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Which battery has longest life expectancy: lead acid, gel, Lithium ion?
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<blockquote data-quote="Vaal" data-source="post: 1151956" data-attributes="member: 24036"><p>The first quote she got with the 3.6kw inverter doesn't look "well" to me. The price difference between 3.6 and 5.5 kw Sunsynk inverters are minimal so why not go for the bigger? Three panels at optimal angle give (50v × 3) will be very close to the startup V of the inverter. More panels will do better on overcast days and startup earlier and stop later. NB As long as they doesn't exceed the max pv voltage (500v on my 5.5kw Sunsynk) but rather aim for 10% under max V.</p><p></p><p>I enjoy my 5.5kw Sunsynk with 10 × 535w JA panels at 10 deg angle, my 5 × 50V panels give me about 210 V dc so I can put all 10 panels on one input, but it works more than enough.</p><p></p><p>Does her roof aim North? If current finances is a issue she can install the 5 × JA's now with rails for more in the future. She might ask for a quote on 5 × 540W+ or bigger panels?</p><p>How heavy power user is she? Does she have "self discipline " to not use kettle, microwave and toaster all at the same time?</p></blockquote><p></p>
[QUOTE="Vaal, post: 1151956, member: 24036"] The first quote she got with the 3.6kw inverter doesn't look "well" to me. The price difference between 3.6 and 5.5 kw Sunsynk inverters are minimal so why not go for the bigger? Three panels at optimal angle give (50v × 3) will be very close to the startup V of the inverter. More panels will do better on overcast days and startup earlier and stop later. NB As long as they doesn't exceed the max pv voltage (500v on my 5.5kw Sunsynk) but rather aim for 10% under max V. I enjoy my 5.5kw Sunsynk with 10 × 535w JA panels at 10 deg angle, my 5 × 50V panels give me about 210 V dc so I can put all 10 panels on one input, but it works more than enough. Does her roof aim North? If current finances is a issue she can install the 5 × JA's now with rails for more in the future. She might ask for a quote on 5 × 540W+ or bigger panels? How heavy power user is she? Does she have "self discipline " to not use kettle, microwave and toaster all at the same time? [/QUOTE]
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Which battery has longest life expectancy: lead acid, gel, Lithium ion?
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