diy solar

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  • Post in thread: My Portable Solar System: Poorly designed, over-built and under-powered

    Has about 825 Wh of usable power and about 650W of continuous AC output. The door on the left has wires for the solar panels, and the solar input is displayed on the left screen. The right screen displays battery capacity. The right door has wires for an external AC charger. Main components...
  • Post in thread: Galvanic Corrosion

    ? Well, that's embarrassing. Yeah, that... that pretty much explains everything.
  • Post in thread: 2 beginners questions

    From an Amazon user:
  • Post in thread: New Maxoak Bluetti 2400Wh EB240 came with a new AC charger

    My new Maxoak Bluetti 2400Wh EB240 just arrived and I was surprised to find that it comes with a new AC charger that puts out 220W DC. The Amazon page still says that it comes with a 160W charger. Not quite as good as the 450-500W you can get from DIY solutions or solar, but I'll take the 37.5%...
  • Post in thread: ShunBin Battery Packs: 12V/24V 100AH and up ! A Complete RIP-OFF ! AVOID

    Don't know if this translation is helpful, but here you go: Also, I think it's very disingenuous to condition the refund on removing the review.
  • Post in thread: My Portable Solar System: Poorly designed, over-built and under-powered

    Thanks, man. Apparently, some vape pens use 18650s. But maybe we can make a 36V hookah that could use these battery packs. One of the packs I got had a voltage of about 12V. I'm guessing the BMS was bad. The seller immediately sent a replacement and didn't ask for the original back. So I...
  • Post in thread: Please check my EG4 / WZRELB system

    EG4 Batteries x 3 2/0 AWG Welding Pure Copper Cable (connected to oposite ends of the battery bus bars of the cabinet, but I haven't connected the batteries yet) 300A T-class Fuse (cover removed) Smart Shunt (cover removed) 7000W WZRELB Inverter 25A Charger (bought locally but similar to the one...
  • Post in thread: Can I run a 115v fridge from 110v?

    I finally got the Bluetti 2400Wh. I used a 50' AmazonBasics 12/3 SJTW Extension Cord, a watt meter and a 1000 watt electric burner. The voltage went from 110.10 to 109.25 when turning on the burner.
  • Post in thread: Battery Cable question.....

    How about 50 amps from the batteries to the inverter for a short distance (like 2 feet)? I had used this chart that recommends 6 AWG, but other charts are more lenient.
  • Post in thread: Bluetti solar panel confusion

    It may have OVP, but I was concerned with investing in panels that the Bluetti wouldn't accept. That said, the voltage before plugging in was about 61V and everything was fine. And the panels when combined should do 480W, but when cold and facing the sun midday, they went over 500W for a bit...
  • Post in thread: Temporary Sawhorse Solar Array

    Just completed this solar panel setup inspired by Will's 600W sawhorse array. I used door hinges to secure the panels, which ended up being the perfect size. RICH SOLAR 160 Watt Polycrystalline Solar Panels (x3) Stanley 22 in. Folding Sawhorse (2-Pack) 8ft 2x4 2 in. Zinc Plated Narrow Utility...
  • Post in thread: Shore Power. Charging 2 12v Battle Born Batteries wired in series on a 24 volt solar system

    That charger has two terminals for positive and two for negative 12V DC. So you should be able to connect each battery separate like so: (image borrowed from NOCO) The question then is, how to make sure that they are evenly charged. I'm guessing that's where a BMS comes in.
  • Post in thread: Hooking up to MPP

    I believe those fans require 12 volts. So, if the all-in-one doesn't have a 12v output, I suggest using a 12 volt regulator to draw power from the batteries and into the fan. Posting the specs of the fan might help. Disclaimer: I'm pretty new at this stuff.
  • Post in thread: Will Is a Genuis

    I can't find it now. If think he took it down.
  • Post in thread: Galvanic Corrosion

