How long will it actually last?

Lay out your day — drives, stops, lid opens, the weather — and see how your ROLi Battery holds up over 24 hours, or the week.

Your setup

Your day, hour by hour

0.0 of 24 hours planned
Repeat Mon–Fri, back to back
No reset to full each day — shows if it actually holds up all week
Result
Build your day to see the result
⚠ This is a planning estimate, not a guarantee. It's built from real spec sheets and field-tested data, but every setup is different.
Most likely Realistic range Driving (charging)
How we calculate this ▾

How it works: we lay out your day in short blocks and track the battery's charge as it moves through them. Parked, the fridge draws power based on how hard the compressor's working at that temperature. Driving, the fridge runs straight off the 12V socket and tops the battery up at the same time — no double dipping.

What we've actually tested: a D10 on one DB01, run for a full working week — real commute, nine hours parked at a worksite, overnight in the cold. Not a lab, not a spec sheet. That's what the tight part of the range is built on.

Why the range widens: above 25°C we calculate from the compressor's own spec sheet rather than a fresh field test, so we build in extra headroom instead of guessing. The Roam (D23) runs on that same tested platform.

What moves the number: how much you're opening the lid, what's in the fridge, airflow around it, the battery's age, 12v socket output. This is your best planning number, not a promise.

Ready to have a proper look?