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Lithium Iron Phosphate Battery technology - off gride

Q5: Welcome to Off Grid living.

Update to April 2026 I contacted an air conditioner expert and he thinks my settings are normal for my air conditioner.

This is good news.

Update Sep 22 - 2026

I think I found something.

On the machine it says "pay attention"

The unit defaulr low temperature condition (freezing)

This means the machine will NOT operate properly at 5 degrees.

The supplier did not change the parameters for me, for 5 degrees.

So I am instructed to change the defrost interval time, as defrost every 5 hours - whatever that means?

Please check operation manual? never received one?

So this is why my product never worked from the beginning.

Not my fault. Wrong default settings.

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The Lithium Iron Phosphate battery technology is great.

Thanks to Custom Lithium

The 310 Amp/hr battery cost me $5,000

Three 100|50 Solar Controllers $800

Solar panels cost me about $7,000

The air conditioner unit cost me about $6000

So the total cost to keep a room cool was about $19,000

Seems expensive hey?

The system is to run for 10 years, and in theory saves ( 0.25 x 24 x 365 x 10 = $22,000)

So you more or less break even on the first 10 years.

On the next block of 10 years, replace the batteries, and repair / replace compressor

Estimate costs $10,000

So you end up being $12,000 in front after 20 years of use.

Shalom

Li-Fe PO4 battery technology

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