230Ah vs 105Ah Under-Seat Lithium Battery - What Would You Do?

The 86kwh battery in a VW IdBuzz GTX is pretty big but wilts in the face of those new EV Dennis double decker buses silently stalking the streets of Northampton... 354 or 472kwh, borderline too much I reckon. 🤔 :thumbsup:
 
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@Scottishstu
If you do end up fitting an inverter, rather than using a portable set up, a 105Ah battery may seriously limit the size/power output of inverter that can be used.
Future proofing would be my vote.
 
I was in a similar quandary recently, but went with the bigger battery as changing in the future would be more work, partially if you had to move other components around to fit it.
 
I bought this one, but it's gone up about ÂŁ80 since I got mine in April:

Yeah it's under driver's seat, nothing else fits in there with it, so all other components are under passenger seat.

The guy who fitted it for me was quite impressed and went ahead and bought 3 for other conversions he was doing.
 
I bought this one, but it's gone up about ÂŁ80 since I got mine in April:

Yeah it's under driver's seat, nothing else fits in there with it, so all other components are under passenger seat.

The guy who fitted it for me was quite impressed and went ahead and bought 3 for other conversions he was doing.
That looks good value! Most brands at the moment have a few weeks lead times. I really need to make a decision haha

How was it secured down under the driver sea?

Yeah plan is if I go for the bigger battery it to have it under the driver seat and then all the other bits under the passanger bench seat.
 
It just has a strap over the top, nothing fancy. The plastic covers for the seat base didn't fit with it in there so had some boards made up instead. Pretty tidy set up now, the only annoyance with anything is the inverter on passenger side sits a little too far under the seat which makes plugging in a touch awkward.

Adding an AMT12-2 shortly too, to take care of the starter battery.
 
It just has a strap over the top, nothing fancy. The plastic covers for the seat base didn't fit with it in there so had some boards made up instead. Pretty tidy set up now, the only annoyance with anything is the inverter on passenger side sits a little too far under the seat which makes plugging in a touch awkward.

Adding an AMT12-2 shortly too, to take care of the starter battery.
Would you be able to take a photo of your set up when you get a chance?

Looking for inspiration
 
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Get one of these even if the battery has blue tooth and a decent phone app, mine's a Renogy but a decent shunt and display will act like a fuel guage for the battery state.
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Get at least one of these if you want to stay off grid, we managed a month last year in France, the shunt picture at the top shows what this picture was producing in solar charge input so nearly 20A.
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I've used a mild steel angle bracket from side to side and covered it in electrical tape to indicate polarity as well as make sure it doesn't short out the Roamer battery posts, obviously the seat is a bolt on item so that stays put in a bump.
These days I run a 2kw inverter as the 1kw one while not a toy was a bit of a tease and never quite big enough power wise, do be aware each 1kw going out of the battery is going to be 80A ish so fat cables and in parallel if you intend to produce a geuine 3kw from the inverter.
 
We have a 100Ah lithium and a similar setup to the OP re. Fridge/lights/heater etc. we also have a solar panel. We’ve never run out of battery power, but we do have to manage it when off grid. Minimum lights on etc. so a 105 is doable, the flip side being that no-one has ever complained about having too much battery capacity. I’d go for the 230Ah.
 
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