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What dollars per watt-hour actually means
When two power stations look similar, $/Wh is the fastest way to compare how much stored energy you get for the money.
The formula
$/Wh = street price ÷ battery capacity in watt-hours
Example: a 1,024 Wh pack at $512 is $0.50 per Wh. A 2,048 Wh pack at $1,024 is also $0.50 per Wh — same energy value, different size.
What it is good for
- Spotting which models are expensive for their capacity
- Comparing across brands without marketing noise
- Setting a budget in Wh first, then picking the cheapest honest $/Wh in that band
What it leaves out
- Output watts. A cheap pack that only puts out 300 W cannot run a microwave, no matter how good the $/Wh is.
- Weight. Camping and van use care about Wh per pound as much as $/Wh.
- Ports, UPS switchover, expandability, warranty, noise. Those matter; they are just not in this one number.
- Sale kits with solar panels. Bundle prices inflate $/Wh if you do not need the panels. Compare bare units when you can.
How we use it on this site
The homepage table defaults to sorting by $/Wh ascending. Blank prices stay blank — we do not invent a number to force a rank. If a brand page is sold out, that row will not have a $/Wh until a live price is verified again.