Giving you all some feedback with the power pack battery that I bought from Amazon. I was running a Jebao DC wave maker and it lasted for a good 5 hrs. Yes, from 10:30pm to 6am , I woke up 3-4 times worrying that my fish would die. I switched it to the battery powered aerator until the power went back on. All the fish survived but it was exhausting. I'm returning this power pack for sure, it wasn't designed to last more than 8 hrs.
If MoonDoggy's suggestion works, I'm going to invest in a Sealed Lead Battery (SLR) and a battery tender/charger. So, how long will a 12V battery good for operating a small DC wave maker?
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