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Eskom again - Battery, charger and inverter recommendations
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<blockquote data-quote="chrisc" data-source="post: 914620" data-attributes="member: 746"><p>I have had very poor results from lead-acid batteries, both flooded and gel type batteries</p><p></p><p>Today I went to see a house in Kommetjie which has the same size inverter as I do and also 8 Pv panels. But he uses 1 x 200 a/h 24 volt lithium ion battery. When the 2 1/2 hour load shedding starts, it provides 320 watts of power for the full period, whereas unless I reduce the load to under 100 watts, it cuts off after 45 mins, and if I try 200 watts, I get 20 mins. I am using 8 x 105 a/h batteries. I did a test today and disconnected the incoming AC and also the PV panels. The battery voltage started off at 26.3 VDC. Within 5 mins it was down to 25 VDC and within 20 mins, down to 23.8 VDC. There was a 180 watt load which I made by switching on a computer and some lights. The inverter cuts off at 21.5 VDC</p><p></p><p>So that is what I am looking for right now. I have seen prices from R8000 to R18000 so need to do more homework.</p><p></p><p>The one it was suggested I look at is the Lithium Ion Life PO4 battery. It has a 10 year guarantee and can be discharged to a lower level than a lead-acid. </p></blockquote><p></p>
[QUOTE="chrisc, post: 914620, member: 746"] I have had very poor results from lead-acid batteries, both flooded and gel type batteries Today I went to see a house in Kommetjie which has the same size inverter as I do and also 8 Pv panels. But he uses 1 x 200 a/h 24 volt lithium ion battery. When the 2 1/2 hour load shedding starts, it provides 320 watts of power for the full period, whereas unless I reduce the load to under 100 watts, it cuts off after 45 mins, and if I try 200 watts, I get 20 mins. I am using 8 x 105 a/h batteries. I did a test today and disconnected the incoming AC and also the PV panels. The battery voltage started off at 26.3 VDC. Within 5 mins it was down to 25 VDC and within 20 mins, down to 23.8 VDC. There was a 180 watt load which I made by switching on a computer and some lights. The inverter cuts off at 21.5 VDC So that is what I am looking for right now. I have seen prices from R8000 to R18000 so need to do more homework. The one it was suggested I look at is the Lithium Ion Life PO4 battery. It has a 10 year guarantee and can be discharged to a lower level than a lead-acid. [/QUOTE]
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Eskom again - Battery, charger and inverter recommendations
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