SethB
Ranger
A few years back I installed a CTEK 12v/12v 20a charger, same as CI supplies as an option.
This morning I came across this test relative to larger chargers and how their loads may impact the life of an alternator.
Conclusion: not a concern when driving (higher alternator rpm). Could be a concern when idling to charge.
(note expected max draw of the CTEK charger is 13.8v x 20a = 276w)
P.S. to non-electric-geeks; this is not cause to panic! CI engineering is solid, this 276w draw is modest, CI has included a safety margin. It does seem prudent to avoid lengthy idling with a depleted trailer battery, TV lights on, AC on max fan, seat heaters, and every other accessory turned on!
On the other hand, if you have a third battery system with its own high draw DC/DC charger this could become a real concern to pencil out.
This morning I came across this test relative to larger chargers and how their loads may impact the life of an alternator.
Conclusion: not a concern when driving (higher alternator rpm). Could be a concern when idling to charge.
(note expected max draw of the CTEK charger is 13.8v x 20a = 276w)
P.S. to non-electric-geeks; this is not cause to panic! CI engineering is solid, this 276w draw is modest, CI has included a safety margin. It does seem prudent to avoid lengthy idling with a depleted trailer battery, TV lights on, AC on max fan, seat heaters, and every other accessory turned on!
On the other hand, if you have a third battery system with its own high draw DC/DC charger this could become a real concern to pencil out.
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