Review on 🔌 High-Power 12V DC to 15V/15A Waterproof Step-Up Converter" by Steve Stone

The title says "Buck" but the description (Boost 12-15V Buck amp) is indeed correct. You take a 12V DC input (9-13V) and boost it to a 15V DC output. All but one (which may work well but I was afraid to test/use it because it arrived damaged. More on that later) units have been tested well. I look forward to incorporating them into a sophisticated charging system comprising a bank of 6 Maxwell 2.7V 3000F ultracapacitors powered by a large 12V LiFePO4 battery. One of the units I bought was damaged so I contacted the seller for help and they got help in just minutes (less than 5)! They were very helpful in resolving the issue and as mentioned were amazingly quick. I will definitely be contacting SMAKN for more devices I need for future projects. PS: I know it looks like it, but that's really not an ad review, they're really good. If you need them, please feel free to buy them.