diy solar

diy solar

Recent content by GR6627

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    AliExpress Order 1 of 4 cells bad

    Glad it worked out. For future reference you can hook the cells up in their 12V configuration WITH THE BMS for initial charge for top balancing, Typically this is much quicker as chargers are generally 20 Amps or more. Then reconfigure the cells in parallel for top balance/charge. Generally...
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    AliExpress Order 1 of 4 cells bad

    Maybe try again as it sounds like you were in a hurry, and 3.14 is not full charge. At 3.14 you are on the middle/downward curve of the SOC. Try charging to 3.6 in parallel, I let the charger go to zero Amps @ 3.6V (actually 100mA or less works fine). Let stand for 24-48 hrs. Then...
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    420Ah Cells on Aliexpress!?

    Just out of curiosity, which store did you order these from?
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    420Ah Cells on Aliexpress!?

    Thanks Andreas. My bubble of optimism has been burst. But my wallet feels more secure. In the mean time... ... the stores have now magically consolidated, as #910805014, and so has the product. Now all are listed at $600.17, and it appears that the shown label now looks more...
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    This seems way too good to be true ... 420ah from a "normal size" LifePO4 cell

    Just noticed that store # 910805014 is offering 4 "Brand New Grade A" cells for $568.58. Store # 910787018 is $657.53... ... Cheaper cells come with 6mm grub screws and nuts vs. Hex head screws. So hardware "appears" to be different. Interesting that both stores started Oct. 12, 2020, and...
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    420Ah Cells on Aliexpress!?

    Really looking forward to your tests on the 420Ah batteries. I know that RGIvy has some on order as well. Thanks to both of you for taking the leap. Overkill and JBD appear to be very similar (as in the same). I have 2 of the JBD's with bluetooth modules that cost around $75. They work...
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    This seems way too good to be true ... 420ah from a "normal size" LifePO4 cell

    Yeah, my last order took 9 weeks and I live on the west coast. The order before that took 10 weeks. Even the folks at MPP have had a tough time getting stuff through LAX. The good news is that the container ship backup seems to be getting better. Anybody have contacts in China? Maybe they...
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    This seems way too good to be true ... 420ah from a "normal size" LifePO4 cell

    Yeah, but for those of us that are "power mad" the temptation is overwhelming. And if its true I'm probably going to be the first (or in this case the second) to punch the order button. I love things that are too good to be true. Same reason I buy cheap batteries... I'm cheap.
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    This seems way too good to be true ... 420ah from a "normal size" LifePO4 cell

    Really looking forward to your test. Even if these turn out to be 280Ah to 310Ah new cells. it's "only" about $130 down the drain. I do appreciate your sacrifice.... Those of us who like to go cheap realize that there are some pretty crappy batteries out there. I have 8 of those not-so-new...
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