Lifepro4 batteries on Alixpress some with free shipping. Thoughts?
Quote from: chessie4905 on November 12, 2021, 05:31:14 PM
Lifepro4 batteries on Alixpress some with free shipping. Thoughts?
My Canadian friends buy the Valence 138 amp some place in CA for $375.00 ea I paid $1200 for 2 Lifeline Lifepo4 really upset me when they told what batteries cost them plus they have more amp
Clifford this guy sells these when they are taken out of service at Hospitals single or in Lots for cheap. They have about 2/3 life left because thats when they have to replace them in the medical fields. :^
https://www.ebay.com/itm/185143380344?_trkparms=amclksrc%3DITM%26aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D20200818143230%26meid%3Defa49368cf3a49cd911705ba587db6fc%26pid%3D101224%26rk%3D3%26rkt%3D5%26sd%3D234270902290%26itm%3D185143380344%26pmt%3D1%26noa%3D1%26pg%3D2047675%26algv%3DDefaultOrganicWeb%26brand%3DValence&_trksid=p2047675.c101224.m-1
Dave 600 for 6 if you only got 1/2 to work that would be a bargain, you know me and electrical lol it wouldn't work well.More manufatures are getting into the mix now it won't be long now before they are affordable
They state that they are for parts only and will not take a charge. They don't want to build your hopes up.
https://www.aliexpress.com/item/1005003182153528.html?spm=a2g0o.productlist.0.0.37d26cf3KQkqW5&algo_pvid=d62c6922-b489-49e0-a1f5-006f7c5c6618&aem_p4p_detail=20211112193151240971992259520012794579&algo_exp_id=d62c6922-b489-49e0-a1f5-006f7c5c6618-9&pdp_ext_f=%7B%22sku_id%22%3A%2212000024547326150%22%7D
there are lots of different ones available, several with free shipping
If you are serious about securing batteries, drop me a PM. There is a large Chinese company that has secured a US warehouse in Houston and distributing from there for nearly same price as FOB China.
Just got this quote two days ago.
Hello Don,
The batteries coming soon are EVE LF280, EVE LF280K, EVE 230Ah. The ETA to Houston warehouse is 24th NOV if without any delay.
EVE LF280: 147USD per piece delivered
EVE LF280K: 147USD per piece delivered
EVE 230Ah: 108.5USD per piece delivered
Please kindly advise
Thanks
Jenny
I thought the availability in 24 volt might have a benefit vs. 12 volt ones. Those prices you shared are close to one I found earlier, but tired of trying to find again last night. You go back to find it and 50 other companies selling batteries come up instead.
With delivery a couple of weeks away, here is the current breakdown on DIY build of 7kW LiFePO4 battery pack.
$147 280Ah LiFePO4 delivered
8 required for 25.6vDC 280Ah battery pack, total capacity 7kW.
8*$147 = $1176 or $168/kW.
Add a couple hundred for connectors and BMS.
Prices have gone up but are still very reasonable relative to off-the-shelf retail.
No reason to not jump onboard
That actually sounds pretty good. How much does the control/charging package cost?
Jim
QuoteAdd a couple hundred for connectors and BMS
:) charging all depends on source. PV array costs vary a lot, charging via alternator, charging via AC charging, all over the map
OK fair answer but dodging the question all the same. Using the shore line then. It'll be years before I can go PV and things will have changed by then. Really I'm waiting on a PV wrap to do the whole roof at a reasonable cost. It's coming but it may be awhile. In the meantime someone will eventually come up with a quiet deployable wind turbine which might be a better choice in the Appalachians where there is almost always a breeze, day or night. Or possibly both. But batteries will always be needed.
Jim
I was looking at Alixpress. They have some rated at 500ah 12volt in the 5's. Low 6's free shipping. Comes with charger, although probably long time on recharge.Battery 21x12x12 approx. Would a couple of these in 24 volt be better or not for reduced wiring, instead of 4-12 volt?
Quote from: Jim Blackwood on November 17, 2021, 10:15:25 AMdodging the question all the same.
What the hell does that mean? Dodging what? Just use your existing bus inverter/charger unit, plug in AC and charge the battery. There is nothing special for charging profiles like other battery types like LA, AGM, etc. Charge full speed then stop when full.
Please restate the question as the previous answer seemed like a dodge. thanks
Quote from: chessie4905 on November 17, 2021, 03:05:42 PM
I was looking at Alixpress. They have some rated at 500ah 12volt in the 5's. Low 6's free shipping. Comes with charger, although probably long time on recharge.Battery 21x12x12 approx. Would a couple of these in 24 volt be better or not for reduced wiring, instead of 4-12 volt?
All lithium batteries are 3.2 to 3.7 nominal volts. You just serial them together to get the pack voltage you desire. For example, my LiNMC is 7s@3.7 = 25.9v. Even though max charge is 4.2, I keep my topped at 3.9v for 27.3v max.
