Rooftop A/C and solar - buildout/pricing in 2026 battery…
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Rooftop A/C and solar - buildout/pricing in 2026 battery density
Sorry if this has been talked about plenty. I found a few older posts referencing 600AH battery banks and 600W solar to run a dometic RTX2000 comfortably. The main thing about 2-3 year old posts...the battery bank was sized likely to the weight of the batteries at the time, and the cost. I'm on my 5th van build and it's time for A/C.
Here's what I am building out and I would like your thoughts:
2026 Ford Transit - High Roof - Standard length 148
628AH lithium - Dual 314AH "mini" batteries (just smaller footprint really)
Modspioneer 11000BTU unit (rtx 2000 clone)
MaxxFan 7500K
400W solar (maxxfan is a space eater)
melipron roof rack
RV hookup 30A to a Victron Energy 12/2000/80 MultiPlus (expensive...but dang 80A charging is nice)
I was thinking... why not just size it at 628AH, find the limit through testing, then add another 314AH battery (only $459) if I think it's required.
For my questions:
\- Will I be able to get 2 x 100W "slim" panels (left/right of maxx fan) and a single 200W panel between max/ AC unit without much fuss. Are people able to squeeze more in?
\- How serious is the "all batteries must be purchased at the same time" when expanding a battery bank?
\- How's you experience with 400W solar, 942AH, and AC without worrying?
#lifestyle
source
Sorry if this has been talked about plenty. I found a few older posts referencing 600AH battery banks and 600W solar to run a dometic RTX2000 comfortably. The main thing about 2-3 year old posts...the battery bank was sized likely to the weight of the batteries at the time, and the cost. I'm on my 5th van build and it's time for A/C.
Here's what I am building out and I would like your thoughts:
2026 Ford Transit - High Roof - Standard length 148
628AH lithium - Dual 314AH "mini" batteries (just smaller footprint really)
Modspioneer 11000BTU unit (rtx 2000 clone)
MaxxFan 7500K
400W solar (maxxfan is a space eater)
melipron roof rack
RV hookup 30A to a Victron Energy 12/2000/80 MultiPlus (expensive...but dang 80A charging is nice)
I was thinking... why not just size it at 628AH, find the limit through testing, then add another 314AH battery (only $459) if I think it's required.
For my questions:
\- Will I be able to get 2 x 100W "slim" panels (left/right of maxx fan) and a single 200W panel between max/ AC unit without much fuss. Are people able to squeeze more in?
\- How serious is the "all batteries must be purchased at the same time" when expanding a battery bank?
\- How's you experience with 400W solar, 942AH, and AC without worrying?
#lifestyle
source
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