DEWALT 20V MAX 5.0Ah Battery (DCB205) vs Milwaukee M12 REDLITHIUM 2.0Ah Battery (2-Pack) & Charger Kit
Head-to-head spec comparison to help you pick the right battery for your needs.
Deciding between a genuine pack and a cheaper aftermarket one? Read our honest genuine vs aftermarket batteries guide.Read the guide →
Verdict
It's a Tie
The DEWALT 20V MAX 5.0Ah Battery (DCB205) and Milwaukee M12 REDLITHIUM 2.0Ah Battery (2-Pack) & Charger Kit are evenly matched — your choice depends on which features matter most to you.
Spec-by-Spec Comparison
| Spec | DEWALT 20V MAX 5.0Ah Battery (DCB205) | Milwaukee M12 REDLITHIUM 2.0Ah Battery (2-Pack) & Charger Kit |
|---|---|---|
| Platform | 20V MAX | M12 |
| Voltage | 20V MAX | 12V MAX |
| Capacity | 5 Ah | 2 Ah |
| Type | high-output | compact |
| Genuine OEM | Yes | Yes |
| Fuel Gauge | No | No |
| Warranty | 3 years | 5 years |
| Price | $61.31 | $59.89 |
| Rating | 8.6/10 | 8.5/10 |
| Buy on Amazon | Buy on Amazon |
Pros & Cons
DEWALT 20V MAX 5.0Ah Battery (DCB205)
Pros
- Genuine DEWALT 20V MAX pack backed by DEWALT's 3-year warranty
- 5.0Ah capacity suits daily-use 20V MAX tools without frequent swaps
- Drop-in fit across the entire 20V MAX tool lineup
Cons
- No fuel gauge readout on this pack
- Costs more upfront than a compact 2.0Ah pack
- Not compatible with FlexVolt-exclusive 60V tools
Milwaukee M12 REDLITHIUM 2.0Ah Battery (2-Pack) & Charger Kit
Pros
- Genuine Milwaukee M12 packs backed by Milwaukee's 5-year warranty
- Kit includes two batteries plus a charger — a solid starter bundle for the M12 platform
- Compact 2.0Ah cells keep M12 tools light for one-handed work
- Straightforward drop-in fit for any M12 tool
Cons
- 2.0Ah per pack is on the lower end for longer-runtime jobs
- Only compatible with M12 tools, not M18
- No fuel gauge on these compact cells
Our Verdicts
DEWALT 20V MAX 5.0Ah Battery (DCB205)
The DCB205 is DEWALT's genuine mid-capacity 20V MAX pack — a safe, warranty-backed default for anyone building out a 20V MAX kit.
Milwaukee M12 REDLITHIUM 2.0Ah Battery (2-Pack) & Charger Kit
A genuine Milwaukee M12 two-battery-and-charger kit is the straightforward, warranty-backed way to get started or restock on the M12 platform — not the highest capacity, but the safest default.
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