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Older Xantrex new Lifepo4 battery charging

JKBus

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Dec 21, 2023
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I am planning to change my my whole system out to 24 volt and omit the FLA batteries

in the meantime while I plan my system out, is it safe for me to set my older Xantrex rs3000 NON Lifepo4 inverter to manual charging @14.6 volts and install my 6 12volt sok 206 in parallel?
 
Probably. An inverter doesn't know or care what battery type supplies the DC current to invert to AC.

Also, the inverter is a bit flexible with the supplied DC voltage to invert out to AC.

Your DC voltage however is more applicable to the battery charger, some of which are built in to "inverters", some of which are separate devices / chargers. You don't say what you have, just a model name, which is hoping someone knows that exact model and understands your question and has the knowledge to explain more.

However, some appliances might be picky about the type of AC current produced by an inverter, if it is a modified sine wave, vs a pure sine wave, neither of which is relevant to the supplying DC battery types vs the quality AC output by the inverter.

There are also other considerations too but without a lot more specifications about your inverter, it will be up to you to list them or read your user manual.

LOTS of inverter questions have been asked lately and thoroughly discussed in the past, so searching the forums for inverter info will help you immensely to understand the way things work and your inverter, along with the inverter user manual.
 
is it safe for me to set my older Xantrex rs3000 NON Lifepo4 inverter to manual charging @14.6 volts

I personally would not go that high. Can you set it for something lower? I use an only Xantrex charger once in a while and set the output to 14.2 which works ok.
 
thanks for your response E. Cho,

It’s a Xantrex Sine Wave inverter ,
Dc output 16v dc max, 150amp max continous,
120 v
total pass through plus charge,
50a per line split phase
30a per line dual
invert mode
ac out 120 v 60 hz 2700 w
2700VA continous at 50 deg C
7500a surge
3000w limited time
dc input
12v dc
300A max continuous

its only labeled as Sine Wave

while I was typing this, SOK replied to my email and said there is no issue charging with this inverter and recommended I set it at 14.6 volts.

Texas-Mark if you think 14.2 is better for battery life or other reasons I am all ears. I am new to this and ready to learn from any of you willing share!
 
Texas-Mark if you think 14.2 is better for battery life or other reasons I am all ears.

Unless your lifepo4 cells are perfectly balanced, 14.6 will most likely trip the BMS with OV on a cell before reaching a total pack voltage of 14.6. And IMO 14.6v (3.65 per cell) it too high for longevity.
 
Unless your lifepo4 cells are perfectly balanced, 14.6 will most likely trip the BMS with OV on a cell before reaching a total pack voltage of 14.6. And IMO 14.6v (3.65 per cell) it too high for longevity.
Thank you, I will follow your lead with 14.2
 
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