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Self-discharge rate and SoC @ end of life for solar batteries
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<blockquote data-quote="Bob Smith" data-source="post: 529928" data-attributes="member: 35176"><p>I just talked to the technical support of Sunsynk and they told me the following</p><p></p><ol> <li data-xf-list-type="ol">SoC @ End of product line (should be life and not line) 40%. It means that the battery will only hold 40% of the initial capacity after 10 years.</li> <li data-xf-list-type="ol">The self-discharging figure is for a period of 1 month.</li> </ol><p></p><p>I am not too worried about the self-discharge because I will need to use the battery every night and in some days. However, I see from the specs I read from Growatt or Pylontech so far that only sunsynk is providing SoC info at 10 years. This is similar to the degration of PV panels. However, I am concerned that this will be 40% only after 10 years.</p><p></p><p>Does anyone have any info about other manufacturers, are they all in the same boat +/- some % ?</p><p></p><p>This means that it changes the calculation of the ROI a fair bit.</p></blockquote><p></p>
[QUOTE="Bob Smith, post: 529928, member: 35176"] I just talked to the technical support of Sunsynk and they told me the following [LIST=1] [*]SoC @ End of product line (should be life and not line) 40%. It means that the battery will only hold 40% of the initial capacity after 10 years. [*]The self-discharging figure is for a period of 1 month. [/LIST] I am not too worried about the self-discharge because I will need to use the battery every night and in some days. However, I see from the specs I read from Growatt or Pylontech so far that only sunsynk is providing SoC info at 10 years. This is similar to the degration of PV panels. However, I am concerned that this will be 40% only after 10 years. Does anyone have any info about other manufacturers, are they all in the same boat +/- some % ? This means that it changes the calculation of the ROI a fair bit. [/QUOTE]
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Self-discharge rate and SoC @ end of life for solar batteries
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