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otrfun's avatar
otrfun
Explorer II
Jan 11, 2021

60a DC-to-DC Charger Powered by 220a Alternator

Thinking about installing a 60a dc-to-dc charger in our truck camper. Have plans to power it with the 220a alternator in our truck. Under a worst case scenario it could load the alternator with an a...
grizzzman's avatar
grizzzman
Explorer
Jan 11, 2021
Like a 300 horse engine is producing anything near that at idle......
I have a 40 amp DC to DC charger. It is a buck-boost device. At 14 volts input will output 40 amps at 14.7 cost is 50 amps input. At 12.7 volts (gotta love "smart" charging) 34 amps at 14.2 volts. The 220 amp alt handled both at idle without issue.

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