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--- electrical:12v:b2b [2021/06/21 15:07]
frater_secessus [Kisae]
+++ electrical:12v:b2b [2021/06/25 10:43]
frater_secessus [Renogy]
@@ Line 93: / Line 93: @@
 [[https://amzn.to/2QYuswm|{{ https://m.media-amazon.com/images/I/41B+GcTmbyS._AC_UY218_.jpg?125}}]]
-  * DCC50S [[https://amzn.to/2QYuswm|50A model with MPPT charging]]. MPPT input limited to 25v.((per the manual)) - [[https://www.renogy.com/content/RBC50D1S-G1/RBC50D1S-G1-Manual.pdf|manual]] (pdf)  Total output is limited to 50A from either independent source (see below).
+  * DCC50S [[https://amzn.to/2QYuswm|50A model with MPPT charging]]. MPPT input limited to 25v.((per the manual)) - [[https://www.renogy.com/content/RBC3050D1S-G1/RBC3050D1S-Manual.pdf|manual]] (pdf)  Total output is limited to 50A from either independent source (see below).
 Note:  a [[https://amzn.to/3fSFDD2|30A combo model]] is also available
@@ Line 115: / Line 115: @@
 [[https://www.renogy.com/content/RBC3050D1S-G1/RBC3050D1S-Manual.pdf|Behavior is the same for the 30A model]] (pdf) except 15A + 15A //vs// 25A + 25A above.
+=== starter battery maintenance behavior ===
+> If the service battery is in float charge stage, the starting battery will be charged at the same time. The charging voltage is limited at 13.8V. The charging amperage is limited at 25A.((https://www.renogy.com/content/RBC3050D1S-G1/RBC3050D1S-Manual.pdf))
 ==== Kisae ====
 [[https://amzn.to/3fWJtbH|{{ https://m.media-amazon.com/images/I/81Hke9PigbL._AC_UL320_.jpg?125}}]]
@@ Line 130: / Line 132: @@
 ==== Redarc ====
+Redarc "dual input" DC-DC chargers have integrated MPPT controllers. They appear to do both buck and boost conversion as solar input voltage is 9v-32v.((https://www.redarc.com.au/Content/Images/uploaded/Manuals/BCDC%20Dual%20Input%20Instruction%20Manual.pdf))
 [[https://amzn.to/2TLGhtv|{{ https://m.media-amazon.com/images/I/71CqS887T8L._AC_UL320_.jpg?125}}]]
@@ Line 135: / Line 140: @@
   * [[https://amzn.to/3iZY3Uw|BCDC1225D]] - 25A
   * [[https://amzn.to/2TLGhtv|BCDC1240D]] - 40A
+  * [[https://amzn.to/3zFgmUZ|BCDC1240D]] - 50A
-The Redarcs appear to do both buck and boost;  solar input voltage is 9v-32v.((https://www.redarc.com.au/Content/Images/uploaded/Manuals/BCDC%20Dual%20Input%20Instruction%20Manual.pdf))
@@ Line 142: / Line 146: @@
 === solar+alternator behavior ===
-> The unit will always take as much power from the unregulated Solar input as it
+> The unit will always take as much power from the unregulated Solar input as it can before supplementing that power, up to the maximum rated output, from Vehicle power input((https://www.redarc.com.au/Content/Images/uploaded/Manuals/BCDC%20Dual%20Input%20Instruction%20Manual.pdf)),((https://www.redarc.com.au/Content/Images/uploaded/BCDC1250D%20Instruction%20Manual.pdf))
-can before supplementing that power, up to the maximum rated output, from Vehicle power input((https://www.redarc.com.au/Content/Images/uploaded/Manuals/BCDC%20Dual%20Input%20Instruction%20Manual.pdf))

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