High Current Wiring Complete
Today I received the last two pieces which has allowed me to complete the high current wiring. I needed two Cabec CB 70-8 Bell mouth lugs that will fit onto the Batrium shunt.
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Creating the Batrium <-> Victron CAN bus cable
While waiting for other parts, I figured now was as good a time as any to tackle the communication cable between the Batrium and Victron Cerbo unit. The Batrium Documentation doesn’t spell it out, but does give enough information and links to work it out. One end of the cable is standard ethernet as shown…
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Mounting the BMS, Fuse Box and Breaker
Now for the fun part. I started to play around with suitable positions of the BMS, Fusebox and Breaker (shunt trip). I am using 70mm welding cable I obtained from Metalland and terminating with Cabec 70-8 cable lugs and covering with heat shrink.
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Adding wires to Shunt Trip
My shunt trip operates from 48V making it easy to power. I added some wire with Ferrules, drilled a hole in the side of the breaker and fed the wires through. I also tied a not in the wire on the inside of the breaker to stop it pulling through.
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Starting on Balance Leads
After watching Lithium Powers youtube video I got motivated to start the BMS Balance Leads. I purchased some ring terminals and using some wire sheath I got from China months ago I started work.
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Assembling the Tower of Power v2.0
Now that all the threaded rod has been cut and the mounts secured to the two shelves it was time to start assemble the 7 towers. I assembled the towers using the highest rated module on cell 7 and working down to cell 1 and then working backwards till all 7 towers were complete. Unfortunately,…
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Threaded Rod
Tonight I spent about an hour cutting threaded rod to length (just about 1m) This should allow me to mount 200 modules if I use all 8 stacks. This requires 32m of threaded rod. I had all but the last 8m of it, so I cut it all and then test fitted a module on…
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Equipment Purchasing Time
I bit the bullet today and purchased the following equipment for my powerwall Victron Multiplus II 48V 5000 Victron Cerbo ET340 – 3 Phase Power Meter 3 Pole fuse holder/isolator
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Time to rethink the battery mounting
The original plan was to use a rack cabinet to hold all the modules, however, I now have to many to fit into the rack and so another solution needed to be found. I considered standard ‘shed’ style shelving however it didn’t solve the problem of having the modules locked away (so kids etc cant…
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More Modules and more delays
In early May I was contacted by someone on the Second Life Storage forum about the possibility of obtaining some more Leaf modules for my project.The price was good and in early May I travelled to Canberra to pick up 50 modules. (thanks goes out to the supplier for a great transaction!) I started testing…
