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DeWalt DCB205BT-2, accessory: 20V MAX XR Premium Lithium-Ion 5.0Ah Battery Pack with Bluetooth Connectivity (2 Pack) (photograph from the Home Depot listing)

DeWalt · 20V MAX

DCB205BT-2

Factory Authorized Outletlisting 18429289824371

20V MAX XR Premium Lithium-Ion 5.0Ah Battery Pack with Bluetooth Connectivity (2 Pack)

accessory

Retailer says · Last observed price

$278.00

Retailer's “was” price No reference-price claim

last observed available online · Factory Authorized Outlet ·

Our record

highest witnessed
$309.00
lowest witnessed
$278.00

We conclude

Recorded verdict · last observed Oct 8 2026 · not confirmed current

Today’s price is 10% below the 37-day reference.

Coverage · developing record · watched since Sep 2 2026 · point-by-point since Sep 2 2026 · 34 price-days · 3 coverage gaps · 0 continuity breaks

View at Factory Authorized Outlet · $278.00 All offers Price record
Watch this exact offer

Alerts fire on our verdict, never on retailer banners. At most six price-alert emails in any rolling seven days.

WTV-DEWALT-DCB205BT-2-FAO-20261010-0805

This exact Audit record

Wasitever · Claim Audit

DCB205BT-2

20V MAX XR Premium Lithium-Ion 5.0Ah Battery Pack with Bluetooth Connectivity (2 Pack)

DeWalt · 20V MAX · accessory · Factory Authorized Outlet · online national

Retailer says
$278.00 — Factory Authorized Outlet
Our record
highest witnessed $309.00 Sep 2 2026lowest witnessed $278.00 Oct 6 2026
We conclude
Recorded verdict · last observed Oct 8 2026 · not confirmed current

Today’s price is 10% below the 37-day reference.

Coverage · developing record · watched since Sep 2 2026· point-by-point since Sep 2 2026· 34 price-days · 3 coverage gaps · 0 continuity breaks· batch complete

Complete witnessed history

Price record

This is the independent record for the Factory Authorized Outlet listing above. It does not borrow prices, claims, or observations from another retailer.

Evidence instrument · 90-day reference rule · 37-day observed span

Offered price vs. their claimed ‘was’

Factory Authorized Outlet · Sep 02 2026–Oct 08 2026

Offered price vs. their claimed ‘was’ TRUE −10% VS 37D. The offered price is $278 as of Oct 8 2026; the retailer supplied no claimed reference. The plotted record breaks across 3 missing observation runs. The vertical price scale visibly starts at $265. The 90-day rule selects its reference. This record contributes a 37-day observed span; all 34 price-days and 3 missing runs are shown. Daily tracking had not yet begun in the earlier part of the rule frame; that time is not a coverage gap. $280$300$320FULL POINT-BY-POINT RECORD34 PRICE-DAYS · 37D OBSERVED SPAN$278 · OFFERED · Oct 8Sep 2Sep 20Oct 8 BROKEN SCALE · STARTS AT $265
Offered price vs. their claimed ‘was’ TRUE −10% VS 37D. The offered price is $278 as of Oct 8 2026; the retailer supplied no claimed reference. The plotted record breaks across 3 missing observation runs. The vertical price scale visibly starts at $265. The 90-day rule selects its reference. This record contributes a 37-day observed span; all 34 price-days and 3 missing runs are shown. Daily tracking had not yet begun in the earlier part of the rule frame; that time is not a coverage gap. $280$300$320FULL POINT-BY-POINT RECORD · 34 PRICE-DAYS · 37D OBSERVED SPAN$278 · OFFERED · Oct 8Sep 2Sep 20Oct 8 BROKEN SCALE · STARTS AT $265
Offered price vs. their claimed ‘was’ TRUE −10% VS 37D. The offered price is $278 as of Oct 8 2026; the retailer supplied no claimed reference. The plotted record breaks across 3 missing observation runs. The vertical price scale visibly starts at $265. The 90-day rule selects its reference. This record contributes a 37-day observed span; all 34 price-days and 3 missing runs are shown. Daily tracking had not yet begun in the earlier part of the rule frame; that time is not a coverage gap. $280$300$320FULL POINT-BY-POINT RECORD · 34 PRICE-DAYS · 37D OBSERVED SPAN$278 · OFFERED · Oct 8Sep 2Sep 20Oct 8 BROKEN SCALE · STARTS AT $265

No observations · Sep 21 2026; Sep 25 2026; Oct 5 2026

  • offered, witnessed
  • their claimed “was”
  • no observations
  • detached price fact
Chart notes and detached evidence

Why this form

The 90-day rule selects its reference. This record contributes a 37-day observed span; all 34 price-days and 3 missing runs are shown. Daily tracking had not yet begun in the earlier part of the rule frame; that time is not a coverage gap.

