So the Device has 243 L of volume under the hood, disregarding the extra height further back, filled with 154 L of battery (a reconfigured Volt pack), plus plumbing and wiring.The battery bay in my device is
- 600 wide - 900 long and 450 high at the low end
The battery is 550 wide - 800 long and 350 high - not including the pipes
So the Marlin has 191 L of volume available under the hood, assuming a motor which would fit in the transmission tunnel.The engine bay on the Marlin is
700 wide at the back, 440 wide at the front - 740 long and 450 high at the front
Does that include the fuel tank space? If not, why not?I could stuff in a total of 42 Leaf modules - from the measurements I have...
The aerodynamics are poor, but 300 Wh/km (480 Wh/mile) for a tiny car?... that would be 18 Kwh - but with the aerodynamics that might - just might get me about 60 km
If you could fit the motor in the rear, you should have room for 6-8 tesla modules in the engine bay. That's 31-41KWH. Might be enough.
While you guys were posting I was working through this, and thought that four Tesla Model S/X modules could be stacked in that space, for a total of 21 kWh at 91 V. Maybe five could be stacked in there for 26 kWh at 114 volts, depending on the construction of the support frame and box. Voltages can be doubled by module modification for 12s instead of 6s.The Tesla modules are
685 long 304 wide and 76 thick
So I should be able to fit six...
I think 6 would fit for sure, maybe 7 if the engine bay tapers enough, probably not 8. My thought was mount 6 on edge longitudinally, tight to the firewall and there could be room for a 7th laid flat on top. I admit I've never worked with them so I may be wrong. From pictures, the modules have plastic covers top and bottom and mount on the outside flange. That should allow them to be stacked tight together with a frame on the outside edge. All the terminals are at one end and the cells are water cooled so there shouldn't be a need for a bulky enclosure. Possibly just a plate on the bottom and a cover over the terminals. Cost and availability could make the whole thing a moot point though.I don't see six of them (137 V), because they need an enclosure, unless the hood rises enough to provide enough height with the stack as far back as possible in the space (which is where they should be, anyway).
On the other hand, Tesla feels that it is worthwhile to house them in a complete metal box...... All the terminals are at one end and the cells are water cooled so there shouldn't be a need for a bulky enclosure. Possibly just a plate on the bottom and a cover over the terminals. Cost and availability could make the whole thing a moot point though.
Additional height at the back of the area is certainly needed; Duncan can determine how much more height there is, and what will fit.I think 6 would fit for sure, maybe 7 if the engine bay tapers enoug., probably not 8. My thought was mount 6 on edge longitudinally, tight to the firewall and there could be room for a 7th laid flat on top.
Very true but it also forms the floor pan of the car from a manufacturer who is also under more scrutiny for safety issues than probably any other carmaker out there. I'm not arguing that the pack should have some protection though. Just trying to find options.On the other hand, Tesla feels that it is worthwhile to house them in a complete metal box...
If the height is 450 mm, there should be room for a mounting cage to bolt in all the vertical cells, the one flat on top and a tin cover around the whole thing. I wasn't suggesting they just be set in loose. For sure Duncan would have to see how many would actually fit.Additional height at the back of the area is certainly needed; Duncan can determine how much more height there is, and what will fit.
While it seems likely that they would be fine on edge, they do need to be supported from the edges (not just stacked) so there is space needed for structure.
The front two modules in 16-module cars (the higher-capacity variants of the Model S) are placed one above the other, and would serve as an example of appropriate spacing... but I don't know what that spacing is.
Not really - the Tesla battery is mounted to the floor of the car's body; it isn't the floor. Tesla Motors likes to show the drivetrain components looking like the battery box might be a structural floor (thus the inappropriate "skateboard" description), but they're leaving out the entire body in those photos, and the battery case isn't part of the structure.Very true but it also forms the floor pan of the car...
They're only special to EV fans; they are regulated just like everyone else. And other manufacturers (e.g. Nissan, in the Leaf) uses a similar battery box under the floor.... from a manufacturer who is also under more scrutiny for safety issues than probably any other carmaker out there.
I do understand that - sorry for the misunderstanding. I just meant that structure and enclosures take space, affecting what will really fit.I wasn't suggesting they just be set in loose.