CRAFTSMAN V20 Lithium Ion Battery, 4.0-Amp Hour (CMCB204)
We are not ready to call this price.
We check at least every 12 hours and hold a day-by-day record of what this cost — 3 days of it so far. Calling a price high or low needs 7 of those days and at least one change, because a range needs two prices: this one has not moved since we started watching. If it is still $84.99 on October 18, this box will say so — a price that has held for 10 days is an answer too.
One 4.0 Ah battery: $21.25 per amp-hour at today’s $84.99. Every platform, per amp-hour
Tell me when it drops
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Price history
Tracking since October 8, 2026 · 3 of 7 days to a verdict
The price has not changed since we started watching, so there is no line to draw yet. A chart appears the first time it moves.
Sales events
Next on the calendar: Black Friday, November 27. We keep checking this price through it and report here what it did.
Where to buy
- Held for
- 2d
- Checked
- 2h ago
Prices checked at least every 12 hours. “Held for” is how long that retailer has been charging this price. A hidden price is one we cannot re-confirm recently enough to publish.
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What it is
6 attributes, in the retailer’s own words. We record the prices; these we only pass on.
- Size
- 4 amps
- Weight
- 0.9 pounds
- Dimensions
- 6.5 × 5.5 × 2.69 inches
- Model
- CMCB204
- Released
- January 2019
- Warranty
- Visit Craftsman.com
Cheaper in Tool batteries, and what changes
Things we track on the same shelf for at least 10% less than $84.99, with the attributes the retailers describe differently. Their words, not our judgement — we record prices, we do not test products.
DEWALT20V MAX Battery, Lithium Ion, 5.0Ah (DCB205)$64.87 at Amazon $20.12 lessSize: 1 Count instead of 4 ampsWeight: 1.4 pounds instead of 0.9 pounds
DEWALT20V MAX Lithium Ion Battery (DCB204)$58.49 at Amazon $26.50 lessSize: 7.15in. x 7.10in. x 3.00in. instead of 4 ampsWeight: 1.4 pounds instead of 0.9 pounds
DEWALT20V MAX Battery, Compact 2.0Ah Double Pack (DCB203-2)$72.00 at Amazon $12.99 lessSize: 2.0 Ah Double Pack instead of 4 ampsWeight: 1 pound instead of 0.9 pounds
Others we track in Tool batteries
See all Tool batteries prices
CRAFTSMANV20 Lithium Ion Battery, 2.0-Amp Hour, 2 Pack (CMCB202-2)$83.01 · low $82.001 retailer · 2 recorded prices
CRAFTSMANV20 Battery and Charger, for Power Tool Kits and Outdoor Tools, 4.0 Ah, Lithium Ion Battery (CMCB204-CK)$82.611 retailer · 2 recorded prices
RYOBIP193 6.0 Amp Hour 18V Lithium Ion Battery w/ Onboard Fuel Gauge$88.201 retailer · 1 recorded price
Milwaukee48-11-1865 M18 REDLITHIUM HIGH Output XC 6 Ah Lithium-Ion Battery$88.441 retailer · 2 recorded prices
MakitaBl1850 632B77-5 Lithium-Ionen Battery 18V 5 Ah$89.001 retailer · 4 recorded prices
MakitaBL1820B-2 18V Compact Lithium-Ion 2.0Ah Battery Twin Pack$96.001 retailer · 1 recorded price
$84.99
at Amazon · we earn a commission