Dual Battery Upgrade Started

[moenoodle]

Thanks Rob, this is great!! I have wanted to add a dual battery but was unsure of the best way. I will keep an eye out for how Jim's turns out as well.

thanks everyone!!
Brian

[wmknab]

Today was very productive!

Completed the wiring for my upgrade to dual batteries. Before and after pictures

Attachment 20294 Attachment 20295

Can you post some pictures of how you mounted the batteries? It looks like yours are side to side and mine is front to back.

Thanks

Bill Knab

[GENESIS]

FWIW......the Blue Seas Systems website has several wiring diagrams. Go here: https://www.bluesea.com/systems

They've got a pretty cool device that allows one to have both a deep cycle and starting battery setup. https://www.bluesea.com/systems/39/M..._ACR_SubSystem

No - I'm not a salesman for Blue Seas Systems. I just know their stuff is excellent IMHO.

Tom

[wmknab]

Rob
Im looking for how you physically mounted the 2 batteries.

Thanks

Bill

[Jim & Deb]

Today was very productive!

Completed the wiring for my upgrade to dual batteries. Before and after pictures

Attachment 20294 Attachment 20295

Adding 2 more pictures and a parts list.

[ATTACH=CONFIG]20640 [/ATTACH][ATTACH=CONFIG]20641

Parts:
Victron Energy Battery Monitor BMV-712 Smart
Victron Energy Wall mount enclosure for BMV or MPPT Control
Blue Sea Systems e-Series Selector Battery Switch MN:9001e
Blue Sea Systems ST Blade Fuse Block - 12 Circuits with Negative Bus and Cover MN:5026
Blue Sea Systems AMI/MIDI Safety Fuse Block MN: 7720
Blue Sea Systems AMI/MIDI Fuses 100 amp
Blue Sea Systems Common BusBars MN: 2127
Blue Sea Systems Insulating Cover for PN 2127 & 2128 MaxiBus MN: 2719
Ancor Marine Wire - Tinned Copper Battery Cable, 2 AWG (32mm²), Red
Ancor Marine Wire - Tinned Copper Battery Cable, 2 AWG (32mm²), Black
Ancor Marine Wire - Tinned Copper Battery Cable, 4 AWG (19mm²), Red
Ancor Marine Wire - Tinned Copper Battery Cable, 4 AWG (19mm²), Black

Terminals & Heat Shrink:
TEMCo ST0430 - 3/4" Marine Heat Shrink Tube 3:1 Adhesive Glue Lined 4 ft RED
TEMCo ST0310 - 3/4" Marine Heat Shrink Tube 3:1 Adhesive Glue Lined 4 ft BLACK
TEMCo RT3221 - 10 Qty 4 AWG 5/16" Hole Ring Terminal Lug - Tin Plated Copper
TEMCo RT3331 - 10 Qty 2 AWG 3/8" Hole Ring Terminal Lug - Tin Plated Copper
TEMCo RT4321 - 25 Qty 2 AWG 5/16" Hole Ring Terminal Lug - Tin Plated Copper

Tools:
TEMCo Lug Crimper Tool TH0012 - 8 AWG to 0000 AWG (4/0) DIELESS Indent Crimper
Channellock 911 9.5-Inch Cable Cutter

[Jim & Deb]

Hi Bill,

Added 2 more pictures and a material list. The new battery box is the same as OEM and installed as a mirrored image on opposite side of front storage compartment.

Jim

[DaveMatthewsBand]

I’m curious why you didn’t go ahead and mount the battery monitor inside the trailer next to the control panel?



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[Cate&Rob]

Rob
Im looking for how you physically mounted the 2 batteries.

Thanks

Bill

Hi Bill,

Exactly as Jim describes . . . Mirror image of the factory installation using another OEM box and vent system.

Rob

[bertschb]

I’m curious why you didn’t go ahead and mount the battery monitor inside the trailer next to the control panel?

It could be because it's the Bluetooth version of the battery monitor. He can use his phone to check the status. I mounted mine near the controls for the level up system but it didn't really matter because I use my phone.

[Jim & Deb]

I’m curious why you didn’t go ahead and mount the battery monitor inside the trailer next to the control panel?



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Hi,

Exactly for the reason Brian said in post #19 . I don't currently need to continually monitor the batteries and figured I can always move it later if I change my mind. Plus this location made the installation real simple.

Jim