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DTK Replacement for SKIL 40V Battery 5Ah 40V Lithium Batteries

Rated4.5(29 ratings)In stock

Good price

$80.29 is 9% below the $89.21 it normally sells for, and the lowest we've seen in 109 days.

Now
$80.29
Normally
$89.21
Lowest in 109 days
$80.29(Nov 12)
Highest
$111.00
Evidence: Strong109 days tracked12 price changes

Where today's price sits

View on amazon.com (opens in a new tab)

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.

Get an email when the price drops

Good: 5%+ below normal. Great: 20%+ below. One email when it happens, at a price below today's $80.29. No account, no newsletter.

Amazon price jumps and real deals, posted on X: @trackpindeals (opens in a new tab)

The listing's crossed-out price

Holds up

The listing shows

crossed out: Typical $89.21 −10%

Against its normal price

−9% vs $89.21

Typical $89.21 (−10%) holds up: today's price is 9% 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 Jul 26 · 109 days · 12 price changes

Ahead of Black Friday 2026 (Nov 27), it is already 9% below its normal price of $89.21. DTK Replacement for SKIL 40V Battery 5Ah 40V Lithium Batteries price history, checked Nov 12, 2026: current price $80.29, normal (typical) price $89.21, average $98.97 over 109 days, lowest $80.29 (Nov 12, 2026), highest $111.00 (Nov 12, 2026).

Loading the price chart.

  • Price
  • Not checked for 3+ days
  • Normal $89.21
  • 5% or more below normal

How often does it drop below normal?

In the 109 days we've tracked it, it stayed 5% or more below today's normal price for an hour or more twice, typically lasting about 1 day. It's below normal right now.

A count of what happened, not a prediction.

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Get this as JSONThe same verdict and prices, from the TrackPin API.
GET/api/v1/product/B0DJ8P39BS
Request
curl https://trackpin.co/api/v1/product/B0DJ8P39BS \
  -H "x-api-key: $TRACKPIN_API_KEY"

This is exactly what the API returns for this product. Free keys include 100 requests a day.

Request a key
Live response, As of 23:54 UTC
{
  "asin": "B0DJ8P39BS",
  "title": "DTK Replacement for SKIL 40V Battery 5Ah 40V Lithium Batteries",
  "image": "https://m.media-amazon.com/images/I/71Rz3Pwfs4L._AC_SL500_.jpg",
  "currency": "USD",
  "category": "CE",
  "category_label": "Electronics",
  "in_stock": true,
  "price": {
    "current_cents": 8029,
    "reference_cents": 8921,
    "discount_pct": 10,
    "is_deal": true,
    "observed_at": 1794509077288,
    "changed_at": 1794470866174,
    "checked_at": 1794509077288,
    "source": "stored"
  },
  "verdict": {
    "label": "good",
    "text": "Good price",
    "pct_vs_normal": 10,
    "evidence": "strong",
    "stale": false,
    "suspect": false,
    "steady_since": null,
    "sentence": "Good price. $80.29 is 9% below the $89.21 it normally sells for, and the lowest we've seen in 109 days."
  },
  "listing_claim": {
    "label": "Typical:",
    "listing_reference_cents": 8921,
    "claimed_pct": 10,
    "real_pct": 10,
    "class": "holds_up",
    "observed_at": 1794472224405
  },
  "stats": {
    "min_cents": 8029,
    "max_cents": 11100,
    "avg_cents": 9897,
    "history_days": 109,
    "price_levels": 42,
    "price_changes": 12,
    "distinct_prices": 5,
    "lowest_at": 1794470866174
  },
  "history": [
    {
      "price_cents": 8921,
      "from": 1792058254234,
      "to": 1793254235881
    },
    {
      "price_cents": 11100,
      "from": 1793255050400,
      "to": 1793256437442
    },
    {
      "price_cents": 8921,
      "from": 1793257286977,
      "to": 1794442757340
    },
    {
      "price_cents": 11100,
      "from": 1794452471869,
      "to": 1794456012386
    },
    {
      "price_cents": 8029,
      "from": 1794470866174,
      "to": 1794509077288
    }
  ],
  "last_seen": 1794509077288
}
// … 37 more steps in the full response

Normal 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.