8s on liFePo4 is 25.6v nominal.
You can choose to gamble on Alibaba/express with whoknowwho company. What I was posting here is a Chinese company who has made the next step and setup a domestic warehouse and charging basically same rate since they are bringing in batteries by the container so get far better shipping costs than one off shipping to customers.
I have 1- 200 watt solar panel it seems to keep the Lifelines charged but I haven't used much power from the 2 batteries, I drew the batteries down to 50% and the inverter didn't take long to charge the 2 back to 100%.
I try to keep all the Chinese made stuff I can out of my life ,some times you have no choice
Pretty much impossible anymore.
Had a microwave smoke bomb a couple days ago. Panasonic website had the same brand new 2015 unit for $550! Ended up getting a very similar Panasonic unit at Sam's Club perfect in size the only difference was the key pad - $159... Made in China. Before us westerners started buying made in China goods from the internet most name brand manufactures were doing it for us - big names including the US military!? WTF?
Quote from: chessie4905 on November 18, 2021, 05:21:23 AM
Pretty much impossible anymore.
Yep I ordered a Gates water pump for my pickup the box said made in the USA lol the water pump in the plastic bag says made in China and I paid 30 bucks extra for the Gates name 8),the Gates belt and tension pulley were made in the USA,hard to believe no one rebuilds water pumps anylonger and GM would put the thermostat in side the water pump
Toughened fuel economy standards are resulting on all kinds of innovation to meet them. Aluminum bodies or beds, shorter sidewall tires, cylinder deactivation, multiple speed transmissions, variable output alternators and oil pumps, variable camshaft timing, start stop, etc.Some successful, some not.
Quote from: chessie4905 on November 18, 2021, 06:03:06 AM
Toughened fuel economy standards are resulting on all kinds of innovation to meet them. Aluminum bodies or beds, shorter sidewall tires, cylinder deactivation, multiple speed transmissions, variable output alternators and oil pumps, variable camshaft timing, start stop, etc.Some successful, some not.
People are in for a sticker shock when they have a starter replaced on the new start and stop engines dumb idea a starter inside the bell housing lol that is probably a 2k starter replacement I saw one being replaced at the Chevy dealer
Replacing the water pump on my 2017 Ford Explorer costs $1200 because it is inside the block behind the timing chain cover. If the shaft seal gives up it fills the engine with antifreeze--bye bye engine! Jack
Thanks Don, I don't remember ever seeing anyone here say you could use a regular battery charger with Lifepo batteries before so I just assumed they needed something special. That actually does make a pretty big difference in the decision about what to buy.
Can you imagine a whole container full of those things if the seal on one failed and air got to it? Man the life boats!
That starter in the bellhousing thing is actually a really good idea if they use a brushless motor. Nothing but a winding inside to go bad and it can only fail by overload, physical damage, or poor quality control at manufacturing. No built in finite lifespan, it could last forever. Plus being so large diameter it wouldn't take much to generate a whole lot of torque. I don't know why they haven't done it sooner, but it probably took rail gun technology to kick start it.
Jim
good to check owner repair reviews before buying, unless doing own work. The afm on new models is a killer if it goes out. Same with failing torque converters. Metal particles go through whole transmission.
Jim - the one caveat about using any charger is to ensure the output of the charger is in the range of the battery pack. A general guideline is .5c to 1.0c of rated pack. If you ran a small pack, you'd need to be more careful to not exceed pack charge capacity.
Don, Speaking of that my Victron 100/50 is over charging these past few days at 101.9 when normal is no more than 98.6 and alert says #33 which is over voltage. For the day 2 panel each 2 are 97.00 Volts of 6 are all 250 watts each panel. Just started doing it. Inverter is turned off right now but panels keep the 8 6volt batteries charged all the time. Any ideas?
Maybe need to go to a 200/ 50
Hi Dave,
Not sure it is anything abnormal or especially anything wrong with the equipment. The charge controller is doing what it is supposed to. I don't think a percent or two is causing any harm. And they advertise them as "smart" so maybe the programming is making some small adjustments to max the performance.
Size of the charge controller is determined by the size of the array and ability to handle current.
The manual is here I believe for your unit. https://www.victronenergy.com/upload/documents/Manual_SmartSolar_MPPT_100-30__100-50/MPPT_solar_charger_manual-en.pdf
Dave- Are you referring to the SOC number? If it is reading at/near 100% it is fine. If it is slightly over 100%, it probably is the calculation. SOC is based on the amount of energy available for you battery pack. And that is either set or dynamically calculated based on measuring the current flowing from the charged state to empty state. And ideally you define what those thresholds are based on voltage. There is limits to full and empty voltages based on the battery chemistry. Generally, you'll want to stay within 80% as the typical amount of energy to discharge. You get far more cycles that way. You can discharge the batteries to the max, gaining maybe getting that added 10-15% energy but the cost is a the number of cycles goes down a lot if pushed hard. Hope that helps, you got my number