Bateria Power 10A 12V MPPT Solar Charge Controller, Intelligent Solar Panel Regulator with LED and LCD Display, Compatible with Sealed Flooded Gel AGM Lithium LiFePO4 Battery

This is the best small MPPT charge controller! Mine replaced an expensive and clunky Morningstar MPPT charge controller that had a high parasitic load and wires sticking out in all directions. With it's simple solar input/battery output wiring and LCD display, this controller has greatly cleaned up my remote gazebo security camera/LED party light/cooler configuration. Works great with it's native lithium battery charge profile (my battery is just a 40 amp/hour LiFeP04). There is no load control, so you'll have to rely on your lithium battery's protections "when the sun don't shine", but it's been working great all summer long. With less sunlight this coming winter, I'll just turn off the (unneeded anyway) cooler and it will still run my camera and periodic LED party lights.

Korrektur 4.8.24:nach einigen weiteren Tests und nachdem ich den Regler nun 2 Monate im Auto verbaut hatte, habe ich die Bewertung auf 3 Sterne erhöht. Das Gerät arbeitet schon als MPPT Regler, aber ungefähr 10% schlechter wie der Victron, die MPPT Bestimmung erfolgt auch sehr langsam.Trotzdem ist das Gerät recht gut für den Einsatz im Auto / zum Camping geeignet. Alle die wenig Platz haben und es wie ich zum Beispiel im Motorraum installieren machen damit wenig falsch. Im Vergleich zum Victron 75/15 ist aber der Preis trotzdem nicht OK, zumal man keine 2 Panele in Reihe schalten kann.

It's a simple charge controller that converts up to 120 watts of power and converts it to 12.0 - 14.4v DC for charging batteries. I like the LCD display that shows me the voltage and amperage being sent to the battery, as well as the four LED graph bars which represent percent charge of the battery.I use it for keeping my auxiliary battery on my truck charged when I'm parked and or camping.I liked the MC4 connectors that enable me to use this on almost any solar panel. I liked how it's easy to use. I liked the small form factor that made it easy to carry with the solar panel.I didn't like it when someone ran over it in the parking lot... But that's not the devices fault.I'll be buying another to replace the one that was damaged.

Really wanted to work. Liked the display which showed the charge rate. Unfortunately it started act up a few weeks ago. Now it shows the voltage but charge rate is 0. Tried on several different panels, no go.

I was disappointed that the MPPT (Maximum Power Point Tracking) function on these Bateria regulators does not include the ability to charge when panel voltage is below battery voltage. A regulator I purchased 7 years ago had MPPT that could charge even with panel voltage below battery voltage, so I replaced the simpler "PWM regulator" that came with the 175W solar panel I installed on my boat. This MPPT unit was 4x the price of the Bateria units, but is still working like a charm. The ability to charge with panel voltage below battery voltage makes a noticeable increase in the average energy delivered by a solar panel - especially in chronically poor sunlight situations.When sunlight conditions are poor (meaning EVERY morning and late afternoon when the sun gets low, and ALL DAY on cloudy days) the panel output voltage is lower than battery voltage, and simple PWM regulators (and even MPPT regulators such as this Bateria) are unable to provide ANY charging. (In fact, all regulators slowly discharge the battery under those conditions.) When needing to keep batteries of seldom-used vehicles charged in Northern latitude Winters, enough sunlight to charge may not occur for weeks at a time - and even then at most for 6 hours/day.I purchased 4 Bateria 10A units and tested them in my electronics lab. All 4 responded when voltage was applied, but none would charge unless input (panel) voltage was above output (battery) voltage.I then purchased 4 more of the MPPT units installed on my boat and put them in the same test setup. Output to charge the 12 battery was produced even with input (panel) voltage as low as 5 volts.I plan to use one of these MPPT units to help maintain a Recreational Vehicle (RV) battery during the Winter when short drives are not sufficient to restore a healthy battery charge. All will be used - one per panel - on higher-power panels (all slightly different) during my travels so that each panel will simultaneously produce its maximum power into a common battery regardless of differences in shading (common in campgrounds) or sun angle.