Solar Diodes blocking Diode MDK 110A (100A)-16 for DC;One Way Inline;Commonly Used in photovoltaics confluence, Solar Energy, Generally Used with Solar Cells and Solar Panels(MDK 110A-16)

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Had a battery drain issue. This corrected the issue

These are dumb but work well to parallel two solar arrays that do not contain their own blocking diodes

I got this diode to protect my camping batteries from the high-powered inverter that I bought. My idea was to combine the camping batteries without creating feedback on the battery while using the batteries to power the inverter. However, I greatly underestimated how much current my inverter needed and so all I was really able to verify is that the batteries were unharmed, but I can't say if that was from this diode or from the batteries on protection circuits. It seems to isolate the current, but not the voltage difference of the batteries.

So I'm pretty new to having solar and everything about the technology itself. I recently bought myself a solar all in one kit that has around 400 watts for the panels along with few batteries wires and whatnot.After some time I would notice there would be surges in either the battery depletion or the solar at night or even when charging there would be spikes that would be outside and would either reset my controller or would Trip my breaker that's attached to my system.I gathered some information and found out that I needed to have these diodes to make my solar system more stable during those spikes or unexpected occurrences that can happen at almost any time.With the batteries depletion, with this diode I noticed that my batteries didn't deplete as rapidly at night from the panels drawing power and the current coming in would be at a steady rate rather than jumping here and there with the spikes. How I knew about the spikes and what not in the current is because my kit comes with a Bluetooth monitor so I was able to actually see when the spikes were occurring and I asked about it and they told me it's not normal but it's also expected sometimes, It didn't make much sense to me but the further I did research about it the further I realized its something they don't really say when buying solar...I'm really liking the item itself It has a great heat sink and is very small so I'm able to put it on basically anywhere on the system even just before. The price is minimal for what it can do because overall it saves your batteries as well as your panels. It doesn't allow the current to reverse so what is moved forward stays there. Just something I learned as I'm beginning to be more familiar with some of the solar equipment, I hope that information helps for someone like myself.I would recommend

I putting together a battery box with a car battery, small 2amp battery charger on the battery side and then an external 10amp power supply on the other side of the diode and the load side. I want the 10amp power supply to supply as much of everything as possible most of the time, but I need to isolate the battery from the 10amp power supply. Since my max current for my project is 13 amps for about 5 minutes, then it drops to less than 4amps, I got the dual diode package instead of a single diode package. Because then I have a second diode if I want to expand my project. My current is way under the spec for either diode and I'm hopefully the package can be used without a heat sink. My initial testing was outside at 20deg F, so not a good test of heat, because its so cold I can't feel anything. This comes with a great heat sink plate, so mounting it to a big heat sink is super easy if needed. This is designed to handle current and heat. Overall I'm super happy. I'm assuming Vfo=0.8 in if Vf the spces listed which I'm assuming is the Voltage Drop spec. I measured 0.78v drop in my testing, so thats right on spec with Vfo. At my 13 amps I would have to dissipate 0.78v x 13amps = 10.14 watts of heat for a few minutes and then it would drop to a steady 3watt or less. Seems acceptable to me. Overall this is a beast of a diode with a great mounting plate for a heat sink. Its completely awesome!

If unsure what difference is between blocking diode and schottky diode, now would be a good time to do some googling (or, uh, binging, I guess). This blocking diode is heavy-duty, but not suitable for many electronics scenarios due to the relatively slow switching and recovery time. I was able to produce substantial sparking with reverse current flow and brushing wire against the terminal, but it blocks soon after; this makes it well-suited where your primary concern is the thermal issues of reverse flow (like in solar) rather than needing to prevent ~all reverse flow. 14 day forecast here is nothing but clouds, so I can't run my bigger solar panels to this to test drop in forward voltage in a solar scenario (which is where this will ultimately end up), but I'd expect around half a volt's loss.The screw terminals make this easy to wire with bare wire, with the screws being approximately the size of what you'll find in residential switches and outlets (though with this diode device, you get a washer with each screw, too). I used 14AWG stranded wire in testing and was able to get a quick and good connection twisting and "hooking" it like I would with switches and outlets.