1200W 20A DC Converter

Works perfect for my need, boosting voltage from 12.3 to 14.5 and holds it right on the number when loaded. I'm not loading but about 8 amps that's only at start up after that to 2.5 continuous.

Just powered up unit, minimum load seemed to hold up well. Good cost and value. Happy with purchase.

Be aware that max output power is based on the voltage input. This is noted in the product description. Fuses on boost step up supply are 15A fuses. I'm using it to boost 12.5v to 48V for POE injection for a network. Has a low battery cut off, which is nice for battery fed applications. Min voltage is 10Vdc, which is still OK for 12.5 batteries. Found more detailed directions for set up on line...vendor should provide that with the product. It arrived with zero instructions.

I have purchased two of these and neither one of them worked. I am very familiar with buck boards and I have never seen one that doesn't work at all.

using this to charge a 60V ebike battery from a 12V automotive source. i tried the 1500w and the 900w drok and this is the only device that worked for me. recharges battery at 3A max (user adjustable) until 67.2V limit (user adjustable) is reached, then holds voltage at 67.2V as current declines. i will probably add a quiet 50mm fan since the heatsink was approaching 130f at 70f ambient under this load. the unit has a 2-pin fan connector and holes tapped in the heatsink to allow for fan installation.

Just be sure to power up the unit FIRST, then turn on the load. I'm using one to get the 19 volts I needed to power a Beelink SER6 mini PC I use with portable ham radio. It's been perfect. This unit is overkill, for sure. But for the price, who cares? 😊

holy crap its still working special note on this.Do not have under a full load while turning input on (input current can spike to 100 amps and the main mosfet blows out)Avoid setting low voltage protection below 11.2 volts (see line above)Just because the low voltage protection light is on does not mean it is not working at all but just at a lower rate (less heat)Be sure to use both input connections for + and - at a high current output like 10 amp or more (one can result in input post melt down)At max current output keep an eye on your input wires and make sure they dont melt down from 40+ amps of current (yes 40+)If you want to keep this working at a max constant current replace the heat sink with something 2x the boards size a 200mm x80mm x40mm would do the trick and use a fan youll need it.I bought 2 of these from ebay and had a problem from day 1 with them and had to replace the main mosfet 3 times in both of them after the 3rd time they blew for no good reason i scrapped them and bought this one but those 2 did teach me a lot on some dont do's.I use this on low sun days for solar energy charging my Lithium battery packs low sun days do not produce enough voltage to get the packs charged so gotta use something and this works just fine as long as they are kept cool (below 70C) and not under a load when i turn on the input and have the low voltage setting no less than 11.2 volts.The Default heat sink is most certainly not enough the main mosfet and the other mosfets produce to much heat at a constant high current (around 22amps) and conducts the heat to the board heating every single component that is on the board so try to keep it under 70C to avoid any hiccups and small component fails. Thats be best advise i can give for these.Update 11-11-18 BLOWN yep not working anymore these things are totally NOT RELIABLE im so fed up with having to repair these things I put a shottky diode on the output to prevent it from getting reverse current from being hooked up to a battery to charge them so far its been stable but at a loss of 3 amps charging current reducing it to 17 amp max constant.

I am using this product to solar charge an e-bike battery. The solar panel puts out 20-22 volts at 5 amps and I set the DC converter for 53 volts. I use a "Crystal Lite" drink mix container to slide this converter in and since the container is clear - I can see the small LEDs on the DC converter. This also beats the "made for" box cost. The heat sink fins stay on the outside. This DC converter can handle more power than what my portable solar panel can give but, to just wheel out somewhere and set up a charger - this does fit in a backpack.

This is a high power DC to DC buck boost convert with constant current and constant voltage setttings that work properly. Nicely constructed and electrically and mechanically robust. I did not test it to its limits (voltage and current) but for my application it worked fine at roughly 1/2 its rated power.

Using this with a 12.5V 175 watt Xbox power supply to charge a 20AH 12.8V lifepo4 battery. I set it to charge at 14.4V 10A and have done two full charges so far while watching an ammeter get to 0 before turning off.I'm also planning on using this in my vehicle instead of using the Xbox power supply(my vehicle doesn't always put out 14.5V). I followed instructions and advice of other reviews to set the current to zero and adjusting up after you start charging. As others mentioned it does get hot so a fan is probably necessary.Unsure of the longevity but hope it keeps kicking, it will mainly be used with/in a diy battery box for camping.

Works perfectly for my project. Building a Bluetooth speaker which the amp requires 36 volts to function at its peak, I'm using an 18 volt Milwaukee battery. Currently at its testing stage with great results.

Super merci !

Very usable For me personally, I consider that