DEWALT 20V MAX 4 Ah Lithium Ion Battery 2-Pack (DCB240-2)
Great price
$126.41 is 26% below the $171.63 it normally sells for.
- Now
- $126.41
- Normally
- $171.63
- Lowest in 144 days
- $86.01(Oct 29)
- Highest
- $200.00
Where today's price sits
Prices change. Confirm the price on Amazon before you buy. TrackPin may earn a commission if you buy, at no cost to you; it never changes a verdict.
Amazon price jumps and real deals, posted on X: @trackpindeals (opens in a new tab)
The listing's crossed-out price
Holds upThe listing shows
crossed out: List $219.00 −42%
Against its normal price
−26% vs $171.63
List $219.00 (−42%) holds up: today's price is 26% below normal.
The crossed-out price is the reference shown on the listing. We don't know how it was set; we only compare it with prices we've observed. How we check →
Price history
Tracked since Jun 22 · 144 days · 127 price changes
Ahead of Black Friday 2026 (Nov 27), it is already 26% below its normal price of $171.63. DEWALT 20V MAX 4 Ah Lithium Ion Battery 2-Pack (DCB240-2) price history, checked Nov 13, 2026: current price $126.41, normal (typical) price $171.63, average $159.41 over 144 days, lowest $86.01 (Oct 29, 2026), highest $200.00 (Sep 17, 2026).
Loading the price chart.
- Price
- Not checked for 3+ days
- Normal $171.63
- 5% or more below normal
How often does it drop below normal?
In the 144 days we've tracked it, it stayed 5% or more below today's normal price for an hour or more 5 times, typically lasting about 5 days. The last time ended Nov 2. It's below normal right now, for less than an hour so far.
A count of what happened, not a prediction.
Other ways to buy
New from
$126.41
J farmsFulfilled by Amazon · Seller rating 96% of 865
Used from
$158.40
Amazon ResaleFulfilled by Amazon
All 8 offers
| Seller | Condition | Price | FBA | Seller rating |
|---|---|---|---|---|
| J farms | New | $126.41 | Yes | 96% of 865 |
| Amazon Resale | Used - Like New | $158.40 | Yes | — |
| Midwest Estore | New | $158.40 | No | 88% of 2,046 |
| Bargains by Mail | Used - Like New | $165.40 | Yes | 94% of 62 |
| Amazon.com | New | $174.10 | Yes | 100% |
| Bargains by Mail | Used - Like New | $174.59 | Yes | 94% of 62 |
| NK Happiness Store | New | $179.49 | Yes | 80% of 46 |
| EDWOLA LLC | New | $179.49 | No | 97% of 318 |
More real deals in Tools & Home Improvement
Great price: −86% vs normalNOMEY 3-IN-1 Portable Air Conditioners 4 Modes & 3 Speeds, Waterless Alert System, 12H Timer, 1 Gal Detachable Water Tank, 4 Ice Packs, Remote, 70° Oscillation Windowless Evaporative Air Cooler
Rated 2.2(14 ratings)Lowest in 43 days
Unusually large drop. Confirm on Amazon.
$26.81
normally $203.60
Great price: −70% vs normalIMP3103 - Impact Products 28 Lambswool Duster
Rated 3.2(31 ratings)
Unusually large drop. Confirm on Amazon.
$41.59
normally $140.76
Great price: −66% vs normalDEWALT DWST83294-1 Tough System 2.0 Medium Size Tool Box, DS300, Stacked Storage
Rated 4.4(172 ratings)
Unusually large drop. Confirm on Amazon.
$46.68
normally $139.39
Great price: −60% vs normalProxxon KS 230 Scie circulaire fixe (Import Allemagne)
Rated 4.4(891 ratings)Lowest in 41 days
Unusually large drop. Confirm on Amazon.
$99.99
normally $254.07
Great price: −57% vs normalM MZG Heavy Duty Rolling Garment Rack 3 Tiers Adjustable Wire Shelving with Rod, Storage Closet Clothing Rack with Drawers Dark Grey, 15.8" D x 35.5" W x 72.4" H
Rated 4.6(1,078 ratings)Lowest in 45 days
$40.44
normally $95.59
Great price: −55% vs normalIRWIN TAP WRENCH #1/4-1"ADJ HNDL
Rated 3.3(53 ratings)Lowest in 45 days
$34.99
normally $78.46
Get this as JSONThe same verdict and prices, from the TrackPin API.
curl https://trackpin.co/api/v1/product/B0866BYSLM \
-H "x-api-key: $TRACKPIN_API_KEY"const res = await fetch("https://trackpin.co/api/v1/product/B0866BYSLM", {
headers: { "x-api-key": process.env.TRACKPIN_API_KEY },
});
const product = await res.json();
console.log(product.verdict.label, product.price.reference_cents);import os, requests
r = requests.get(
"https://trackpin.co/api/v1/product/B0866BYSLM",
headers={"x-api-key": os.environ["TRACKPIN_API_KEY"]},
)
product = r.json()
print(product["verdict"]["label"], product["price"]["reference_cents"])This is exactly what the API returns for this product. Free keys include 100 requests a day.
Request a key{
"asin": "B0866BYSLM",
"title": "DEWALT 20V MAX 4 Ah Lithium Ion Battery 2-Pack (DCB240-2)",
"image": "https://m.media-amazon.com/images/I/611v3ohtubL._AC_SL500_.jpg",
"currency": "USD",
"category": "Home Improvement",
"category_label": "Tools & Home Improvement",
"in_stock": true,
"price": {
"current_cents": 12641,
"reference_cents": 17163,
"discount_pct": 26.35,
"is_deal": true,
"observed_at": 1794600091348,
"changed_at": 1794598297815,
"checked_at": 1794600091348,
"source": "stored"
},
"verdict": {
"label": "great",
"text": "Great price",
"pct_vs_normal": 26.35,
"evidence": "strong",
"stale": false,
"suspect": false,
"steady_since": null,
"sentence": "Great price. $126.41 is 26% below the $171.63 it normally sells for."
},
"listing_claim": {
"label": "List:",
"listing_reference_cents": 21900,
"claimed_pct": 42,
"real_pct": 26.35,
"class": "holds_up",
"observed_at": 1794600094135
},
"stats": {
"min_cents": 8601,
"max_cents": 20000,
"avg_cents": 15941,
"history_days": 144,
"price_levels": 301,
"price_changes": 127,
"distinct_prices": 25,
"lowest_at": 1793290865211
},
"history": [
{
"price_cents": 16918,
"from": 1794479237323,
"to": 1794479237323
},
{
"price_cents": 17410,
"from": 1794480813583,
"to": 1794565267121
},
{
"price_cents": 16674,
"from": 1794565792689,
"to": 1794565792689
},
{
"price_cents": 17410,
"from": 1794567060851,
"to": 1794588126613
},
{
"price_cents": 12641,
"from": 1794598297815,
"to": 1794600091348
}
],
"last_seen": 1794600094135
}
// … 296 more steps in the full responseNormal price: the lowest price level the product held for at least 15% of the last 45 days (about a week). Prices within 3% of each other count as one level, and we use the lowest price in that level. How we calculate it → Prices are observations of amazon.com and may be incomplete or delayed. TrackPin is not affiliated with Amazon.