Batteries and chargers / Compared

DEWALT DCB205vsDCBP034

Two batteries, compared from their makers' published US specs. Specs checked 2026-10-17.

Comparing the DEWALT DCB205 (BATTERY) and DEWALT DCBP034 (BATTERY) on the DEWALT 20V MAX platform: across 8 specs published for both models, 2 differ and 6 match, while 2 specs are published by only one maker and not assumed for the other. Key distinction: DEWALT DCB205: more capacity per battery (5.0 Ah vs 1.7 Ah). All figures are from published US manufacturer specs and operator manuals, not hands-on testing.

DEWALT DCB205

BATTERYDEWALT 20V MAX

Voltage 20 VBattery capacity 5.0 AhEnergy 100 Wh

Find DCB205 prices on Amazon Find DCB205 prices at eBay Opens the retailer in a new tab; the current price is shown there. Marketplace sellers vary: check the seller and exact model.

DEWALT DCBP034

BATTERYDEWALT 20V MAX

Voltage 20 VBattery capacity 1.7 AhWorks with compatible with 20V MAX tools

Find DCBP034 prices on Amazon Find DCBP034 prices at eBay Opens the retailer in a new tab; the current price is shown there. Marketplace sellers vary: check the seller and exact model.

How to choose between them

From the published figures only; no testing. Rated figures from different makers are not measured the same way.

Where they differ

2 verified spec differences across 8 specs published for both models (2 specs are listed by only one maker). Stated from the published figures only; no testing.

What they share

Published by only one maker (data gaps)

A missing value means we have no published figure under that heading for the other model (its maker may not publish it, or may state it differently); we never guess or count an unstated spec as a verified difference.

Every published spec, side by side

SpecDEWALT DCB205DEWALT DCBP034
Voltage20 V20 V
Battery capacity (each)DiffersDCB205: +3.3 Ah (+194.1%)5.0 Ah1.7 Ah
EnergyOnly one listed100 WhNot on maker page
Works with (maker's statement)Differs20 V MAX Toolscompatible with 20V MAX tools
Charge indicatorLED state-of-charge indicatorLED state-of-charge indicator
Battery lineOnly one listedNot on maker pagePOWERSTACK (product name); pouch cell technology
Warranty3 Year Limited Warranty, 1 Year Free Service, 90 Days Satisfaction Guaranteed3 Year Limited Warranty, 1 Year Free Service, 90 Days Satisfaction Guaranteed
Batteries in box11
Charger in boxNoNo
Nominal voltage18 V (max initial 20V without workload)18 V (max initial 20V without workload)

"Differs" marks different published values; pure formatting is not counted. "Only one listed" marks a spec only one maker page gives. Box contents, owner ratings, manuals and sources are on each model's own page: DCB205, DCBP034. Swap either model in the compare tool.

DEWALT DCB205

BATTERYDEWALT 20V MAX

Voltage 20 VBattery capacity 5.0 AhEnergy 100 Wh

Find DCB205 prices on Amazon Find DCB205 prices at eBay Opens the retailer in a new tab; the current price is shown there. Marketplace sellers vary: check the seller and exact model.

DEWALT DCBP034

BATTERYDEWALT 20V MAX

Voltage 20 VBattery capacity 1.7 AhWorks with compatible with 20V MAX tools

Find DCBP034 prices on Amazon Find DCBP034 prices at eBay Opens the retailer in a new tab; the current price is shown there. Marketplace sellers vary: check the seller and exact model.

Sources

  1. DEWALT US product page DCB205 (features), retrieved 2026-10-17
  2. DEWALT US product page DCBP034 (features), retrieved 2026-10-17

Spotted a wrong number? Report a spec error (opens an email with both models filled in). We re-check against the makers' pages and correct the page.

Researched by Rob, licensed electrician (Australia), 18 years on the tools. Found an error? Tell us.

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