Renogy Tracer 4210 40 Amp MPPT Charge Controller, 12/24V 100VDC Input
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- Advanced maximum power point tracking technology to optimize the use of the PV system.
- Peak conversion efficiency of 97%, high Tracking efficiency of 99%.
- Electronic protection: PV array short circuit, Over discharging, Overcharging, Load overload, and Load short circuit.
- Reverse protection: PV reverse polarity and battery reverse polarity.
- Corrects the charging and discharging parameters automatically, improving battery life.
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|Manufacturer Part Number||RNG-CTRL-MPPT40|
|Package Height||3.9 x 7.4 x 10.6 inches|
|Shipping Weight||5.7 pounds|
Description MPPT circuit solar controllers are considerably more elaborate than PWM. The voltage of the solar panel changes with time of day and temperature. The optimum voltage for battery charging changes as the state of charge of the battery. The MPPT charge controller matches these voltages and can result in 30% more efficient transfer of power. This means good MPPT solar charge controllers can reduce the number of solar panels needed by up to 30% - a tremendous benefit. While only a small part of system price, a MPPT solar panel charge controller can leverage the rest of the system to better performance. Specifications Negative grounded Nominal System Voltage: 12V/24V Auto recognition Max. PV Input Power: 400W (12V), 800W (24V) Rated Charge Current: 40A Rated Discharge Current: 20A Max. Solar Input Voltage: 100VDC Self-consumption: <10mA (24V) Maximum Battery Voltage: 32V Charge Circuit Voltage Drop: ≤0.26V Discharge Circuit Voltage Drop: ?0.15V Communication: TTL232 / 8 pin RJ45 Warranty Information 1-year material warranty.
Top Customer Reviews
I gave this unit 4 stars due to the missing screws on the pcb (only 1 of 4 had the screws in it), the sever lack of serviceability on the 3 fuses, and capacitors, and the incredibly bad thought they did by potting the capacitors. This is the worse thing I have seen done! If there is a failure, the top can not vent through the safety release, and the walls can not expand. If it gets to rupture pressure, it will explode and destroy the board!! This is not from Renogy, this was done by the manufacture. If you use this correctly and had good batch of capacitors this should not be an issue. PWM does stress capacitors. I was not able to get ratings off of them to see if they oversize them to compensate for this.
Other than those issues.. I do like this unit. The surface area for cooling looks very well. Inspection of the surface mount components looks to be of good quality. I did not find any cracked or still having the beads in the joints. The board has a nice even conformal coating which will make this board have much longer lifespan. The transistors have full electrical isolation from the shell, very nice touch. The mounts on them are isolated as well and have a locking material on the heads to prevent them from backing out.
Another thing I really like was the negative buss bar to all 3 ground terminals. It is very thick and tall. This bar will handle 40 amps with no problem all day long. This also allows me to use any ground point at any time. In the pictures it appears if the wire was to tall it would short positive to negative, this is not the case.. With the case on, it has a built in plastic bar that goes right down to the board to prevent this from happening.
The MPPT is very fast and precise on this unit. Having 2 c.c. power supplies I watched it hunt. It was very fast in finding the max current and voltage. It also kept searching after locked. The search was very small deviations and did not affect its performance. When a 3rd c.c. power source was attached it found the MPPT point and locked quick and kept searching. This units MPPT is the fastest and most accurate I have seen. The small deviations for search after lock appears to be +/- .3V - */-.25A
I did get the head unit for this, so I can not advise on how hard it is to program though the case buttons.
Remember... This is 40 amps max not a 1000 watt max, with 12 volt system it is good for 500 watts, with 24 its 1000 watts. The manual recommends 800 watts max solar though.
Gel Cell biasing option for charging--Works well, controls both current and voltage very well. Works with AGM and Flooded also.
Remote Panel (optional) has some use but a better choice is a LinkPro battery monitor.
Compact, and has mounting flanges for vertical mounting.
Wire terminals suck. Be sure to use ferrules crimped to the ends of your wire, or else solder them. The clamps will damage the wire. I used 10 ga wire from my panels, with soldered tips to terminate and upgraded the wire to 6 gauge, to connect to the battery, mostly so I could terminate them better.
Update: I now have 6 - 100 watt panels and 2 - 50 watt panels wired series / parallel for a total of 700 watts to the controller. It is handling it just fine. As you can see the panels are doing an easy load of running a 110 watt load on my inverter at only 14 amps of solar power.
Most Recent Customer Reviews
Suggestion 1: You can attach a "bare wire" cable into the Tracer, but the Tracer's ports are just screws...Read more