Charge Controllers and Accessories / Discount Offers / MPPT Controllers / Solar and Wind Energy

EPEVER 40A MPPT Solar Charge Controller Tracer AN Series fit

EPEVER 40A MPPT Solar Charge Controller Tracer AN Series fit for Lead-Acid and Lithium Batteries with 12V/24V DC Automatically Identifying System Voltage

Connect the system in the order of Battery→ Load→ PV array in accordance with Figure “Schematic Wiring Diagram” and disconnect the system in the reverse order.

Warm Tips:

Battery must be connected firstly !!!Never connect the soalr panel array to the controller without/before a Battery.
If an inverter is to be connected to the system, connect the inverter directly to the battery, not to the load side of the controller.
While wiring the controller do not close the circuit breaker or fuse and make sure that the leads of “+” and “-” poles are connected correctly.
A fuse which current is 1.25 to 2 times the rated current of the controller, must be installed on the battery side with a distance from the battery not greater than 150 mm.
If the controller is to be used in an area with frequent lightning strikes or unattended area, it must be installed an external surge arrester.

It is very important to configure the system reasonably. For the recommended maximum power of PV array for this controller, please refer to the table below:



System Voltage	12V/24V DC	12V/24V DC	12V/24V DC	12V/24V DC
Rated Charge Current	10A	20A	30A	40A
Rated Charge Power	130W/12V 260W/24V	260W/12V 520W/24V	390W/12V 780W/24V	520W/12V 1040W/24V
Max. PV open circuit voltage	100V,92V(At 25℃)	100V,92V(At 25℃)	100V,92V(At 25℃)	100V,92V(At 25℃)
Battery Type	Sealed, Gel, Flooded, User and Lithium	Sealed, Gel, Flooded, User and Lithium	Sealed, Gel, Flooded, User and Lithium	Sealed, Gel, Flooded, User and Lithium
Grounding	Negative	Negative	Negative	Negative
Max. PV Wire Size	4mm²/12AWG	6mm²/10AWG	10mm²/8AWG	16mm²/6AWG



System Voltage	12V/24V DC	12V/24V/36V/48V DC	12V/24V/36V/48V DC	12V/24V/36V/48V DC	12V/24V/36V/48V DC	12V/24V/36V/48V DC
Rated Charge Current	30A	50A	60A	80A	80A	100A
Rated Charge Power	390W/12V 780W/24V	625W/12V 1250W/24V 1875W/36V 2500W/48V	750W/12V 1500W/24V 2250W/36V 3000W/48V	1000W/12V 2000W/24V 3000W/36V 4000W/48V	1000W/12V 2000W/24V 3000W/36V 4000W/48V	1250W/12V 2500W/24V 3750W/36V 5000W/48V
Max. PV open circuit voltage	100V,92V(At 25℃)	150V,138V(At25℃)	150V,138V(At25℃)	150V,138V(At25℃)	200V,180V(At25℃)	150V,138V(At25℃)
Battery Type	Sealed, Gel, Flooded, User and Lithium	Sealed, Gel, Flooded and User	Sealed, Gel, Flooded and User	Sealed, Gel, Flooded and User	Sealed, Gel, Flooded and User	Sealed, Gel, Flooded and User
Grounding	Negative	Negative	Negative	Negative	Negative	Negative
Max. PV Wire Size	10mm²/8AWG	16mm²/6AWG	16mm²/6AWG	25mm²/4AWG	25mm²/4AWG	35mm²/2AWG

Check Offer Price

Weight:	1.81 kg
Dimensions:	28 x 20.5 x 7.9 cm; 1.81 Kilograms
Part:	Tracer4210AN
Colour:	40A
Batteries Required:	No
Batteries Included:	No
Manufacture:	EPEVER
Dimensions:	28 x 20.5 x 7.9 cm; 1.81 Kilograms
Reference:	Tracer4210AN

Tags: Car EPEVER It is

Anonymous says:

03/08/2023 at

I have 4 epever mppt’s . one 60A two 40A and one 30A.
All have there own setting of solar panels, The 60A have two strings of 6 parallel. the 40A have each 4 panels (totall 800W) of 200W. And the 30A have 3 200W panels.
They are all 4 feeding in a 800A lithium battery bank. There are 2 4000W inverters on connected. and the supplies the whole house off grid.
I am really pleased with Epever, i had two other mades but was not to my satisfaction !!
eb_author says:

05/01/2023 at

I ordered, and MTTP unit. It arrived within a couple of days along with a message explaining how to install I found the company very highly professional and answered all questions promptly. Very good, highly recommended.

