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Kill-a-Watt Bottle Cap

✦ Kill-a-WattUnusual13d ago
Sell price
22 keys, 42 ref
Buy price
19 keys, 44.88 ref
In keys
22.7 keys
In USD
$49.63 at the Steam key rate

Community price on backpack.tf: 25.0 keys, last changed 2024-03-30 (2.5y ago). The live quote above, 22.7 keys, is 9% lower and last moved 13d ago. They are different measures: the quote is what traders and bots are asking and bidding on the classifieds right now, and it moves for thousands of items every day; the community price is a suggestion accepted by vote, which changes only when someone argues it should. A quote well away from the vote is usually a price that is about to be re-argued. Community prices from backpack.tf, read under an hour ago.

Price history

106 observations

Interactive chart. Press the left and right arrow keys to move along the series, Home or End to jump to either end, Escape to clear.

The key axis converts at today's rate. Prices are recorded in metal, so a line that is flat in keys followed the key rate rather than standing still.

Kill-a-Watt Bottle Cap sell price, 2025-09-25 to 2026-10-09: 106 observations, from 25.2 keys to 25.2 keys. Sampled evenly across the range.
Observed (UTC)SellBuy
25 SEP 2025 · 03:29 UTC25.2 keys20.6 keys
19 OCT 2025 · 21:47 UTC22.9 keys20.6 keys
10 NOV 2025 · 02:02 UTC23.2 keys20.9 keys
10 DEC 2025 · 12:52 UTC24.1 keys20.0 keys
3 JAN 2026 · 18:55 UTC23.4 keys19.4 keys
22 JAN 2026 · 07:45 UTC21.3 keys16.5 keys
17 FEB 2026 · 20:40 UTC21.0 keys18.2 keys
15 MAR 2026 · 22:08 UTC18.8 keys12.1 keys
4 APR 2026 · 02:30 UTC20.6 keys11.6 keys
30 APR 2026 · 00:30 UTC19.2 keys14.2 keys
17 MAY 2026 · 20:34 UTC20.0 keys14.1 keys
8 JUN 2026 · 10:31 UTC19.9 keys14.6 keys
22 JUN 2026 · 02:12 UTC19.9 keys15.2 keys
19 JUL 2026 · 22:44 UTC18.4 keys16.0 keys
10 AUG 2026 · 17:11 UTC20.1 keys17.5 keys
21 AUG 2026 · 12:08 UTC20.0 keys17.4 keys
22 AUG 2026 · 16:08 UTC20.1 keys17.5 keys
24 AUG 2026 · 14:09 UTC20.3 keys17.6 keys
25 AUG 2026 · 14:09 UTC20.5 keys17.8 keys
29 AUG 2026 · 16:09 UTC20.6 keys17.9 keys
31 AUG 2026 · 06:09 UTC20.6 keys18.0 keys
1 SEP 2026 · 22:08 UTC20.5 keys17.8 keys
3 SEP 2026 · 12:10 UTC20.4 keys17.7 keys
5 SEP 2026 · 18:08 UTC20.6 keys17.9 keys
7 SEP 2026 · 06:08 UTC21.2 keys18.5 keys
10 SEP 2026 · 00:09 UTC21.3 keys18.5 keys
11 SEP 2026 · 12:09 UTC21.5 keys18.7 keys
13 SEP 2026 · 00:09 UTC22.0 keys19.1 keys
14 SEP 2026 · 00:08 UTC22.4 keys19.5 keys
15 SEP 2026 · 12:08 UTC22.6 keys19.7 keys
17 SEP 2026 · 12:08 UTC23.4 keys20.4 keys
18 SEP 2026 · 12:09 UTC23.5 keys20.4 keys
20 SEP 2026 · 04:08 UTC23.9 keys20.7 keys
23 SEP 2026 · 10:08 UTC21.1 keys18.3 keys
24 SEP 2026 · 16:08 UTC19.7 keys17.1 keys
29 SEP 2026 · 20:09 UTC22.7 keys19.7 keys
5 OCT 2026 · 21:09 UTC24.5 keys21.3 keys
7 OCT 2026 · 09:09 UTC24.2 keys21.1 keys
8 OCT 2026 · 09:10 UTC25.0 keys21.7 keys
9 OCT 2026 · 23:10 UTC25.2 keys21.9 keys

Price history in numbers

106 readings since 25 Sep 2025

Over the last 30 days the Kill-a-Watt Bottle Cap's sell price ranged from 19.1 keys to 25.2 keys and is up 14.1% after 31 moves. Over a year it ranged from 17.7 keys to 30.1 keys (up 9.8%). Today's 25.2 keys sits in the middle of its range: the lowest we have recorded is 17.7 keys (8 Jul 2026) and the highest 30.1 keys (23 Dec 2025). The price has moved 104 times since we began recording it — about once every 4 days.

WindowLowHighChangeMovesReadings
30 days19.1 keys25.2 keys+14.1%3132
90 days18.4 keys25.2 keys+36.8%7071
a year17.7 keys30.1 keys+9.8%101103

Details

SKU31042;5;u56
Last price change2026-09-29 20:09 UTC
Key rate when recorded63.44 ref

Same effect, other items

the effect across the catalogue
ItemValueUpdated
Kill-a-Watt Antlers1,111 keys11mo ago
Kill-a-Watt Virtual Viewfinder1,100 keys11mo ago
Kill-a-Watt Polar Pullover1,100 keys11mo ago
Kill-a-Watt Exquisite Rack760 keys20d ago
Kill-a-Watt Head Prize387 keys11d ago
Kill-a-Watt Blighted Beak303 keys14d ago
Kill-a-Watt Brainiac Hairpiece283 keys12d ago
Kill-a-Watt Legendary Lid283 keys12d ago
Kill-a-Watt Decorated Veteran261 keys18d ago
Kill-a-Watt Bonk Boy265 keys11d ago

Other effects on the Bottle Cap

same item, different effect
ItemValueUpdated
Burning Flames Bottle Cap110 keys13d ago
Distant Dream Bottle Cap89.2 keys12d ago
Aurora Skies Bottle Cap87.7 keys13d ago
Scorching Flames Bottle Cap82.4 keys16d ago
Purple Energy Bottle Cap80.0 keys24d ago
Eyes of Molten Bottle Cap77.9 keys26d ago
Eerie Kraken Bottle Cap77.1 keys12d ago
Sunbeams Bottle Cap77.2 keys12d ago
Distant Drift Bottle Cap71.8 keys13d ago
Polar Forecast Bottle Cap64.8 keys7mo ago

Priced similarly

across the catalogue