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diy solar

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  • Post in thread: How do you prevent back feeding the grid during outage?

    Put the main breakers in the off position.
  • Post in thread: Coffee Maker

    French press
  • Post in thread: Smallest Mini-Split?

    Paint the container white, big fan and yard shower. If you have AC turn on an hour or 2 before sunset and run as long as batteries will last. Sounds like a seasonal camp.5000 btu is small for what you're doing
  • Post in thread: Just got delivery of my 280AH CATL batteries

    Four in parallel for a 12v battery charging at 14v at a little under 10 amps probably more than twelve hours. Monitor every cell and turn off charge if you need to go somewhere.
  • Post in thread: CATL 271Ah cell issues.

    What about the money he made on these damaged cells. He could refund that as a good will gesture while people wait for final outcome. Michael doesn't deserve a commission on bad cells. He can refund money on orders not yet shipped.
  • Post in thread: CATL 271Ah cell issues.

    You must have went to law school. Hahaha Thanks for the laugh
  • Post in thread: Eve LiFePo4 105Ah Cells

    Wipe it off and see if it comes back.
  • Post in thread: Are LFP prices artificially high?

    Probably supply and demand. They're selling as fast as they can make them. When that equation changes the price will follow.
  • Post in thread: Beware @Michael B Caro

    You are already buying from China.
  • Post in thread: CATL 271Ah cell issues.

    He was here Sunday but didn't post anything. He knows what is happening. Time for refunds. What is his phone number?
  • Post in thread: CATL 271Ah cell issues.

    Don't use them. Hopefully you can get a refund or perhaps Michael had cells on hand to make good.
  • Post in thread: China nuclear reactor problem?

    You people are funny. Hopefully you are joking. C
  • Post in thread: Multiple Battery Banks

    Perhaps a marine type battery selector switch. Turn off the solar panels to scc. Select the battery you want to charge and turn panels on.
  • Post in thread: CATL 271Ah cell issues.

    This isn't a group buy. This is a business for profit. Michael made a profit on. The cells in question, that profit needs to be returned. He didn't earn it.
  • Post in thread: Smallest Mini-Split?

    Awning or some way to make shade will go a long way
  • Post in thread: DC Fridge or AC fridge with inverter?

    I'm having great success with my iceco. Hopefully it will last more than 3 years.
  • Post in thread: Rv alternator disconnect?

    You need to know what you are doing to connect lithium batteries to alternator. Keep studying. That's what I'm doing. Time 2roll has good advice.
  • Post in thread: DC Fridge or AC fridge with inverter?

    I think people come back to review a product that failed. They're mad. If everything is good I have less incentive to post a review.
  • Post in thread: CATL 271Ah cell issues.

    Where you at Michael,? This what he said. Guys, I bought a bunch of them and paid up front with my own money, taking a chance that they would all move. I did not buy all of them available as I was not sure if everyone would be cool with cells from EV packs that are technically "used" even though...
  • Post in thread: The Real Reason LA port is backed up

    I have not followed this thread but I think the reason is we shipped our factories overseas.
  • Post in thread: This is not an affliate link. Looking for info Apex BMS

    I'm obviously not finished . It fit in a little playmate cooler. Need to add fuse and a few different plugs. Perhaps a cigarette lighter if I can find a decent way to mount it. Trying to make it with things laying around. I use less than 100 watts for what I power.
  • Post in thread: tiny house exterior lighting for street legal

    Buy the trailer light kit from harbor freight.
  • Post in thread: DC Fridge or AC fridge with inverter?

    I went with a iceco compressor cooler on my boat. $500ish. So far I like it. 200w of panels and some old lead acid batteries runs the whole boat. I have the same iceco cooler. Works good.
  • Post in thread: CATL 271Ah cell issues.

    This paragraph is telling what to expect from supplier..... I can also tell you that, from experience, I do not believe you will find any of the suppliers that are as willing to replace shipping damaged cells or runners. My experience as that they would offer insultingly low refunds on those...
  • Post in thread: 4 new 280ah cells, with Overkill BMS to boot $500 (Cells sold, BMS still available $150) [Bellingham, Washington]

    People are afraid to send money to strangers, especially new members. If you put your city state someone local would probably buy them.
  • Post in thread: CATL 271Ah cell issues.

    May 18 from the group buy thread. Michael B Caro Photon Sorcerer May 18, 2021 Edit bookmark #1,866 Guys, I bought a bunch of them and paid up front with my own money, taking a chance that they would all move. I did not buy all of them available as I was not sure if everyone would be cool with...
  • Post in thread: Help with small solar set up (24' x 12' Off the grid bunkie)

    Perhaps a 12v blower for furnace. Might save power. Is it a bird cage blower?
  • Post in thread: Something is draining my pack

    I put a switch between my aims charger and battery. On some review someone mentioned it has a parasitic draw. If you have a DC clamp meter it would be easy to check.
  • Post in thread: Beware @Michael B Caro

    Wow that's an interesting conversation.
  • Post in thread: CATL 271Ah cell issues.

