EG4 PKV 18000 Battery Question

[Floridajoe123]

Question one, What are the loss of function with building my own 50KWH battery for 5,000 as opposed to buying the EG4 batteries? Other then a BSM what other components would be needed for a DIY battery. (William you did a great job teaching battery building!)

Next somewhat battery questions. I have an off grid system with 25KWH battery with a Victron multiplus 120V 3000W 24VDC in a boat 2 feet from the eG4 KPV 18000. Is there a way to feed 110V into the boat off grid as back up power to the EG4, if so will it convert the 110 to 220 ?

 

[DIYrich]

Cells
Cell to cell connectors
BMS
Wire
Wire connectors
Class T fuse
Holder for class T fuse

Optional:
shunt
Switch / breaker
Case
Compression method
Powersupply to balance cells
Multi meter

 

[DIYrich]

Next somewhat battery questions. I have an off grid system with 25KWH battery with a Victron multiplus 120V 3000W 24VDC in a boat 2 feet from the eG4 KPV 18000. Is there a way to feed 110V into the boat off grid as back up power to the EG4, if so will it convert the 110 to 220 ?

1) autotransfomer to convert 120 to 240
2) chargeverter to charge battery directly
3) it may take 120v (accepts unbalanced power).

 

[Floridajoe123]

Cells
Cell to cell connectors
BMS
Wire
Wire connectors
Class T fuse
Holder for class T fuse

Optional:
shunt
Switch / breaker
Case
Compression method
Powersupply to balance cells
Multi meter

Thanks for the information, I have built a 25KW battery and use it in the boat. It works great and pretty much used all of your list of equipment. I am just wondering why there is such a price difference in buying a premade battery as opposed to making one. 5k to 6K for a home made but 12K+ for a manufactured one. They do a nice job on there build.

 

[Floridajoe123]

1) autotransfomer to convert 120 to 240
2) chargeverter to charge battery directly
3) it may take 120v (accepts unbalanced power)

Thanks, I will not plan on building a battery until after it is installed just in case it can take 120v in an AC input and covert it to 240.