DIY Battery Bank LiFePO4

ronnyckb

New Member
Hi Guys, I need some help on my new solar system. Currently, I have 13.2 rooftop solar panel and connected to 2x SUN2000L-5KTL https://solar.huawei.com/en-AU/down...chment/pdf/au/datasheet/SUN2000-2-6KTL-L1.pdf each string 6.6KW. This inverter is battery ready and by the manual it only work with LG / Huawei Battery Bank. Is that mean I could not build my own battery bank with 100ah x 4 at 24V https://outbax.com.au/voltax-12v-10...y-lifepo4-deep-cycle-recycle-camping-rv-solar What happend if i use the Battery feeder from Huawei Inverter directly to these LiFePO4 battery bank? These battery have BMS build in so i should not worry about over charge.
 

Jing85

New Member
Hi, I would recommend that you go with LG or Huawei. The SUN 2000L works with high voltage battery only. Communicate between inverter and battery will be very important. I don’t think you can make your own battery to communicate with Huawei inverter.
 

jasonhc73

Cat herder, and dog toy tosser.
It only works with those LG and Huawei BMS's because they don't want DIYers saving tons of $$$$.

No, you cannot make a DIY battery work when LG and Huawei own the agreement with the Charger company.
 

ronnyckb

New Member
What if i spilt the PV into 4 strings. From 13.2 total to each strings with 3.3kw. One of the string i feed into Victron battery charger 250/100 then back to Huawei inverter is that gonna work, as i am not using the battery ready option.
 
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