    My guess is they're incompetent. If not fitted foam at least bubble wrap, foam peanuts crumpled paper, something.
  • Post in thread: CATL 271Ah cell issues.

    I just received eve 230 cells and they were packed perfectly. I'll guess you will be fine.
  • Post in thread: Is this a great deal on LiFePO4 batteries? IDK for sure so please tell me...

    Looks fair to me. The convenience of not having to wait 3 months for delivery from china is a major plus. Search reviews for that particular battery. I'm building a 230 battery and after buying the parts I'll have about $600 into it.
  • Post in thread: The dutch oven used with the wood stove.

    The dutch ovens I use needs heat from the top also. I put 5 or 6 coals underneath and twice that on the top. Worked good.
  • Post in thread: Idea for an affordable rainwater collector

    Look up poor man's fiberglass. That might be an option.
  • Post in thread: Got the itch to get an ebike - 1000Watt 48v sounds perfect

    Does your bike have disk brakes? My brother had 48v rear wheel drive. Very fast and could pull wheelies. Problem was the wheel friction brakes didn't hold up to job. Stopping quickly was terrible.
  • Post in thread: Help interpret my BMS screen

    Your BMS will improve state of charge accuracy as you cycle it a few times. I would not worry about it.
  • Post in thread: Campervan Solar help

    I have a iceco JP50 12V Portable Fridge and it uses about 600 wh a day on eco mode in a hot boat.
  • Post in thread: CATL 271Ah cell issues.

    He might have pallets of the same destroyed cells. Hopefully he didn't overextend himself.
  • Post in thread: The dutch oven used with the wood stove.

    Try a pressure cooker. Heat up remove from heat wrap with a towel and put it in the sink. Will continue to cook for quite some time.
  • Post in thread: Small 12v solar bilge pump

    I'm a boat guy. A bilge pump runs maybe ten minutes an hour in downpour. 50w panel should be plenty. If there's a chance of waves the bow needs to be facing out towards the waves. Waves will swamp the boat if the stern is facing the waves. Personally if I had a camp and boat I would make or buy...
  • Post in thread: BMS Advice Sought

    Order from Overkill. They were out of stock when I ordered on April 4 and it was delivered May 13. You probably have time.
  • Post in thread: got sparked when connect mppt to battery, bad??

    I would not worry about it. You are supposed to plug the balance wires in last. Whenever you mess with the positive or negative unplug balance wires.
  • Post in thread: Is there such a thing as a variable current charger?

    The Aims converter charger does that. The only problem is no one has them in stock.
  • Post in thread: Small 12v solar bilge pump

    If the boat doesn't leak it should work fine. You could buy or make a tarp to shed most of the rain water.
  • Post in thread: Ryobi Zero-Turn Mower SLA to LiFePo4 Conversion - (Updated - Build Complete With Pics!)

    Things have changed since you ordered batteries. I placed my order in the group buy February 11 and they have not shipped yet. I'll be lucky to get them by July.
  • Post in thread: Improving Contact Area on Welded Stud Pads

    Found this....Aluminum will be very susceptible to galvanic corrosion in contact with copper, assuming that the two metals are also in contact with a common electrolyte (such as water with some ionic content.) My batteries are on a boat in humid climate.
  • Post in thread: are my calculations accurate to minimize my electric bill using battery and inverter no solar panel

    I don't think the math works out. Your battery has about 600w of usable power. I could be wrong by I think you'll save about$.09 a day.
  • Post in thread: Am I crazy? (Solar Boat Project)

    I had a 40ft boat similar to photo. Two 3208 cats. Two miles per gallon at 8kts. You have the wrong hull for electric. You need two engines for control in tight space if there's any wind.
  • Post in thread: How to top balance offgrid with just BMS

    You could bleed off the high cells manually with a light bulb or something Perhaps that would help if you don't have to many that need it.
  • Post in thread: The Question; Compression or not

    What is going to hold the cells together? The bus bars and tape? With smaller cells compression is not as critical. If you ever need to move the battery you will need some sort of compression. The strain on the terminals if or when the cells swell could be enough to cause problems.
  • Post in thread: I'm interested in a hiked-in wilderness water collection setup using solar energy

    What is the average humidity at your location? Is it high enough to make enough water? One 100 watt panel is not much power. I would guess you would need 400 w at least.
  • Post in thread: Capacity test only 98.1AH for a brand new weize battery -

    Close enough. Within the margin of error. Enjoy your batteries
  • Post in thread: AliExpress order

    Most of those excuses are valid.
  • Post in thread: CATL 271Ah cell issues.

