diy solar

diy solar

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  • Post in thread: Storing heat in sand?

    Cover the tank in biomass. Make an Anaerobic Combustion wood chip pile or other biomass Heat Source https://www.motherearthnews.com/diy/compost-heater-zmaz80sozraw Simplest way is wire the hotwater to 120 volts for 1100 watt draw and or wire the 2 elements in series to get a 550 watt load. We...
  • Post in thread: How many solar panels do I need to load 16 eve Lifepo4 batteries (48v system)?

    2 many more than what's required is a good starting point.
  • Post in thread: Help! What to do with waaaay overcharged cells?

    start at 47:00 He explains it really well. You have to listen.
  • Post in thread: Excess energy in off grid system

    A dead short away from the wind turbine uses the wire as an inductor to limit the surge at the windimill. Its like regen braking on a car.
  • Post in thread: How many amps can a victron 100/20 48 volt solar mppt handle? Is this false advertising?

    You missed something. 48 version is to be used with a rely. That explains the 1 amp limit.
  • Post in thread: New user- Tesla battery/system questions

    One way is to use a 7s bms is to hook the 7th battery to a cell that does nothing. This 7th cell is just there to provide a voltage to cell 7 so the bms can work on 6s packs. Got it. I do this all the time. Some bms's work if you just leave off the 8th wire. You will need to experiment to...
  • Post in thread: Unsuccessful wind turbine story

    I would place a group of batterys at the base of the tower. Charge them off windmill. Send the power to the Shack with a boost converter circuit. An inverter would work. Needs to be a control circuit to turn on and off the boost circuit. This should be easy to manage. Your windmill need to...
  • Post in thread: Can Solar & Wind Fix Everything (e.g., Climate Change) with a battery break-through?

    "You can't type yourself smart" Jack Rickard
  • Post in thread: I'm having an idea for off-grid heat... doodle check?

    Get 2 of them. One for parts. You really cut down the anxiety curve this way. I have heard reports of the glow plugs snapping after the first fire. I believe there is moisture collecter inside that needs to be corrected. Remove the heater from the plastic case, remove the control board and...
  • Post in thread: 12v vs 24v

    Hook 2 100 watt panels in parallel. then to a charge controller. Do this twice. Overall will be 2 200 watt systems. Use AGM, the real Mans battery. Dont need mppt. Just adds to much RF noise.
  • Post in thread: Fixed gel-battery charging profile for LFP battery?

    28 volts cutoff is fine for charging LifePO4. You would set GEL setting on the Morningstar. " The Battery Type rotary switch allows selection of 1 of 3 charging algorithms. These are broadly defined as the following battery types as noted on the lower label: Gel: Some gel and other battery...
  • Post in thread: Idea to safely charge inverter capacitors

    The resistor goes on the positive breaker in the Jack Rickard design. Yeah Baby, Blow it Up...PoooooF
  • Post in thread: Uh oh. lost the magic smoke

    Rubbish Cells do it everytime. You need industrial grade new cells like what comes in cordless drill packs if your going to MadMax overload your battery. Or just get a Sur Ron
  • Post in thread: Fuse Fire

    So the Microwaves going and the house battery is draining and saging and the engine battery is flowing current through the charge wire that is mistakenly connecting both batteries, and the current over time is climbing and melting the fuse holder. This is because some idot wired that boat...
  • Post in thread: New here, looking to make a smart choice.

    Buy a Used Chevy Volt and use it to power the 7 days. You put a 1000 wall transformer inverter on it and configure it correctly and you be alrite. The Idea is to use the dc to dc converter as a power source. The converter is capabale of outputting 2000 watts or there about. So if nothing in...
  • Post in thread: I need advice regarding my water system

  • Post in thread: Overvoltage damage to LiFePO4 cells?

    You left out Smoke see 50:00 overcharging the little Puppy.
  • Post in thread: CB radios

    The uniden 980ssb is one of my favorates for ssb and am. Most notably the ssb audio from the 980 is superb. May be a fluke but that's what everybody tells me. They do have there quirks but all the new radios made in china do. There are 2 schools of thought. Amers and SSBers. Radios configured...
  • Post in thread: Solving for voltage drop over 200'

    Load sequencer!!!!!!
  • Post in thread: PF of mini splits

    PF is the blending of Real Power and Reactane Power.
  • Post in thread: REFRIGERATOR VS SOLAR POWER

    Large transformer inverters with power factor correction. And some used Model S packs.
  • Post in thread: Running Generator on Natural Gas

    Been fitting my Gasoline generators for Natural Gas and they are working great. I'm using the Chinesium Despenser and Carb from Aliexpress. $30. Fitted a Champion 1200 watt and a Homelite 4300 watt. Both run great. No stinky smell. Motors run very smooth.
  • Post in thread: What size resistor for inverter fire-up?

    25 ohm is ok. I use light bulb 2 12volt in series. Yeah what he said.
  • Post in thread: Trying to switch from flooded lead acid to lifepo4 batteries

    Replace the Fla batterys and be done with it.
  • Post in thread: 240 generator into two single phase120 all-in-one chargers?

    Your Chargers most likley employ PFC circuits. Power Factor Correction. This seriously complicates generator hookups. I would model my gen hookup to supply 50% of the generator load rating. Some attention spent on optimizing the governer linkage to obtain smooth transistion between load on...
  • Post in thread: CB radios

    Best antenna is a piece of wire from Dollar General, a 25 foot extention cord. Cut it up and make a 1/2 T2LT variant called a DIY Siro Gainmaster 1/2 wave and put it up at least 30' Kicks A$$. I've built a lot of antennas and this one is my favorate. Mine is at 77' on a bamboo stick held up...
  • Post in thread: Sandbox The LifePo4's

    The Idea is to get a Tub and put sand in like 4 inches and place the 300ah cells evenly spaced and pack sand around them and use cables "NOT BARS" and hook and then put a layer of sand on top. This sand should be clean like Play Sand you can get. The Batteries go outside and a Water systen...
  • Post in thread: Solar Bimini - what's the best panel?

    Sail south till the butter melts and ask the guy in a fishing boat where is Charlston SC City Dock, Ask them they know everything. The panels you have are better than the ones you don't have.
  • Post in thread: Newbie Alert

    Going from a point of less knowlege to an industrail battery build usually results in charcoal. All of us who "PLAY" with these and other systems have started small and played with small circuits to foster understanding. Will started out with a car battery and an inverter and solar/charge...
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