Originally Posted by john61ct
Yes the 12B switch needs to be used judiciously, but in a true emergency
is much better than scrambling for jumper cables
In this case, only room for four units, a Reserve that is rarely used is too much dead lead.
Plus the prospect expressing skepticism that Firefly G31 has less cranking oomph than the Optima, figure better going half-half on the "low SoC reserve" idea.
Not an ACR is too high a cutoff, only joins while charging
An adjustable LVD lets the owner tweak the SoC level to balance the ideal of keeping the bank whole as often as possible, and ensuring the cranking reserve sub-bank always has plenty of oomph left after the House loads' over drawing has triggered a split.
Yes agreed a reserve bank is dead lead.
But then again so is a Starter batt most of the time. For that matter jerry cans of fuel
, or a liferaft
could also be called 'dead' weight, atleast until you need them.
LVD, sure will work
. Not a regular way of doing it. It sounds a bit of a special solution to me. Im not convinced running both batts nearly down before disconnecting is a solution I like. But if thats how you want to have yours, ok.
Its getting too close to the Both battery
switch position, which is bound to get left in B position flatening Both batteries
. Or combining a good start batt to a depleated house bank. Lots of the Start batt will go into the flat house bank.
Why not just turn the house batt off and use the full Start to start your engine
Just the way I do it.