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12-04-2023, 08:32 PM
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#1
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Established Member
Join Date: Sep 2023
Location: newburgh
Posts: 22
M.O.C. #33311
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Victron multiplus 2
I wanted to thank everyone for there help. I have another question. I was thinking about updated to a victron Multiplus 2. Im going to buy two 400 amp hour LItime batteries. I can’t afford other battery types. Should I go 12V or 24v for the batteries and the Multiplus? Thank you for your time.
Mod note: Moved to a new thread.
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12-05-2023, 05:43 AM
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#2
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Montana Master
Join Date: Dec 2021
Location: Northeast TX
Posts: 944
M.O.C. #30262
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With a 24V system you can save money on wire sizes on the DC side. This would be offset somewhat by the requirement of the mandated need for a 24V to 12V converter (i.e. transformer unit) to facilitate 12V house power. Check out the Explorist Life YouTube channel for detailed knowledge and explanation on the 24V vice 12V systems. There is a lot to consider when designing a system. It CAN be done though with careful planning. I've heard good reports on the LiTime batteries other than lack of cold weather protection which can be overcome with either battery warmers or installing in a heated compartment. Good luck and let us know how you come out.
Another thought is that both the Multiplus II and MPPT controller(s) will need to be programmed to the specific parameters of the LiFePo4 batteries you purchase.
__________________
 Lee, Edith, Lil' Bit & Cuddles
22 MHC 331RL, Surge Guard 35550, SumoSprings, Kodiak disc brakes, 412Ah Lithium, Gen 3 Goosebox, Sailun 85s
22 Ram 3500 CC DRW 6.7 CTD Herrin Hauler Classic Bed, 45 gal AUX tank
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12-05-2023, 06:20 AM
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#3
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Established Member
Join Date: Sep 2023
Location: newburgh
Posts: 22
M.O.C. #33311
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Im leaning towards 24v. Thank you for your response. It definitely helps my decision making.
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12-05-2023, 07:07 AM
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#4
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Montana Master
Join Date: Nov 2015
Location: Arlington
Posts: 1,522
M.O.C. #18081
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The only reason not to go 24v is because you are going 48v. Providing 12vdc for loads can easily be done using a Victron Orion.
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SOB
2015 Volvo VNL780 D13, iShift, 32k ET air hitch, Idle Free LiFePO4 APU
16.8KWhr LiFePO4, 2.52 kw solar, 10kva Victron split phase
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12-05-2023, 07:54 AM
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#5
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Established Member
Join Date: Sep 2023
Location: newburgh
Posts: 22
M.O.C. #33311
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Yeah, I think I am going 24v. Thank you for your reply.
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12-05-2023, 09:45 AM
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#6
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,369
M.O.C. #4831
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PNW Fireguy might be trying to tell you something with his 48V comment. If you look at his signature you can see he is heavy into solar and Lithium batteries.
__________________
Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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12-05-2023, 10:32 AM
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#7
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Established Member
Join Date: Sep 2023
Location: newburgh
Posts: 22
M.O.C. #33311
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That’s funny. Thank you
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12-05-2023, 06:24 PM
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#8
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Montana Master
Join Date: Nov 2015
Location: Arlington
Posts: 1,522
M.O.C. #18081
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Quote:
Originally Posted by Carl n Susan
PNW Fireguy might be trying to tell you something with his 48V comment. If you look at his signature you can see he is heavy into solar and Lithium batteries.
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 shhhhhhh
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12-05-2023, 07:59 PM
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#9
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,369
M.O.C. #4831
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Quote:
Originally Posted by PNW Fireguy
shhhhhhh |
Reduced wire size and future expansion capabilities speak for them selves.
__________________
Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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12-05-2023, 08:09 PM
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#10
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Established Member
Join Date: Sep 2023
Location: newburgh
Posts: 22
M.O.C. #33311
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I have been doing my homework in regards. I just came believe it is so simple to go 24v without any problems
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