Recent content by Gadgetnerd

  1. Gadgetnerd

    Beginner trying to spec out a system, help!

    1st step to saving $ is batteries. For what 200amp hours of 12v Battleborns cost you can buy 280ah of 48v. That's almost 6 times the storage. No brainer.
  2. Gadgetnerd

    Growatt MIN 3000TL-X questions?

    Yeah weird how hard it is to find info on growatt products domestically.
  3. Gadgetnerd

    can i use a 40v solar array to charge a 48v lifepo4 battery?

    You need a higher voltage than the battery to charge. Put them in series to obtain this, but check the voltage limit of your charge controller first. You should get the sum of the two voltages at the average of the two amperages.
  4. Gadgetnerd

    Clawing back money for miss-sold "420ah" cells

    No, did you miss the part where a 1948 vette doesnt exist? That's kinda my central point about the 420ah cells.
  5. Gadgetnerd

    Clawing back money for miss-sold "420ah" cells

    If you can't tell a 1984 vette from what a 1948 would perceivably look like you probably shouldn't be buying anything online. This whole youtube solar/lifepo4 community is absolutely obsessed with capacity testing.
  6. Gadgetnerd

    Clawing back money for miss-sold "420ah" cells

    So they should be returning roughly 2/3 of your money.
  7. Gadgetnerd

    Clawing back money for miss-sold "420ah" cells

    Buyer beware, due diligence and all that. If I put up a pic of a 1984 Corvette for $7K and write 1948 would people actually expect a car that a) doesn't exist (and if it did would be worth 100's of thousands) and b) looked identical to a 1984 model as pictured..... Was the price they paid fair...
  8. Gadgetnerd

    Clawing back money for miss-sold "420ah" cells

    I just can't believe anyone would order a cell exactly the same dimensions as a 240ah and believe it was 420ah when nothing close to that even exists. Are they still not having any luck getting a refund or did they also pay a price also surprisingly commensurate with a 240ah cell and still not...
  9. Gadgetnerd

    Travel Trailer (1050w Solar, 3000w Inverter, 600ah LiFePO4)

    I built my whole rig for $2k less than cost of his batteries.
  10. Gadgetnerd

    BMS Needs?

    These protections are built into $500 hybrid inverter/chargers.
  11. Gadgetnerd

    BMS Needs?

    If you are working with older equipment sure it's a good practice, but modern hybrid charger/inverters use HTC thermistors to protect against in rush current. Like I say I haven't seen it in a manual yet for a new unit.
  12. Gadgetnerd

    Clawing back money for miss-sold "420ah" cells

    Who makes 420ah cells...nobody. If you used a cc just call them (cc co.) and they'll pull the money right out of the sellers account (and likely credit you) until resolved. Obviously a TYPO on the rating.
  13. Gadgetnerd

    Severe capacity degradation of 280Ah cells -- warning!

    Even at 240ah its still 5x the capacity rather than 7x. Even better if you negotiate a refund.
  14. Gadgetnerd

    Severe capacity degradation of 280Ah cells -- warning!

    I guess there's a risk, but the savings are huge. I mean 16 280ah Eve cells @ 48V =13.4kwh for $1600. Spend that on 1.5 Battleborns gets you 150ah @ 12V or 1.8kwh.... :ROFLMAO:
  15. Gadgetnerd

    Severe capacity degradation of 280Ah cells -- warning!

    Hey in China Alibaba was/is a bit of a joke especially early on. Ordering a watering can and getting a front-end loader. Heard similar tales about Dragon Mart there.....:ROFLMAO: Yeah, there you are allowed to be late to a meeting if you are the seller, but not the buyer. Also if you get...
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