Recent content by DXHum

So I am rewiring a battery backup and I've run into an issue... Previously, everything was wired up with 4guage. But in my new wiring plan, I have incorporated a 15amp breaker on the negative battery terminal. But the lugs on the breaker are too small for 4guage. I could use something like...

I wondered why grounding the battery negative is practiced. Isn't an in line fuse off of the negative terminal all you need?

NEC: National Electric Code. I thought that might be it. ;) Yes! That is exactly how I'm using it; stand alone power supply charged by the grid. It is a backup that supports the tank until I can roll out the Honda. I have an alarm on the system which notifies my phone if the grid drops. But...

Thank you for the detailed reply and guidance. When I discovered that the two lead-acid batteries were dead, I went out and purchased two more, as they performed well for my application. Unfortunately, I can not return them. So I will have to work with these, and upgrade the batteries when...

Just checked out your build; I am impressed. The (2) lead acid batteries I will use, I plan on placing inside a plastic milk crate which will rest on a pair of 2x4s on the metal base of the rack. I've already run 10 gauge, solid core from the water main to the rack location. My plan is to...

This rack has all of my electronics for a large salt water aquarium. If I ground the entire rack, can I use it for this purpose? I plan on building something out of wood, because a metal rack for this purpose just doesn't feel right. Unless I get feedback from the more experienced users saying...

Yes... it took about 5 pounds of baking soda and a gallon of water before it was safe to dispose of.

Yes, I have come to learn that these batteries aren't the best choice for the intended application (power storage for when the grid goes down). But, they are purchased and installed, so, I'll work with whatever they can give. I'll upgrade them to a battery better suited for power storage next...

It was fully charged with a 10 amp NoCo. Then I put the 1.25 amp tender on it. It was when I took the tender off and just let it sit with a meter on it, that I saw the voltage drop I described.

So you are saying that I can use these batteries down to 6 volts? That would be 50% DoD, wouldn't it?

I have a fully charged Lead Acid battery. With the battery tender on it, it reads 12.9 volts. When I take the tender off, it drops to 12.7 volts. And after 15 minutes, it dropped to 11.7 volts. But now it sits at 11.7 volts for the last 4 hours without the tender. Why would it make such a...

Yes, finding information on these batteries, including on their website, is limited. When I purchased them, I asked the sales person how many amp hours the battery was rated at. They couldn't tell me because it wasn't listed on their website. I found them to be rated at 65 amp hours. So I have...

And by "cycled", you mean running them down and then recharging? They currently sit as 13.4 volts. I'm thinking I'd like to hook up a load and run them down to about 12.5 volts and recharge. Is that a "cycle"?

Well... I've already purchased them, and I can't bring them back. So while they may not be ideal for reasons I don't know/understand, I've made the commitment.

With lead-acid batteries, there is no "set it and forget it". It only took 4 or 5 lead-acid battery deaths for me to learn this simple lesson. These batteries are for the long-term storage of power. I just invested in two brand new lead-acid batteries ($100.00 each) and I would like to get a...