12V 240W DC-DC Converter Voltage Regulator, Step Down 24V to 12V 20A, Waterproof Module Power Supply for Golf Cart Accessories, Club Car Transformer

Found a youtube video that uses this device from your deep cycle batteries to charge my portable lithium power station without using the 110-volt box that came with it. That way I can use my solar system to charge them.

Easy to install and works as expected.

I tried to use this to make the ic-705 happy but as it turns out this gives me an S9 pure nasty noise. I can’t blame it though really, it does exactly what it’s designed to do.

I'm reviewing the 12V -> 19V 5a converterI have a bench power supply and a load tester to test it out.My final use case is powering a portable mini-projector (which has a laughable "up to 2 hours" internal battery, which in reality doesn't last through a 1.5 hour movie) from some 12v batteries. The projector uses about 60w when charging/running.The bad:I wish this had a voltage range input. The 12v batteries can be anywhere between 11v - 14v. That's probably OK ... but who knows? A spec would be nice.Apparently their "smart chip" doesn't prevent low output voltage if the input can't handle the load. I limited the power supply current to see what would happen -- rather than shutting down, the converter just put out lower and lower voltage (and made a buzzing noise as it tried to keep up). In reality, this is probably fine. The sources I plan on using will have no problems with my 60w use case.The decent:Voltage output was 19.2v with no load, but dropped to about 18.3v with any load applied. It would be nicer if it kept the output to 19v.The good:Measured efficiency was between 92% - 96%. Nice to see it can at least reach the advertised numbers, and 96% is a great result!I didn't measure output ripple, but the output stayed pretty consistent across the range I tested: input (11v - 14v) and load (0.5a - 4a). The load tester I have isn't designed to test ripple, and I didn't really try. Eyeballing the voltage meter looked like the ripple might be fairly high (maybe 0.3v) -- but that's a terrible way to measure ripple.

I order the DC 8V-40V to 13.8V 10A 138W buck-boost DC/DC converter hoping it could maintain line (variations in input voltage or Vin) and load regulation (output VDC [Vout] and ADC). I have an application at work this would be good for, rather than designing one from scratch (I work in electronic engineering for an automotive charger manufacturer). This device is only 13.80VDC open circuit (no load). With 1.00ADC and either 13VDC to 26VDC connected, drops to 13.76 and 13.54 respectively. Continue loading and it just gets worse. At Vin=13VDC, Vout = 13.63V/2.0A, 13.27V/4.0A, 13.12V/6.0A, 12.97V/8.0A, 12.84/10.0A. At Vin=26VDC, Vout = 13.18V/2.0A, 13.15V/4.0A, 12.98V/6.0A, 12.99V/8.0A & 12.88V/10.0A. Terrible load regulation, but ok line regulation, except at 2.0A where line makes a big difference (it's not linear). If you need one with an output to hold very close to 13.80VDC, maybe find one with a voltage adjustment potentiometer. This one doesn't appear to have a good circuit feedback to the primary side control.

The item arrived on time, within 24 hours. I connected the wires and it works perfectly. Couldn't be happier!

I'm using this regulator to control the voltage output on a solar panel generator system. The output voltage from the solar battery charge controller is anywhere from 13-16 volts depending on the sun. This little regulator caps the voltage at 12.29 volts DC which is what I needed for my remote security camera. Three amps is plenty for my application, it does not even get warm.I like it!

I used this in my PC to step up my Laing D5 Strong water pump to 24v and it has been running strong for going on 2 years now, with heavy use.

ADD an Inline FUSE!This transformer works well but doesn't like current inrush all that much.

Used on Emmo G5 E-scooter to reduce 48 V to 12 V for lighting system and horn. Unit is located in front near steering column.

Good

Cart golf

Pour un car de golf j ai optimisé l ensemble de mes batteries 48 volts pour mon système électrique