Every line uses reduced price-days for one exact retailer offer. Both series share the coverage mask; intraday and Class B facts remain detached marks. The receipt ledger below is the complete text alternative.
Price distribution · 34 price-days

Price-day distribution · M2

Where the last observation sits

Factory Authorized Outlet · 34 price-days

Price-day distribution for this exact offer Among the lowest 10% of prices we’ve witnessed for this exact offer. 0% of 34 price-days were lower than the last observed $278.

Last observed · $278

$278$309

Among the lowest 10% of prices we’ve witnessed for this exact offer.

0% of 34 price-days were lower · 3 matched the last observed $278

  • $278 · 3d
  • $309 · 31d
Price history, changes, and missing observations — 8 entries

Point ledger · stable row IDs

Price history, changes, and missing observations

8 entries · change points, gaps, and dated facts

Complete dated text alternative to the price chart. A gap records missing knowledge; it never records an offer change.
DateRecord eventOfferedClaimed “was”Receipt note
Point-by-point record begins $309.00 — no observation
Receipt · receipt-20260902-record-start

Class C · complete observation.

Source · WTV-COLLECT-00075

Class C · complete observation.

Source · WTV-COLLECT-00075
No observations · 1 day — no observation — no observation
Receipt · receipt-20260921-gap

No observations in the published record.

Source · WTV-GAP-dewalt-dcb205bt-2-FAO-20260921-20260921

No observations in the published record.

Source · WTV-GAP-dewalt-dcb205bt-2-FAO-20260921-20260921
Complete observations resume $309.00 — no observation
Receipt · receipt-20260922-record-resumes

Class C · complete observation.

Source · WTV-COLLECT-00392

Class C · complete observation.

Source · WTV-COLLECT-00392
No observations · 1 day — no observation — no observation
Receipt · receipt-20260925-gap

No observations in the published record.

Source · WTV-GAP-dewalt-dcb205bt-2-FAO-20260925-20260925

No observations in the published record.

Source · WTV-GAP-dewalt-dcb205bt-2-FAO-20260925-20260925
Complete observations resume $309.00 — no observation
Receipt · receipt-20260926-record-resumes

Class C · complete observation.

Source · WTV-COLLECT-00465

Class C · complete observation.

Source · WTV-COLLECT-00465
No observations · 1 day — no observation — no observation
Receipt · receipt-20261005-gap

No observations in the published record.

Source · WTV-GAP-dewalt-dcb205bt-2-FAO-20261005-20261005

No observations in the published record.

Source · WTV-GAP-dewalt-dcb205bt-2-FAO-20261005-20261005
Complete observations resume $278.00 — no observation
Receipt · receipt-20261006-record-resumes

Class C · complete observation.

Source · WTV-COLLECT-00662

Class C · complete observation.

Source · WTV-COLLECT-00662
Latest complete observation $278.00 — no observation
Receipt · receipt-20261008-current

Class C · complete observation.

Source · WTV-COLLECT-00694

Class C · complete observation.

Source · WTV-COLLECT-00694
Coverage and record credentials

Record credentials

What this page knows

Exact scope
DeWalt · DCB205BT-2 · accessory · Factory Authorized Outlet · online national · config cfg-dewalt-dcb205bt-2
Watched since
Sep 2 2026
Point-by-point since
Sep 2 2026
Observation record
34 price-days · collection walk; cadence not yet set
Latest covering batch
complete · 445/445 items · WTV-COLLECT-00694
Observation classes travel with the price record. They are never silently blended.
ClassRetained evidenceRendering law
Class A0 price-daysretained complete observations
Class B0 dated markdurable summary fact; never a curve
Class C34 price-daysnew longitudinal record

Coverage gaps · 3 coverage gaps · 0 continuity breaks

  • Sep 21 2026 · 1dNo observations in the published record.
  • Sep 25 2026 · 1dNo observations in the published record.
  • Oct 5 2026 · 1dNo observations in the published record.