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--- electrical:solar:panel-bank_ratio [2021/11/07 16:11]
frater_secessus [battery health] added Li charging info
+++ electrical:solar:panel-bank_ratio [2022/01/03 12:50]
frater_secessus [1:1] blog link
@@ Line 4: / Line 4: @@
 ===== 1:1 =====
 //1:1// == 200W solar + 200Ah battery bank.
-This generally considered the minimum, though it will likely work out fine in [[electrical:solar:output|sunny areas]] with light [[electrical:12v:loads|loads]].  It may not be enough in the winter when the sun is low and daylight short.
+This generally considered the minimum, though it will likely work out fine in [[electrical:solar:output|sunny areas]] with light [[electrical:12v:loads|loads]].  It [[https://mouse.mousetrap.net/blog/2020/07/02/the-problems-with-11-solar-charging/|may not be enough]] in the winter when the sun is low and daylight short.
 [[electrical:solar:rationing|Power rationing]] may be necessary.
@@ Line 12: / Line 12: @@
   * add [[electrical:12v:alt_and_solar|another source of charging]]
+  * use a battery chemistry that charges more efficiently and doesn't mind [[electrical:12v:psoc|PSoC]] (like [[electrical:12v:deep_cycle_battery#lithium_chemistries|lithium]])
   * fully-charging lead becomes possible with attentive panel tilt, requiring only 5.5hrs on MPPT and 6.4hrs on PWM.
   * fully-charging lead becomes possible with shallower cycling, like 75%.  This is the equivalent of the 2:1 systems below.

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