Set 71805
Jay's Mech Battle Pack
Retired Nov 2025Retail price$9.99What LEGO charged
Worth now$17.48Based on 15 recent sealed sales
Asking now$19.99Typical price on 27 eBay listings
vs retail+75%Worth more than it cost
Holding value
75% above its $10 retail price. Steady rather than spectacular.
How much is LEGO 71805 Jay's Mech Battle Pack worth?
LEGO 71805 Jay's Mech Battle Pack is worth about $17.48 sealed right now, based on 15 recent sealed sales. That's 75% above its $9.99 retail price. It came out in 2024 with 78 pieces and 4 minifigures. It was retired in Nov 2025. Its typical asking price has held steady over the last 82 days. We last checked it 9 days ago.
Price history
Value history
Oct 17$2027 listings
- Lowest
- $19
- Highest
- $20
- Change
- 0%
- Asking vs retail
- +100%
26 observations · median asking · rechecked 8× daily
Should you buy it?
27 listings. Solid number.
If you bought it to resell
Sells sealed for$17
Marketplace fees · 15.25%−$3
Payment processing · 2.9% + $0.30−$1
Shipping · est. from 78 pieces−$5
Reaches you$9
Pay no more than$7
For a 30% return at your costs. Change them and every figure on the site follows.
What it actually sold for
Sealed
$17
15 sold in six months · $14–$20Used
$10
1 sold in six monthsSellers are asking 14% more than buyers actually paid. The $20 figure above is a ceiling; this is the floor to negotiate toward.
Completed BrickLink transactions over the last six months. Real sales, not asking prices.
Set details
- Set number
- 71805
- Theme
- Ninjago
- Released
- 2024
- Status
- Retired Nov 2025
- Pieces
- 78
- Minifigures
- 4
- Retail price
- $9.99
- Value per piece
- $0.256
- Price confidence
- high · 27 listings
- Last checked
- 9 days ago
Where these numbers come from
eBay27 live listingsThe asking price here — the median of what sellers want right now, $20. Last checked Oct 17.See the listings →BrickLink15 completed salesWhat it actually sold for — $17 across six months of real transactions. Last checked Oct 22.Open the price guide →Catalogue78 piecesPiece counts, minifigures, release year and retail price come from Rebrickable and Brickset. Retail was $10.See the catalogue entry →
eBay links are affiliate links — if you buy after clicking, we earn a small commission at no cost to you, and that is what pays for the site. BrickLink has no such programme, so those are plain links. Neither changes what we show or what we say about it.
How to read this. The value is the median of live sealed listings, after removing instructions, empty boxes, used sets, multi-set lots and implausible outliers. Real sale prices usually land below asking, so the buy-below figure is deliberately the conservative end of the range.
More Ninjago sets from around 2024
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▲ 25% vs retailRetired71813 · 2024Wolf Mask Shadow DojoNinjago · 1,190 pcs$15045 listings · retail $120Flat since retirement