Differences

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--- electrical:12v:self-jumpstarting [2020/06/23 11:50]
frater_secessus [jumping from the house bank]
+++ electrical:12v:self-jumpstarting [2020/08/14 13:08]
frater_secessus added SunSaver
@@ Line 9: / Line 9: @@
 It will be gentlest on the system to combine the batteries and allow the starter battery to come up a bit instead of immediately attempting to start.
+This will be easiest if one already has some kind of [[electrical:12v:alternator#isolators|isolator/combiner]] setup. If not, one can run jumper cables from the house bank, or physically remove the house bank and carry it to the starter battery area.
 ==== manual switches ====
@@ Line 19: / Line 19: @@
 ==== voltage sensing relays ====
-It is common for VSRs to have a button to combine the batteries for self-jumpstarting.
+SomeVSRs have a button to combine the batteries for self-jumpstarting.
 ==== relays ====
@@ Line 30: / Line 30: @@
 [Note from secessus:  AFAIK none of the DC-DC chargers allow self-jumpstarting.  If anyone knows otherwise, please point me to the documentation.  Thanks!]
+==== dual charging solar charge controllers ====
+Some charge controllers like the [[https://amzn.to/2PPTD2L|Morningstar SunSaver Duo]] can, for example,  charge the start battery with 10% of solar harvest and the house battery with 90% using different charging profiles.  As with DC-DC above, it's not self-jumpstarting but can help prevent the dead starter battery.

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