Surferdudemi
Solar Enthusiast
- Joined
- Dec 18, 2020
- Messages
- 248
My torque wrench is set for 60 in-lbs. No problem on two full 48 v packs after installing and dissassembling a couple of times. Maybe mine reads high?
based on what I have read on this thread, probability of breaking the weld at 7Nm is around 10%. Maybe you’re just lucky and got cells with good connections. I just used 5Nm to be safe and came back a couple of times to check nothing was loosened over time.My torque wrench is set for 60 in-lbs. No problem on two full 48 v packs after installing and dissassembling a couple of times. Maybe mine reads high?
Not bad at all, imro (In my rookie opinion)Finally getting around to charging them up, where the heck does time go...
They were wired in series for roughly a week before I started charging them with the generator because I'm to stubborn to use the grid ?
No top balance, just thrown into the pack.
If they come back in stock @ $79 I'm ordering more. I realized 32 of my 230ah will fit on one shelf in a 4 deep by 8 wide configuration.
Edit - no idea why the BMS is showing 18 cycles, first time I've put current through it.
I doubt they will restock the B grade. When I talked to Steven(?) a couple of months back, he noted that they are moving away from these. They don't make enough money on them.Finally getting around to charging them up, where the heck does time go...
They were wired in series for roughly a week before I started charging them with the generator because I'm to stubborn to use the grid ?
No top balance, just thrown into the pack.
If they come back in stock @ $79 I'm ordering more. I realized 32 of my 230ah will fit on one shelf in a 4 deep by 8 wide configuration.
Edit - no idea why the BMS is showing 18 cycles, first time I've put current through it.
That's understandable. Good news is it looks like prices are dropping regardless.I doubt they will restock the B grade. When I talked to Steven(?) a couple of months back, he noted that they are moving away from these. They don't make enough money on them.
What brand of torque wrench. I'm guessing it hasn't been calibrated by a PMEL lab. (Precision Measure Equipment Lab.)I snapped 2 lugs off whilst using a torque meter for the first time in my life![]()
Damn it! Now how do I justify buying or not buying theseWelp, they are back. During my “weekly” internet price sleuthing I saw them this morning.
Presale, slated for inventory December 21.
New price, $75/ea
?
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ENVISION AESC 305Ah Grade B Cells - 3.2V LiFePO4 Battery
Brand new ENVISION AESC Grade B 305Ah LiFePO4 battery cells. Tested, sorted, and matched for guaranteed performance. Ideal for applications that prioritize cost-efficiency. 30-day warranty and moneyback guarantee.www.18650batterystore.com
Damn it! Now how do I justify buying or not buying these![]()
This is suspiciously specific ?keeping your kids out late on weeknights so their grades slip and progress reports come out right before Christmas which means Santa will put them on the naughty list and thus you can buy batteries
I don’t have many childhood memories, but there are a fewThis is suspiciously specific ?
Did you ever end up drilling / taping threads? I have 3 batteries that the posts broke loose on, and need to repair them.It seems from my interwebs sleuthing that 6 mm is the maximum you want to go to.
Presume you now had a chance to battle test these for a bit, would you recommend taking these cells vs EVE 280s please? I am also in UK [Hertfordshire] and looking at frogstar. These would be my first battery and DIY kit. I am very financially constrained as live in rental house, which has got terrible energy efficiency thus need to get solar to minimise fuel poverty and really hope to get this right first time. Your experience and advice would be really appreciated.No, no swelling, and I'm in the UK, so I ordered from Fogstar.
What? Fogstar have been nothing but great for me when dealing with any issues, and they do batch test their cells, so if they're selling them, it's a pretty good bet they aren't offloading shit onto the market.
I have not got around to it yet.Did you ever end up drilling / taping threads? I have 3 batteries that the posts broke loose on, and need to repair them.
Anyone know if 18650BatteryStore charges immediately for a PreSale Order or is the credit card charged at the time of Shipping, which the web page says could be December 21, 2023? Eg: Amazon only charges when the product is shipped, I'm not sure of other businesses.
I broke a stud off / laser weld.Drilled and tapped it, i may have went a little too deep on the drilling, will find out soon enough. I have it charging back up and seems fine so far.Did you ever end up drilling / taping threads? I have 3 batteries that the posts broke loose on, and need to repair them.
Interesting. The listing still says "Re-stocking soon" and the price dropped to $75. Maybe they changed their minds? You would think they would just remove it if they were dropping them entirely. They aren't a lower grade of other cells they sell, so it's not as if they are testing them as they come in and putting some in the B bin.I doubt they will restock the B grade. When I talked to Steven(?) a couple of months back, he noted that they are moving away from these. They don't make enough money on them.
UPDATE :
Wednesday 25 Oct. Have tested 11 of 16 EVE 304Ah cells from 18650. Lowest cell capacity is 311.7 Ah, highest capacity 316.2 Ah. Will keep you posted.
can't comment on the EEL cases, but in the Seplos Mason 280 kits they fit perfectly..What's the story on these cells fitting into the EEL case? I've seen a few comments that say yes, and others that say no.
I'm looking at this case EEL V3 with 16S 200A BMS and Bluetooth in white for $610 but not sure why this one EEL USA Stock is almost $100 more. Are the cases different?
Thanks for any help.