5.0 out of 5 stars Very Professional
Anonymous says:

11/10/2022 at

Quick delivery and good quality product. I had a query, just from being a solar Panel novice. I sent them a video of my installation and they solved it for me quickly. Would buy from them again.
lose weight says:

16/09/2022 at

I struggle to see why anyone would buy any other charge controller other than this one, a reliable component that does exactly what its meant to do, you could buy two of these for the price of one of its popular blue brand competitors, 100% would buy again(already bought two 40amp models a 30amp,10amp and a 60amp version I love them!),build a 24v system to get the most out of it, the load output is very useful when paired with a relay(can be setup to heat water when battery is full)
Hannah Goldfield and Amelia Lester says:

27/06/2022 at

I connected a string of solar panels to this device and it used the power from the solar panels to charge my battery bank. How cool is that. Unfortunately I don’t have a video of this happening, so the illiterates amongst you will just have to get someone that can read to draw you pictures. Priced a little on the high side, for what you get, but has proven to be reliable in preventing my battery bank bursting into flames.
Anonymous says:

22/06/2022 at

Replaced a supposed mppt controller (was pwm) with this beauty and all my problems disappeared now got fully charged batteries. The batteries only supply water features in the garden but were constantly discharging with old controller this is no longer a problem wish I had just paid that bit more in the beginning .
Some people complain about the scrolling display didn’t find this a problem just press the enter button and the display lights up and you can move to the display you want that is if you cant be bothered waiting for it to scroll through. I must admit I did struggle initially with changing the load output setting but once I figured it out it was obvious maybe me just be being a bit dim. Overall impressive bit of kit.
JeromeGallegos says:

05/04/2022 at

I bought this as wanted to take my solar off my inverter/charger as the inverter, when it registered sun on the panels, would turn on which used 1.2amps per hour (costly off grid). I calculated the max amperage for my single 300 watt panel and decided on the 20amp mppt charger. I decided that due to my lack of experience with solar installation to get my electrician mate to fit it, I wanted to make sure correct cable sizes were chosen. It was incredibly easy for him to fit as it was a quick switch from the inverter and a run of cables through a preexisting hole in the bulkhead to connect to the batteries. I have not tried to switch over any settings or run the software as the default settings on the unit were fit for purpose. It’s been a year and 3 months since it’s been installed and since then I’ve swapped from 3 batteries (old and damaged) to 2 120ah wet sealed batteries and now the sun is coming out it’s been working like a charm, I’ve had my 12v fridge running and had the inverter on happily for hours and during the day I’m still able to charge my batteries and it’s only April! It’s going to be an easy summer that’s for sure. Even in the past few months, although the fridge was permanently off, I would keep electric use to a minimum during the day and in the evenings and night quite happily run my inverter for hours at 2- 4amps an hour. Registered in darkest months roughly 3.5-4.5amps going into battery from mppt charger at peak daytime and today with sun highest point in sky saw a solid 8.6amps! Well chuffed hence what prompted this review. As I said, used a professional working electrician to install and source cabling, I haven’t changed any of the settings as it detects most things and my batteries are flooded which is what it’s set up for. So I say: IF YOU WANT SOMETHING TO DO A SIMPLE THING LIKE TAKE THE SUN FROM PANEL, MAKE IT INTO AS MUCH POWER AS IT CAN AND SEND TO YOUR BATTERIES. IT’S PERFECTLY FINE. I personally don’t trust some of the more fancy specs of mass produced items as they are usually not fit for purpose. E.g. my inverter/mppt charger that is totally not fit to run solar but as an inverter, fine for running up to a 1000w but that’s all I need. Same principle applies with this solar charger, I’d have my money that if you wanted to add this to a complex system, or with a large amount of batteries or to make use of some of the more intricate settings I’d reckon you’d come into some trouble. But then again, I weren’t far behind on amps coming in during December as a friend of mine who has a pretty nice Victron system with 3X as many batteries and 2.5X amount of panel wattage! Which.is.not.bad.
Anonymous says:

06/09/2021 at

I recently had the misfortune to be ripped of by an eBay seller.. Ordered what was advertised as an MPPT unit ( in the same box as this one ! ) but it was an cheap PWM knock off.
I should have come straight to Amazon 🙂
The unit is as advertised and has been working perfectly since I fitted it..
Happy to recommend this produc
JoseEsp says:

23/03/2021 at

As others have found, the terminals are slightly fiddly for inserting cabling.
Also by using a piece of paper next to the screen to reflect the surrounding light, it is easier to read the poorly lit screen.
So far its seems to be working well at charging the batteries.
Anonymous says:

08/03/2021 at

A well made and sturdy looking MPPT charge controller made from high grade plastic and aluminium that feels like it will last a long time. There’s plenty of surface area on the back for cooling, which gives me confidence in its ability to handle the electrical current generated on sunny days. The customer service I received was also very responsive, sincere and helpful.

