How power station "sales" really work — and how to tell a real deal

If you've shopped for a portable power station, you've seen it: every product is on sale, all the time. A station "lists" for $999, sells for $449, and the banner says 55% off — this week, last week, and next week.

This isn't a scandal; it's just how the category prices. Brands run continuous, overlapping sale events (spring sale, Memorial Day, Prime-adjacent, holiday), and the "list price" mostly exists to make the discount math look good. Outdoor reviewers have noted for years that list prices in this category are effectively meaningless. What matters is the transaction price over time — and that's exactly what this site records, daily, from the official Anker SOLIX, Jackery, BLUETTI, and EcoFlow stores.

Three checks that separate a real deal from a Tuesday

1. Compare against the product's own recent history, not the list price. A discount only means something relative to what the product usually sells for. We compute each product's trailing 90-day median price and show today's price against it. If a "55% off" price is 2% below its 90-day median, you're looking at normal pricing with festive decoration. If it's 15% below, that's a genuinely unusual window.

2. Check the all-time low. Every product page here shows the lowest price we've recorded and when it happened. If today's price matches it, buy with confidence — waiting rarely beats an all-time low by much in this category, and stock of older models disappears without warning.

3. Normalize by capacity before comparing across products. A $449 station and a $649 station aren't comparable until you divide by battery size. Dollars per kWh is the single most useful number in this market. Small stations (under 500Wh) always cost more per kWh; the sweet spot for value is usually in the 1–4kWh range. Our comparison table sorts every tracked product by it.

What the badges on this site mean

• All-time low — at or below the lowest price we've ever recorded for it.
• Good deal — at least 10% below its own 90-day median.
• Typical price — within ±10% of its 90-day median. The banner may still say "SALE."
• Above typical — more than 10% over its median. It happens more than you'd think.

We show the store's advertised discount right next to the discount measured against the 90-day median, and let the two numbers speak for themselves.

When are the genuinely good windows?

We'll answer this properly with our own data as our history grows. The honest general answer: big sale events cluster around Prime Day (July), Black Friday/Cyber Monday, and model-refresh moments when brands clear the outgoing generation. That last one is the quiet gem — when a "v2" launches, the original often hits its floor price. New-generation launches are listed on our product pages as they appear in the stores.