timselectric
If I can do it, you can do it.
- Joined
- Feb 5, 2022
- Messages
- 18,637
Will definitely work.
May not communicate, if that's a concern.
I really like the new powerpro battery..
- Thread starter Will Prowse
- Start date
May not communicate, if that's a concern.
Rednecktek
Solar Wizard
It's the same reasoning that you can't use a Duracell and an Energizer together in your TV remote. Because lawyers.
It doesn't actually look like it is welded since they put that goop on it to keep the screws/bolts from loosening up. But the BMS is surrounded by that shield as well so does not look like it is easy to even replace that. I know I've seen Current Connected send out replacement BMSs for the SOK 48V batteries which there is no way you could have an end user do that with this battery. This entire weight/shipping issue for fixes/replacement would be alleviated somewhat if you had a "local" dealer that you could at least drive to.
There's been big push for "right to repair" and places like iFixit would rate repairability of different electronics. This battery would have to get a 0 score in that area. This really seems like something that should be mentioned more because there is a huge overhead for any of these larger batteries to have to be shipped back for repair or replacement. The 5.12kWh server rack batteries are heavy enough but this thing weighs over 300lbs! Even if SS pays for partial shipping that is a huge waste of energy to ship 300lbs if it is something like a 2lb BMS that needs replacing.
Brucey
Solar Wizard
If you mean sharing the same comms cable between power pro and life power 4/LL I don't think this is supported. However if you are just paralleling at a bus they don't know or care what else is connected to it.
I have server racks and power pros in parallel right now. The power pros are communicating with an 18Kpv connected to the battery bank. But the server rack batteries are not. I also have a separate solar charge controller connected to the stack of server rack batteries.
And I still monitor and control the whole system the same.
Last edited:
timselectric
If I can do it, you can do it.
- Joined
- Feb 5, 2022
- Messages
- 18,637
18k pv
but yes, no problem at all.
i have seen (as I like to call it) your "battery room". lol
wattmatters
Solar Wizard
Like you I have LiFePO₄ batteries from different suppliers working together just fine. They are not data connected to each other or the inverter.
I think the caveat is that batteries operating in parallel should be sufficiently similar in their nominal voltage rating. Not all server rack batteries operate at the same voltage, some LiFePO₄ units are 15S 48.0V and not 16S 51.2 V.
As to batteries in a TV remote, those are often operating in series and in such a case it is wise to ensure the batteries are very closely matched in terms of usage, age, voltage, chemistry.
Zwy
Solar Wizard
wpns
Solar Joules are catch and release
Isn’t it 18Kpv? Or have I been doing it wrong? On the other tentacle, SS calls it the
Attachments
Zwy
Solar Wizard
I have a pair of 8Kpv LV6548's.
wattmatters
Solar Wizard
18KPV
timselectric
If I can do it, you can do it.
- Joined
- Feb 5, 2022
- Messages
- 18,637
I have several 5K units.
I could call them 6Kpv units.
But they sound bigger if I call them 9.6Kgpt units.
I could call them 6Kpv units.
But they sound bigger if I call them 9.6Kgpt units.
tomy2
escape artist
Is that the box on top of the Ruixu server rack? was wondering what that was. what charge controller is that?
Brucey
Solar Wizard
Victron MPPT RS SCCs (Will review)
For those that haven't seen it, yesterday @Will Prowse posted a great review on the Mac Daddy of SCC'ers.... I love mine (450/200).. thanks for showcasing it Will.
diysolarforum.com
I don’t want any of my gear other than panels outside…unless it is inside a heated/ cooled secure enclosure that I can get a good line of sight “bead”on. ( not everyone will get that ) ….
I like those batts a lot .. I am waiting for the next gen of batts like this to surface so I can expand my gear…I think a lot of new good stuff will be out in the next 5 years… at least I’m a hoping..
timselectric
If I can do it, you can do it.
- Joined
- Feb 5, 2022
- Messages
- 18,637
tomy2
escape artist
when he says the word "expensive" four times, l know that it is out of my price range without even looking.Victron MPPT RS SCCs (Will review)
For those that haven't seen it, yesterday @Will Prowse posted a great review on the Mac Daddy of SCC'ers.... I love mine (450/200).. thanks for showcasing it Will.
Brucey
Solar Wizard
It's definitely got a premium price to it. The Victron 150/100 is $517. The 250/100 is $613. The 450/100 is $1230. Back prior to the huge price drop on non rs450 sccs, the delta wasn't quite so bad.
All three can output same max of 100A. Paying double or more for the 450/100 gives you two seperate mppt trackers, 450V max panel voltage(effective max voltage is 8 times charge voltage), isolation between PV and battery, and a couple of extra relays. Does have three fans for cooling where the 150/250 units are completely passive. Bang for the charging buck remains with the 150/100 but depending on distance to panels and layout you may end up paying more in extra wiring to support the parallel strings, versus longer series string options the 450 opens up
OffGridForGood
Catch, make or grow everything you can.
Seems to me the 250/100 is best "bang for charging buck" ? No?
150/100: $517/15 = $34.47/kW
250/100: $613/25 = $24.52/kW
450/100: $1230/45 = $27.33/kW
higher voltage may also mean smaller ga. cable run that would affect the total cost per option, especially important on long cable lengths.
Zwy
Solar Wizard
EG4 MPPT 100-48HV: $399/55= $7.98/Kw
