12 volt or 24 help low AH

[Dwd902]

Hello all,

My wife and I have been living off grid almost 4 years now. Our current system is 12 volts with 540 watts of solar and 8 lead acid 6 volt 100AH battery's wired series parallel. We only use solar for a small 12 volt fridge, separate freezer, small washer, various battery's(tools and AAA ect.), phone and minor USB stuff. We have a child and are expecting another soon. Here is the issue. The wife wants a real washer and a overhead light with fan. Our batteries are starting to degrade so I figured I would update system. I was looking at the all in ones and am concerned with 1000 watt max for my needs. Especially for washer. Wasn't sure if getting 2 mpp for 2000 watts was better or going tob24 volt system. I plan on getting 2 12 volt 200AH lifepo4 batteries. Looking for any advice if possible. Thank you.

EDIT:PIP1012LV-MK is what I was thinking of getting 2 of.

 

[Supervstech]

How much solar are you upgrading to?
5120Wh will need 930 W solar minimum to recharge in an average 5.5h day…
If the washer is the only power hog increase, it shouldn’t impact the drain of the battery too much, a ceiling fan will use up a lot of Wh depending on hours of use…

 

[Dwd902]

How much solar are you upgrading to?
5120Wh will need 930 W solar minimum to recharge in an average 5.5h day…
If the washer is the only power hog increase, it shouldn’t impact the drain of the battery too much, a ceiling fan will use up a lot of Wh depending on hours of use…

I wasn't planning on increasing solar. The unit max is 600 watts. I'd have to buy all new panels.

 

[Dwd902]

Would it make sense to get 4 12 volt lifepo4 200AH battery's and a make it 25 volt system with a 24 volt all in one?

 

[Supervstech]

More battery, means more solar needed, if used. 24V means the 12V appliances will need transformers for power.

 

[Dwd902]

More battery, means more solar needed, if used. 24V means the 12V appliances will need transformers for power.

Okay thank you. Could I get 2 of these panels:

• Power(Pmax): 335W
• Maximum Power Voltage(Vmp): 34.1V
• Maximum Power Current(Imp): 9.85A
• Open Circuit Voltage(Voc): 41.6V
• Short Circuit Current(Isc): 10.4A

And add them to my current ones
Pmax. 280
Vmp 31.7
Imp 8.8
Voc 38.4
Isc 9.42

 

[Dwd902]

Okay thank you. Could I get 2 of these panels:

• Power(Pmax): 335W
• Maximum Power Voltage(Vmp): 34.1V
• Maximum Power Current(Imp): 9.85A
• Open Circuit Voltage(Voc): 41.6V
• Short Circuit Current(Isc): 10.4A

And add them to my current ones
Pmax. 280
Vmp 31.7
Imp 8.8
Voc 38.4
Isc 9.42

Or use a bunch of 100 watt panels wired series parallel