The stabilizers run hot, the one I used I have a fan blowing on them if I plan on running more that 2 or 3 amps through them. I never opened one up but I suspect they have a small buck converter inside that can barely handle the rated output. Anything made in china, you divide by half just to be safe. If it says 10 amps, its probably better not to go over 5 amps. Especially without a fan blowing on it.
If you need something that will be running constant, you can always get a buck boost converter and put a small fan on it. I have one that I use on my fridge about 5 amps, thats been running 24/7 for almost 3 years. Just make sure its an all-in-one buck boost converter, when dealing with 12 volt to 12 volt DC-DC its the only way to keep max amps going to your devices.
buck boost converter use on my fridge set to 13.2 volts output.
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dc-dc 10 amp buck boost converter that I use (cost around 10 dollars). This is an all-in-one converter, it does the same thing that a stabilizer does. All you need is a small fan blowing on it to keep the electronics cool. These are better than the stabilizer since you can set the output voltage exactly where you want it, also the output amps can be adjusted. They work as a stabilizer/regulated output and can also be used as a battery charger since they are cc/cv with adjustable voltage/current. Note the large cooling fins, that shows how hot they can get requiring extra cooling.
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