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diy solar

Recent content by RobertGreen

  1. R

    18 New Trina 270 Watt Panel

    Are these still available, and if you don't mind, what part of the Carolinas are you in? (or I can PM you if you don't feel comfortable just posting location)
  2. R

    A story about importing LiFePO4 cells

    It's still tastier than the lifepo4 juice. That stuff is entirely unpalatable
  3. R

    Are we all getting GRADE B cells??

    Are you saying that the price of the cells DDP is $148 each?
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    Off grid internet

    It's called the "AT&T Unlimited Tablet Plan" according to my bill. I've also heard it called the Unlimited Ipad plan. It seems to be a plan which is seldom advertised (but is still available) which was formerly promoted for use with Apple IPads to give them internet connectivity over the 3G/4G...
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    Off grid internet

    Hey, I don't know if maybe you missed it earlier in this thread, but I'm on unlimited AT&T plan and it costs me 23$ a month including taxes and fees. (I purchased my own modem for ~150$) If you want to save some money and since you clearly have AT&T service available, I would highly recommend it.
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    Max input voltage/amperage for MPPT charge controller

    edit: I do not intend to convey a rude tone with this post-- I really, truly don't. I'm simply trying to stick to the facts here, and I apologize if I have offended anyone here. You are simply incorrect. While it is possible to design and construct an MPPT charger that is immune to this...
  7. R

    Max input voltage/amperage for MPPT charge controller

    I wish I knew! The first thing I did when pondering this question was begin to try to disassemble the unit so I could take a peek, but they are filled with glue and apparently it's quite difficult to open the case in a non-destructive fashion.
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    Max input voltage/amperage for MPPT charge controller

    He was correcting my incorrect @. What I'm telling you is that according to Victron, their units can and will sometimes short the input from the array while being correctly connected. Interpreting the text about "reverse polarity" in those manuals as being exclusive and absolute is missing...
  9. R

    Max input voltage/amperage for MPPT charge controller

    I am also a fan of overpaneling, because as cheap as solar panels have become it presents a nice opportunity to give your system a little boost without having to change any of the other equipment. It seems that whether or not -and to what degree- overpaneling is acceptable depends on the...
  10. R

    Max input voltage/amperage for MPPT charge controller

    I believe that you're looking at an erroneous copy of the manual. I believe that there is another version of the manual available on their website which has more information (some of which contradicts the manual that came with the MPPT 150/100 I purchased from them), but I wound up contacting...
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    Good EG4 deal at Signature Solar:

    There actually is a good deals section: (https://diysolarforum.com/forums/online-deals-to-share-with-others.44/)
  12. R

    EVE-280 cells should these be clamped tight or spaced for expansion?

    Again that's not from a manufacturer, and suggests that fibra-taping the pack together is an adequate way to apply compression to the cells.... Although this is "monkey see, monkey do," I look at the videos of the automotive manufacturers assembling packs to go into their vehicles, and they...
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    Auto transformer dangers

    I have noticed that as well, and it drove me nuts because I didn't understand if it was being done for a design or EM reason, or if it was just being done to physically attach the laminas (as opposed to an alternative like a bolt or clamp)
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    Idle 'no load' Consumption: Specs vs Your Personal Observation

    1. Victron Quattro 48v (model: 48/3000/35-50/50 120v) 2. 120v 3. 3000W 4. Measured idle power draw is 24W (the manufacturer's specification says 25W) 5. I am not using any of the optional power saving or search modes. This is just "regular" inverter-on operation. With the inverter...
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    JBD Lifepo4 Li-ion NCM BMS 200A 7-20S | Auto Identification | Built-In Bluetooth | LCD

    @ProfitBroseph , he's listed it at (https://www.ebay.com/itm/234534821932) He's got it listed for $215 + shipping OP, please put the price in the listing when you make a post like this; its a number that Every single potential buyer will have to know.
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