australia:dcdccharging
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| australia:dcdccharging [2026/11/04 04:02] – [Introduction] gary1 | australia:dcdccharging [2026/11/04 04:02] (current) – gary1 | ||
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| * **a 25A charger will suffice for batteries up to 200Ah, however a 40-50A charger will be best for 100-300Ah batteries** | * **a 25A charger will suffice for batteries up to 200Ah, however a 40-50A charger will be best for 100-300Ah batteries** | ||
| * these require professional level wiring from your car battery to the DC-DC charger - and this should be near your auxiliary battery so you don't lose charge voltage | * these require professional level wiring from your car battery to the DC-DC charger - and this should be near your auxiliary battery so you don't lose charge voltage | ||
| + | |||
| + | |||
| + | <note warning> | ||
| + | ***do not use a AC-DC or solar charger directly onto your main car battery while it is connected to a DC-DC charger and a partly full auxiliary battery** | ||
| + | * the DC-DC charger will detect the voltage of the main battery charger and commence charging your auxiliary battery potentially at a rate higher than the charger to the main battery can provide, and this will result in your main battery going flat! | ||
| + | * also **if your DC-DC charger is connected to your vehicle ignition cable, don't leave your key in the ON position without vehicle running as this may drain your main battery** | ||
| + | * see [[https:// | ||
| + | </ | ||
| + | |||
| + | |||
| + | <note warning> | ||
| + | ***high current DC-DC chargers (eg. 100A) can only be used with high‑output alternators (12V – 180A+)** | ||
| + | * eg. large 4WDs, utes, trucks, etc | ||
| + | ***lower current DC-DC chargers (eg. 50A or less) can generally be used in most non-EV vehicles** | ||
| + | </ | ||
| + | |||
| <note tip> | <note tip> | ||
| Line 51: | Line 67: | ||
| *see also [[https:// | *see also [[https:// | ||
| </ | </ | ||
| - | |||
| - | <note warning> | ||
| - | ***do not use a AC-DC or solar charger directly onto your main car battery while it is connected to a DC-DC charger and a partly full auxiliary battery** | ||
| - | * the DC-DC charger will detect the voltage of the main battery charger and commence charging your auxiliary battery potentially at a rate higher than the charger to the main battery can provide, and this will result in your main battery going flat! | ||
| - | * also **if your DC-DC charger is connected to your vehicle ignition cable, don't leave your key in the ON position without vehicle running as this may drain your main battery** | ||
| - | * see [[https:// | ||
| - | </ | ||
| - | |||
| - | |||
| - | <note warning> | ||
| - | ***high current DC-DC chargers (eg. 100A) can only be used with high‑output alternators (12V – 180A+)** | ||
| - | * eg. large 4WDs, utes, trucks, etc | ||
| - | ***lower current DC-DC chargers (eg. 50A or less) can generally be used in most non-EV vehicles** | ||
| - | </ | ||
australia/dcdccharging.txt · Last modified: by gary1