    So exposure is the key? If the connection is protected, then the problem is lessened? I'm basing a portable DIY solar system on a uninterrupted power supply (UPS), which already has aluminum wires in it. I was thinking of upgrading the wires to copper, but I may be causing more problems than...
  • Post in thread: Recommended source for replacement power brick for BLUETTI EB150 1500Wh

    Your links don't seem to work. I don't own the Bluetti yet but I've been researching. Seems like you have bad units. According to reviews, quality is all over the place. This is the one I would most likely get. It has better reviews. I also discussed it in this threat.
  • Post in thread: Galvanic Corrosion

    That seems fantastic. Thank you.
  • Post in thread: EcoFlow DELTA 1300 (Plug-N-Play)

    I pledged for a 1300 one just before the Kickstarter ended. I was already a forum member and didn't think until now to see if there was a thread about it. :) What convinced me was the price, battery lifetime warranty, the UPS feature, non-proprietary sockets, and that it's not their first...
  • Post in thread: Top balancing server rack batteries

    Hey, @nelsonjrgomes, I was wondering if this worked out for you. I got some brand new EG4-LifePower4 Lithium Battery 48V 100AH. One of them gave me an 87.50 Ah on the first capacity test. I have cycled it a bit to no avail. Cell #9 keeps triggering the low voltage disconnect. But the only...
  • Post in thread: EcoFlow DELTA 1300 (Plug-N-Play)

    The Eco The EcoFlow Delta is limited to 10 amps. Let's say those three panels produce a max of 5 amps each. If they are connected in parallel, they can produce 15 amps total but the Delta will only accept 10 amps. Generally, these solar stations have charge controllers designed for series...
  • Post in thread: Can I run a 115v fridge from 110v?

    Thanks. The surge should be around 864w and the Bluetti can do 1000w continuous. It should run the fridge for like 10 hours if it consumes about 130w on average.
  • Post in thread: EcoFlow DELTA 1300 (Plug-N-Play)

    It would be kinda cool to do something like that to the Bluetti. But instead of expanding the capacity, it is to have external access to the battery for a sligtly more powerful external inverter.
  • Post in thread: Cheap class-T fuse vs well-reviewed ANL fuse

    Checks out. Thank you. Well, that answers my question. Thank you.
  • Post in thread: EcoFlow DELTA 1300 (Plug-N-Play)

    Sure. Several members here have purchased used panels.
  • Post in thread: Recommended source for replacement power brick for BLUETTI EB150 1500Wh

    Did you get it? How did it work for you? Does the Bluetti get hot while charging at 500W? Also, would something like this work? I'm asking because I already own it. But I doubt that it can work because this charger is designed to "sense" the voltage of a 10S lithium ion battery pack and adjust...
  • Post in thread: Bluetti solar panel confusion

    How strict is it? I ordered 3 RICH SOLAR 160 Watt panels with a Open Circuit Voltage of 22.3V. Multiplying by three gives a voltage of 66.9V. I chose those because when I ordered the 2400, I got an email from Maxoak that said it could accept 68V. Am I cutting it too close with those panels?
  • Post in thread: Aili monitor meter mount

    I'm guessing it's this one.
  • Post in thread: Finished my Solar Generator

    I bought a 800W Reliable Inverter and I'm having a problem with the internal fuses. They don't allow adequate DC power input for the rated power output. What extra fuses did yours come with in the bag? For a 3000W output, you'd need 276A from the 12V battery.
  • Post in thread: My Portable Solar System: Poorly designed, over-built and under-powered

    Usually, inside the fridge there is a label with "max current" or "full load current" or "full load amps". Use that to calculate the maximum watts.
  • Post in thread: Inverter Fuse Question

    I'm still waiting for a reply from the manufacturer. But does this reply from the eBay seller seem adequate to anyone? So the pair of blade fuses on the inverter board need to be identical? You can't combine a 10A and a 15A? If there are two sockets, you can't use a single 25A fuse? Edit...
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