5.0 out of 5 stars Well made, good customer service.
Anonymous says:

12/11/2020 at

The Epever was very easy to install and didn’t protrude too far, unfortunately my solar PV power was too much for this one and I needed the 5415AN… But for PV voltage up to 100v and 20A then this is fantastic especially paired with the wireless adapter…
Plenty of online guides for help setting up and epever customer service are very responsive
AnneEbnerra says:

12/09/2020 at

Bought this for peace of mind and to make sure we have enough battery power at the end of the week to be able to use the motor mover after being off grid for 7 nights. Very robust product with clear backlit display when required. Now that i have added the MT50 monitor from the same people,i can set all the parameters for the charger and select battery type. I bought both from vfound eu in China and both products are wort the wait. V Found EU have been fantastic to deal with and wouldnt hesitate to purchase from them again. Email communication was superb and they supplied tracking numbers and the name of the delivery company instantly. Once again thank you VfoundEU
Denis Bedoya says:

10/12/2019 at

I have been very impressed with this controller. It is solidly built and seems to charge the batteries very efficiently. (I am using 4 x 100w panels with 2 pairs of parallel panels connected in series to give me an output of roughly 40v 10A) However this controller allows for other configuations should you choose (eg. by having all in series or all in parralel) The LCD display also allows you to monitor the solar input, battery status and amount of load, by repeatedly pressing select. I have also been very impressed with the Customer Service provided by the supplier, and although I had some issues, they have responded very quickly in sorting everything out. Much appreciated and highly recommended.
Anonymous says:

01/12/2018 at

UPDATED 19/12

I originally wrote a one star review based on the failure rate of the MPPTs, but after several emails of the company’s customer service I came to the conclusion that said failures were caused by installer error (myself), rather than poor manufacture.

Because of said error, I cannot attest the function of the product (an I invite you to read other reviews in that regard) but I can confirm wholeheartedly that the company pays attention to the customer and tries solving any problem that might stop you from using the product. Which is in this time and age a rarity.

(I opened the unit in my possession and I can confirm that the electronics, heat management and manufacture are high quality).

5.0 out of 5 stars Very good Customer Service.
Anonymous says:

12/11/2018 at

The product arrived a few days after I placed the order. I also purchased a “EPEVER eLOG01 Record Accessory Adapter” so that I could monitor the performance over several months, and the EPEVER /Epsolar Solar Charge Controller Accessories” — two additional cables — so that I could monitor the system on a laptop of android phone and put the electronic thermometer into the battery compartment in the engine room.

I followed the instructions and it was easy to install. It appears to work well — although this is my one and only installation so I have nothing to compare it against — I do have a sophisticated battery monitor (that uses a 200am shunt) so I can cross check the readings on the Solar Charge Controller and they agree.

One thing that the controller manual does not make clear is what voltage is output on the “load terminals”, indeed the manual does not make it clear what the load terminal are for! As I wanted the solar system to change the batteries on my narrowboat I have ignored those “load” terminals. If I could I would remove the load monitoring from the display.

The reason I have given this a four star rating and not a five star is because the computer software installation is poor. I have a Microsoft Windows 10 laptop and I would expect all software for Microsoft machines to use the standard Windows 10 installer. Instead this software seems to use something that is probably compatible with Windows Vista. The software comes in a “.rar” file which is not compatible with the standard Windows 10 file explorer (I used 7-Zip to access the files although winzip will probably work as well). Once extracted there is not one installer but two. The first installs the drivers and the second installs the software. This is very old school. Normally such software would be web-based but with a simple installer that would check for the version of Widows that is being run and install the appropriate software from the website and it would include an uninstall option to clean up the computer if the software is no longer needed or proves to be buggy.

After some messing around I was able to install the software and it works, but I suspect that most amateurs who install this product, will not be able to get the PC software working, and will not understand the error messages they get about device drivers not working. It is a shame because with a modern Windows 10 installer this useful interface would be much more easily accessible.

The controller also works well with “EPEVER eLOG01 Record Accessory Adapter”, but I did come across one glitch. I disconnected the solar panels from the controller to install another solar panel. When I reconnected the solar panels to the controller it registered the reconnection on the display panel, but it failed to update the information into the adapter. I had to unplug the cable that connects the controller to the adaptor before the data started to flow from the controller into the adaptor.

So 5 out of five for the controller, but 3 out of five for the computer software.