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1000 AH van build DIY Batteries, looking at 24V, What alternator do I need?

peallen

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Apr 12, 2020
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if i can setup a dedicated alternator, ( i don't even know if that's possible)
1. which one for 2019 MB sprinter 4x4
2. best place to get it done right.
3. its going to be a 24v 1000ah setup
4. hold me, i'm scared!
 
if i can setup a dedicated alternator, ( i don't even know if that's possible)
1. which one for 2019 MB sprinter 4x4
2. best place to get it done right.
3. its going to be a 24v 1000ah setup
4. hold me, i'm scared!

It is possible, but not cheap. I can't say much more than that other than the marine industry is a good place to start your search for a custom 24v alternator.

The easier and probably much cheaper way is to get a DC-DC "battery to battery" charger (Victron and Sterling both make 12v to 24v versions). This way you can charge your 24v lithium battery from your vehicles 12v charging system, and not risk harm to the battery or the alternator.

edit: Wait! Holy HELL! When I first read your post I read 24v 100ah. Now I see you said 1000Ah
You are going to put a 25.6 Kilowatt battery bank in a fan?!? That's crazy, what do you plan to use it for? How do you plan to keep it charged? What are you biggest energy consumers?
 
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Thats going to be a massive setup but for sure on the alternator contact Jonathan Smith he builds some big alts that could handle some of your demand.
 
if i can setup a dedicated alternator, ( i don't even know if that's possible)
1. which one for 2019 MB sprinter 4x4
2. best place to get it done right.
3. its going to be a 24v 1000ah setup
4. hold me, i'm scared!

1000 amp hours @ 24 volts = 25.6 kwh.
That will power my home for ~2 days.
Thats a big honkin mobile setup.
I multiply by 25.6 because I assume you are going with lifepo4, confirm?
 
I just bought 40 Fortune cells $4600, 10 bms from ali for 520. Want ducted low profile AC, possible incinolet toilet ideally cooktop etc. but may go with diesel webasto cooktop
 
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1000 amp hours @ 24 volts = 25.6 kwh.
That will power my home for ~2 days.
Thats a big honkin mobile setup.
I multiply by 25.6 because I assume you are going with lifepo4, confirm?
yes the new Fortune cells that Will flipped over. Cost around 500 each and better than battleborns, so easy to build too.
 
How are you gonna charge them? An alternator idling aint gonna cut it.
 
How are you gonna charge them? An alternator idling aint gonna cut it.
1000 to 1400 watts of solar ideally. May hookup with TinyWatts solar, not sure he'll work with DIY batteries though. I love there new deck and can put AC under back storage. 1586866403016.png
 
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It is possible, but not cheap. I can't say much more than that other than the marine industry is a good place to start your search for a custom 24v alternator.

The easier and probably much cheaper way is to get a DC-DC "battery to battery" charger (Victron and Sterling both make 12v to 24v versions). This way you can charge your 24v lithium battery from your vehicles 12v charging system, and not risk harm to the battery or the alternator.

edit: Wait! Holy HELL! When I first read your post I read 24v 100ah. Now I see you said 1000Ah
You are going to put a 25.6 Kilowatt battery bank in a fan?!? That's crazy, what do you plan to use it for? How do you plan to keep it charged? What are you biggest energy consumers?
I found thanks to onemorebattery the link! 2500 though its a beast and they specialize in MB.
 
1000Ah! Nice.
You have GOT to show us some pics of your build.
i sign today, mercedes mgr coming to facility. I lost foot 4 months ago at Portland Health and rehab.
MERCEDES-BENZ USA, LLC. ONE MERCEDES-BENZ DR SANDY SPRINGS, GA 30328 MERCEDES-BENZ OF WILSONVILLE 25035 SW PARKWAY AVE WILSONVILLE, OR 97070
Dealer Code: 66126 Region: WESTERN VPC: Long Beach Code Description Price
MODEL: 2019 M2CA7X $44,990
147 Arctic White VF6
Leatherette Black $55 Options
C0A Basic Comfort Package 2 $690
SK1 Comfort Headrest-Passenger's Seat SK0 Comfort Headrest-Driver's Seat
SE5 Lumbar support, driver's seat SE4 Lumbar support, co-driver's seat
LC4 Comfort overhead control panel
C01 C01 - Driver Convenience Package $1,210 JW8 Attention Assist JA7 Blind Spot Assist F68 Exterior mirror heated and electr. adjustable F64 Electrically Folding Exterior Mirrors FZ9 Two additional master keys FJ1 I/P Hinged Lid-Center Stack Bin E46 12V Power Outlet- Driver Seat Base C6L Multifunction Steering Wheel
C02 C02 - Premium Package $1,240 JF1 Rain sensor JB4 322 Active Lane Keeping Assist FM3 Wet Wiper System BA3 Brake Assist Plus
C03 C03 - Premium Plus Package $2,530 XM4 ACOUSTIC PACKAGE JK5 Instrument Cluster with Colourdisplay (Highline) JA9 Traffic Sign Assist E4M MBUX Multimedia System with 10.25" Touchscreen E1S Satellite Radio E1G Intelligent Navigation E1B Tray for Smartphones incl. wireless charging EX9 Free map data updates for 3yrs ET4 Distance Regulator Distronic Plus CL3 Leather Steering Wheel X30 Low & High Range 4x4 Package $7,800 ZG3 4x4 High Range w/Low Range Transfer Case T75 Door mounted assist handles, driver &passenger X67 X67 - Chrome Grille Package $270 FK3 Chromed Trim Radiator Grille CN2 Radiator Grille Frame in Vehicle Color X68 X68 - Comfort Plus Package $1,610 SF2 Co-driver's seat electrically adjustable SF1 Driver's seat electrically adjustable H16 Heated Driver Seat H15 Heated Co-Driver Seat D13 Roof Rails $284 D93 Deletion of Cargo Partition (Standard) ED8 Parametric Special Module (PSM) Preparation H1I Front-to-Rear Outlet Instrument Panel JB6 PARKING PACKAGE WITH 360 DEGREE CAMERA $733 LA1 High Beam Assist $259 L13 FOG LAMP WITH CORNERING LIGHT FUNCTION $188 RD9 Tires, Unspecified Brand V43 WOOD FLOOR WITH 6 D-RINGS $400 Z4X Production in Charleston 04.06.2020 18.21.41 SUBTOTAL $62,259 DESTINATION &DELIVERY $1,195 TOTAL $63,454
3000 off 3 months nopay 1 payment covered, 0% interest. getting 33s bfg ko2, ( i wanted 35s but adaptive cruise wont work with bigger than 33s) rims, amp steps etc. they storing it at lot till i get out of rehab of this shithole. i was aloud to spend 6000 in addons at 0% so went with em P
 
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