing like being told you're going to have to live without power through the holidays or spend another $140 just to have power for the two weeks that Amazon customer service has failed on.