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Batteries 50V vs 100V
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<blockquote data-quote="Bob Smith" data-source="post: 537418" data-attributes="member: 35176"><p>I did wonder this but I have noticed similar things for all LV and all HV.</p><p></p><p>but then when looking at one battery. the HV has already a higher voltage to start with. This means the cells inside are also connected differently?</p><p></p><p>Anyway, this thread is about why to select a HV rather than LV (or vice versa). How do you decide which one you need?</p><p></p><p>My conclusion so far is that if you need higher dis/charge power and you know you need at least 2 batteries for increase capacity, then you need to go for HV batteries.</p><p></p><p>The, "they charge (and discharge) more quickly". Since they can charge or discharge at higher power, then for the same kWh of capacity then they will "fill" or get empty more quickly if you do not need that type of power.</p><p></p><p>As I have an electrical underfloor heating, I believe, so far, that it makes sense to have HV batteries. Experience will tell if then I have enough storage. If not I will need to buy more but then my 37 panels may not be enough to charge them....</p></blockquote><p></p>
[QUOTE="Bob Smith, post: 537418, member: 35176"] I did wonder this but I have noticed similar things for all LV and all HV. but then when looking at one battery. the HV has already a higher voltage to start with. This means the cells inside are also connected differently? Anyway, this thread is about why to select a HV rather than LV (or vice versa). How do you decide which one you need? My conclusion so far is that if you need higher dis/charge power and you know you need at least 2 batteries for increase capacity, then you need to go for HV batteries. The, "they charge (and discharge) more quickly". Since they can charge or discharge at higher power, then for the same kWh of capacity then they will "fill" or get empty more quickly if you do not need that type of power. As I have an electrical underfloor heating, I believe, so far, that it makes sense to have HV batteries. Experience will tell if then I have enough storage. If not I will need to buy more but then my 37 panels may not be enough to charge them.... [/QUOTE]
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