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Portable Battery Bank

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Hi all,

I'm looking at buying an off-grid property and building a cabin and likely a few other buildings there over the next decade or so. The cabin will have a small solar system with batteries to power a fridge, lights, etc.

During the build I'm obviously going to need some power tools up there, circular saw, a chainsaw to clear the land, drill, reciprocating saw, etc.

At first I had my heart set on a Makita 18V cordless combo kit. You get a couple batteries with the kit, and they can fit in any of the tools. But then I remembered all the cordless drills I've encountered in my life that are deemed useless because their batteries have run down and can't be replaced. What a huge waste. Do I really want to tie my self-reliance to Makita's battery technology. What happens in 5 years when they come out with a new battery design and I can't replace my batteries. My tools are essentially worthless. It's just another form of planned obsolescence.

Meanwhile my Dad's corded circular saw and drill that he has had since the 70's are still working just as well today as they did back then.

So I would love to go with all corded tools if possible. The problem is I'll likely be building all over the site where I won't have access to mains power.

But then I remembered that I'm going to be buying batteries for the cabin anyway. So why not design the cabin's solar system in a portable way, such that 90% of the time they are inside the cabin, powering lights and a fridge. Then when I need power elsewhere I can unhook the batteries and inverter from the cabin, and wheel them out to another part of the property to give me power where I need it.

Then I can go with all corded tools, saving me a bunch of money and hassle down the line.

I'm wondering if anyone here has any experience with something like this? Anything I should be concerned with (vibrations are bad for the batteries maybe?)

Thanks for your input, I'll be sure to post pictures when it's up and running.
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Location: Michigan
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A golf car could be an ideal mobile battery and all it needs is an inverter and a charging cord connector. Then power tool use within 100 feet of the car is no problem, chainsaw, pumps, lights, woodworking tools, etc.

A generator inlet on the building electrical is convienient for the ac side.
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This is the entry model. They go up to 3000
Also the owner and company do great work in underdeveloped countries. It doesn't say much about it on the website Point is you will be supporting a good company and also getting a good product IMO.
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When it comes to seeking an alternative power source in remote area, recreational vehicles can turn out to be the best option. They have portable solar panels that can be installed on your vehicle. Not only it powers your appliances, but also offers you freedom to move from one place to another. You can keep all your equipment in your vehicle, making it easier for you to transport from one place to another.
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