7.3 Godzilla Alternators and lithium dc/dc charging...
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Cross-Country
Joined: Jul 2022
Posts: 66
Likes: 9
From: Houston, TX
7.3 Godzilla Alternators and lithium dc/dc charging...
Hey Team Zilla...
I have a 2022 F350 Zilla that carries a 6000lb Host Cascade Truck Camper. I optioned the 397 Amp alternator / dual batteries. After some researching, the "secondary alternator" is a 157 amp alternator. I am going to be installing a Bluetti RV5 all in one lithium battery system into my camper. It has a dual 12vdc auxiliary where one leg can be used for solar charging and the other input for the DC/DC charging (or both can be from the alternator or generator). So my main question is this: Is there a direct swap out High Output alternator that is 250-300 amp that I can just swap the factory "secondary" 157 amp alternator out with? I am adding the max battery system I can fit in the camper...probably 3 of the Bluetti system 51.2volt 100 amp hour batteries and I want the max alternator charging I can fit under the hood....or...if anyone has a similar set up or uses the Victron setup..is that 397 total amp factory option sufficient for what you are doing or needing? I am looking for only the Godzilla / dc/dc lithium charging angles...so any type of RV or "other" lithium charging via the alternator experience is awesome....
I have a 2022 F350 Zilla that carries a 6000lb Host Cascade Truck Camper. I optioned the 397 Amp alternator / dual batteries. After some researching, the "secondary alternator" is a 157 amp alternator. I am going to be installing a Bluetti RV5 all in one lithium battery system into my camper. It has a dual 12vdc auxiliary where one leg can be used for solar charging and the other input for the DC/DC charging (or both can be from the alternator or generator). So my main question is this: Is there a direct swap out High Output alternator that is 250-300 amp that I can just swap the factory "secondary" 157 amp alternator out with? I am adding the max battery system I can fit in the camper...probably 3 of the Bluetti system 51.2volt 100 amp hour batteries and I want the max alternator charging I can fit under the hood....or...if anyone has a similar set up or uses the Victron setup..is that 397 total amp factory option sufficient for what you are doing or needing? I am looking for only the Godzilla / dc/dc lithium charging angles...so any type of RV or "other" lithium charging via the alternator experience is awesome....
FTE Community Team
Joined: Jan 2019
Posts: 10,769
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I don't have this answer, but someone who does will probably want to know:
- How much of your 300ah are you expecting to charge with the engine alternators? Like 40% or 10% or 100% or . . . ?
- How fast do you want to charge them? . . . as in "during a 1-hour drive? . . . or an 8-hour drive? . . . etc . . . ?
- How fast can they be charged safely?
- How much of your 300ah are you expecting to charge with the engine alternators? Like 40% or 10% or 100% or . . . ?
- How fast do you want to charge them? . . . as in "during a 1-hour drive? . . . or an 8-hour drive? . . . etc . . . ?
- How fast can they be charged safely?
Mountain Pass
Joined: Jun 2024
Posts: 123
Likes: 81
Can't answer your questions but please watch this video as it may save you from damaging or destroying your alternator if the BMS suddenly cuts current:
. I don't know if the Bluetti RV5 has any protection scheme for this scenario.
Thread Starter
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Cross-Country
Joined: Jul 2022
Posts: 66
Likes: 9
From: Houston, TX
The RV5 has two onboard dc/dc charging inputs...So I would think that they have some "protection" from a catastrophic loss of battery voltage feeding back into the alternator "systems"..... But I dont know for sure.
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