    Yes It tells us their Paypal refund was from the lischen people's money.
  • Post in thread: Aims 12V/24V 75/37A Battery Charger out of stock, equal alternative to get SOK batteries an initial charge?

    I have been looking for something comparable to the aims converter charger with no luck. The adjustable current is what I want so I can charge different batteries at different rates. The AC input is very forgiving so good for generator power. A 30amp charger is not going to cut it on a large...
  • Post in thread: Generator for Aims 120 VAC 24 VDC converter model # CON120AC12/24VDC

    I'm trying to buy that converter now. It is out of stock everywhere. I'm considering ordering it from Missouri solar to lock in the $229 price. It will easily run on your generator. Some have used 1000w generators and turned the amperage down to 50amps and it works. I think you need a switch if...
  • Post in thread: Teej's Honda Element Tiny RV

    You are done. Cells are top balanced. I would remove it from the power supply.
  • Post in thread: Why are my cells still charging??

    Perhaps it's the alligator clips that is causing a loss.
  • Post in thread: I'm interested in a hiked-in wilderness water collection setup using solar energy

    Perhaps try it from a similar elevation with a generator to get idea of the volume of water available. If you use a kil-a-watt meter between generator and dehumidifier you can see how many watts per gallon and go from there.
  • Post in thread: Polystyrene and foam in battery case

    Is this a mobile unit? If yes then it looks like they will eventually come loose. All that holds then together is the little bit of foam and the bus bars. I think you need a smaller box and better design, At least tape the cells together. Good luck
  • Post in thread: Tilted solar panels vs more flat panels for off road use

    With portable ground panels you would adjust a few times a day.morning sun. Again at lunch and later after noon. Whenever it's convenient.
  • Post in thread: Just got delivery of my 280AH CATL batteries

    I didn't use a BMS but I watched carefully and checked each cell to make sure none went over 3.65. Once they approach 3.45 the voltage goes up quick. Be careful how ever you do it.
  • Post in thread: CATL 271Ah cell issues.

    It looks like the fat lady is singing.
  • Post in thread: Alternator load from Renogy RBC50D1S Real World?

    I'm going with a low out put victron. 9 amp $65
  • Post in thread: Help on first install / balance with Daly & Eve

    You could bring the high cell down with a light bulb or something and try again. The other 3 are good.
  • Post in thread: Received 230 AH EVE cells

    Good price. I have the same cells and they're working beautifully
  • Post in thread: System for minivan

    1 solar panel on the roof would be more discreet than an extension cord. My compressor cooler is very efficient. You could probably get by with 100 amp battery and a hundred watt solar panel.
  • Post in thread: JBD BMS app does not work

    Try settings, apps pick the app and hit force stop. Wait a few seconds and click open. Occasionally I experience your problem and that works for me
  • Post in thread: Need A/C in trailer. No idea what im doing.

    Often you only need the AC for a few hours around sunset if you have any insulation. Worked for me on a boat in south louisiana
  • Post in thread: No bench charger, 'First charge' with SCC instead?

    Yes you can and it will speed up the balancing time. If you don't balance it will trip BMS with one or more cells going over voltage or under voltage. This will effect the usable power your battery can supply. A bench top power supply ($50ish) can balance one cell at a time. Set voltage to 3.65...
  • Post in thread: Favorite generic PWM charge controller?

    You will probably be fine with either controller. That said I would try a mppt. My no name pwm controller and 200w of panels is producing 60 to 80 amps a day at 12v. I'm considering the rich solar controller at about $80. What batteries do you have?
  • Post in thread: Topping up my 1,600 amp Lead acid with Lithium.

    I think you need a battery to battery charger to do that.
  • Post in thread: Waiting on quote to install solar panels on RV

    I think the biggest issue is making sure the roof doesn't leak when you're done. Take some time figuring that out before you drill a bunch of holes.
  • Post in thread: Need A/C in trailer. No idea what im doing.

    Buy the Honda generator and your done. Chain it to a tree a little away and you will barely hear it.
  • Post in thread: do I need to upgrade controller?

    I have a similar setup as you. 200w of panels compressor cooler, fan and 12v TV. My system just makes enough. Not an expert on charge controllers but I think you will be ok. Perhaps consider the shunt type battery monitor so you know the status of your battery level. Hopefully an expert will...
  • Post in thread: New shed setup - Li Battery drain

    I would go with 12v lights and skip the inverter.
  • Post in thread: New 24v Lithium bank & system cabin, separate 12v genset starter battery

    Victron has a 9amp battery to battery charger for $65 . That's the 12v to 12v. The 24 to 12 is probably a little more $. Look on Amazon. A 50w panel would probably give you 10 to 15 amps a day@ 12v.
  • Post in thread: I tried to charge my batteries by connecting a generator to an mppt and it didn't work. Why?

    Did you check the voltage of the batteries? Perhaps you need a better charger.

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