Roamer LiFePO4 Gen4 230Ah Seatbase battery -- "How I Done It" --

As above, there isn't enough space..

But as above @TallPaul_S made a bracket, but you need to be 100% is safe,secure and insulated.

Or just a more traditional MEGA fuse and fuse block...(Much bigger than MIDI)

I've gone for a twin MEGA fuse box connected to the battery

One 400A MEGA for the inverter

And

One 150A MEGA that supplies the MIDI sub fuse box..... And off that a ATC sub,sub fuse box for all the small circuits


12vP also do a nice combination MEGA and MIDI FBox, but it's OOS..... ATM.

.


Screenshot_20250327_070506_Chrome.jpg
 
Thanks. I bought a Blue Sea MRBF fuse, I’m now thinking there won’t be enough space to fit that. Damn. Regarding the stud, does it all have to come off, or can it be shortened and still used.
Thinking about it I bet there isn’t room to put cables to the stud. Need to find another place for the chassis connection.
You can find an earthing point in the same location under the drivers seat.
 
You can find an earthing point in the same location under the drivers seat.
I used the seat base bolt, with the paint ground off.

Or you can drill and nut and bolt to the seat base.

Or you can drill and rivnut to the B pillar.

Or you can drop through the floor grommet and drill and bolt into the lower chassis rail.

Or you can go a bit further back and drill and bolt, in the framework behind the first panel in the back just behind the d pillar at a low level.

Or you could just drill the floor and nut and bolt there, but that will mean getting up under all the trim panels off your tank or exhaust etc etc so that's a pain.

...

Because my new inverter cables are so fat and beefy...

I think I will be drilling and nut & bolt (with serrated washers) to the closest inner piece of chassis framework I can so that will most likely be behind the panel, that is behind the B pillar so basically right next to the inverter. Assuming I do place it there.

My main battery Meg chassis connection will be the seatbase bolts.... Again sand it down and make clean for a good connection..... Or I will take the feed to the base of the B pillar and drill and nut and bolt and no connection onto fresh body work.
 
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I used the seat base bolt, with the paint ground off.

Or you can drill and nut and bolt to the seat base.

Or you can drill and rivnut to the B pillar.

Or you can drop through the floor grommet and drill and bolt into the lower chassis rail.

Or you can go a bit further back and drill and bolt, in the framework behind the first panel in the back just behind the d pillar at a low level.

Or you could just drill the floor and nut and bolt there, but that will mean getting up under all the trim panels off your tank or exhaust etc etc so that's a pain.

...

Because my new inverter cables are so fat and beefy...

I think I will be drilling and nut & bolt (with serrated washers) to the closest inner piece of chassis framework I can so that will most likely be behind the panel, that is behind the B pillar so basically right next to the inverter. Assuming I do place it there.

My main battery Meg chassis connection will be the seatbase bolts.... Again sand it down and make clean for a good connection..... Or I will take the feed to the base of the B pillar and drill and nut and bolt and no connection onto fresh body work.
Thanks. Lots to decide between.
 
Factory Gnd under passenger seat can be shortened and still used for the original factory connections. I did this and used a lower profile but too.
I also used one of the seat base mounting studs for my main Gnd on both passenger and drivers side. It requires some preparation to do it properly. I did a how to thread:

 
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