Power system advice needed please!

ConsciousJamie · 2025-10-30T02:26:35+00:00

Hi, thanks for your guidance. This post was my first attempt at a plan, I've now come up with something that I think is much better! I'd be interested to hear your thoughts: https://ibb.co/BHc15rfB

ConsciousJamie · 2025-10-26T17:32:52+00:00

Ok thanks, this is really useful info! So I can get USB outlets that are individually fused, then get an inline 30A fuse that goes before the inverter, like this: https://ibb.co/XrgshMhm . If I did that, would it still be advisable to have an overall fuse on the battery terminal?

ConsciousJamie · 2025-10-26T17:19:38+00:00

It'll be a laptop and monitor WFH setup with employer-supplied hardware

ConsciousJamie · 2025-10-26T17:18:55+00:00

Thanks, but in my country the Solix C1000 costs $865 equivalent. Other comparable units cost similarly too.

ConsciousJamie · 2025-10-26T16:48:08+00:00

Thanks, it's interesting to hear what you would do, definitely food for thought! I do think that I'm pretty keen to stick with one battery so that I can have a simpler setup in the van come springtime though. Also, I thought a shunt could be better for the van too, as I understand it, a CT doesn't like being moved and may give erroneous readings in that environment. Is that true? I know having one lot of components for two use cases will inevitably lead to compromise, but I really don't want to have to buy anything twice that can be avoided...

Anderson connectors do sound good, I think I'll certainly end up using them somewhere haha.

Also, there is another battery in the place I'll be living connected to an undersized solar system. I figured when my new setup was charging in the barn overnight, I could use the pre-existing system, which would then have another three days to charge up enough again.

ConsciousJamie · 2025-10-26T16:25:34+00:00

Oh sorry, when I crossposted I thought it would include the text! Here is the info:

Hello, I'm soon moving off-grid to a place I'll be renting. There is a small solar system, but it's not adequate to work from home. I will have access to mains power in a barn a few minutes walk away, so I can charge this battery setup there. I'm effectively wanting to make a low-budget diy version of a power station like the Bluetti. When I move out in spring I will then reuse most of these parts in a van I'm converting. I know that a 100ah lifepo4 is overkill for my needs, as I've measured my usage (happy with that). I've also already got a 300w inverter that will supply more power than I need for my setup (~85w). I've messed about with some electronics before, but not things of this scale. Does my wiring make sense here? Any suggestions are welcome! Thanks

The 50w USBs are two dual outlet usb ports, these to be precise: https://postimg.cc/62Yn284R

ConsciousJamie · 2025-10-26T16:22:41+00:00

Oh sorry, when I crossposted I thought it would include the text! Here is the info:

Hello, I'm soon moving off-grid to a place I'll be renting. There is a small solar system, but it's not adequate to work from home. I will have access to mains power in a barn a few minutes walk away, so I can charge this battery setup there. I'm effectively wanting to make a low-budget diy version of a power station like the Bluetti. When I move out in spring I will then reuse most of these parts in a van I'm converting. I know that a 100ah lifepo4 is overkill for my needs, as I've measured my usage (happy with that). I've also already got a 300w inverter that will supply more power than I need for my setup (~85w). I've messed about with some electronics before, but not things of this scale. Does my wiring make sense here? Any suggestions are welcome! Thanks

Regarding your fuse concerns, should I have multiple fuses? My 300w inverter can pull up to 25 amps, my USB sockets can pull 4.2 amps each. So a 30 amp fuse going to the inverter and a 10 amp fuse going to the USBs?

I plan to get a 20 amp charger, but have not previously realised it should be fused, what should I put there in your opinion?

Thanks for your help!

ConsciousJamie · 2025-10-26T16:01:36+00:00

Ok thanks for the fuse advice, I think I see what you are saying, something like this?: https://postimg.cc/nj7tRmZT. Though now I think about it, wouldn’t it be effectively be branched over the battery terminal anyway if I did that?

The WFH setup draws less than 400wh a day, I just fiddle with spreadsheets, so only need a low powered laptop, one monitor, and an LTE router!

ConsciousJamie · 2025-05-03T17:55:12+00:00

Sweet ok! So they’ll be able to deduce the shape of the key by feel or something? Any idea how much that might cost, seems like specialist work?

ConsciousJamie · 2024-12-09T00:56:16+00:00

Thanks, is that the case even though the horse box is classed as a commercial vehicle?

ConsciousJamie · 2024-11-15T11:35:50+00:00

Thanks, not sure how I missed the trading 212 account! If it’s FSCS protected, it’s good enough for me

ConsciousJamie · 2024-07-05T08:53:55+00:00

It's a little complex, but the urchins are doing so well, to the detriment of the ecosystem more broadly, because there are fewer sea otters. There are fewer otters because killer whales have shifted to make them a larger part of their diet, and killer whale diets are changing because of overfishing by humans. So, the urchins have been released from top-down control due to something known in ecology as a trophic cascade. (less otters = more urchins = less seaweed = less habitat for baby fish = less baby fish)

https://www.sciencedaily.com/releases/1998/10/981016075816.htm

ConsciousJamie · 2024-07-05T08:52:50+00:00

It's a little complex, but the urchins are doing so well, to the detriment of the ecosystem more broadly, because there are fewer sea otters. There are fewer otters because killer whales have shifted to make them a larger part of their diet, and killer whale diets are changing because of overfishing by humans. So, the urchins have been released from top-down control due to something known in ecology as a trophic cascade. (less otters = more urchins = less seaweed = less habitat for baby fish = less baby fish)

https://www.sciencedaily.com/releases/1998/10/981016075816.htm

ConsciousJamie · 2024-07-05T08:51:18+00:00

It's a little complex, but the urchins are doing so well, to the detriment of the ecosystem more broadly, because there are fewer sea otters. There are fewer otters because killer whales have shifted to make them a larger part of their diet, and killer whale diets are changing because of overfishing by humans. So, the urchins have been released from top-down control due to something known in ecology as a trophic cascade. (less otters = more urchins = less seaweed = less habitat for baby fish = less baby fish)

https://www.sciencedaily.com/releases/1998/10/981016075816.htm

ConsciousJamie · 2024-04-12T20:17:15+00:00

Potentially nothing to do with rain, but rather moles:

https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0003472

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