9.0Ah Replacement Battery for DEWALT 20V/60V FlexVolt (2-Pack) vs Milwaukee 48-59-1808 M12 and M18 12V/18V Lithium-Ion Multi-Voltage Rapid Battery Charger
Head-to-head spec comparison to help you pick the right battery for your needs.
Spec Winner
Milwaukee 48-59-1808 M12 and M18 12V/18V Lithium-Ion Multi-Voltage Rapid Battery Charger
Wins on 4 of 5 spec categories
Spec-by-Spec Comparison
| Spec | 9.0Ah Replacement Battery for DEWALT 20V/60V FlexVolt (2-Pack) | Milwaukee 48-59-1808 M12 and M18 12V/18V Lithium-Ion Multi-Voltage Rapid Battery Charger |
|---|---|---|
| Platform | FlexVolt | M18 |
| Voltage | 20V/60V MAX | 18V |
| Capacity | 9 Ah | 0 Ah |
| Type | high-output | charger |
| Genuine OEM | No | Yes |
| Fuel Gauge | No | No |
| Warranty | 0 years | 5 years |
| Price | $68.39 | $54.89 |
| Rating | 6.5/10 | 8.6/10 |
| Buy on Amazon | Buy on Amazon |
Pros & Cons
9.0Ah Replacement Battery for DEWALT 20V/60V FlexVolt (2-Pack)
Pros
- Two 9.0Ah packs for less than the price of one genuine DEWALT DCB609
- Seller lists compatibility across a wide range of DEWALT 20V/60V FlexVolt model numbers
- High per-pack capacity on paper for demanding FlexVolt tools
Cons
- Third-party replacement pack, NOT covered by DEWALT's tool warranty — any tool or battery issue is handled by the third-party seller, not DEWALT
- Buyer must independently verify voltage and platform fit against their specific DEWALT tool before use
- A working buying link is not proof of safety, cell quality, or real-world performance — we have not tested this pack
- No manufacturer-backed warranty; unbranded listing with no verifiable warranty terms
Milwaukee 48-59-1808 M12 and M18 12V/18V Lithium-Ion Multi-Voltage Rapid Battery Charger
Pros
- Charges both M12 and M18 REDLITHIUM packs from one charger, useful if you own tools on both platforms
- Genuine Milwaukee OEM part, not a third-party clone
- Priced under $60, cheaper than buying a dedicated charger for each platform
- Compact footprint for a toolbox or job box
Cons
- Listed as non-retail/bulk packaging — no retail box or included manual
- Manufacturer listing doesn't state charge time or amperage, so we can't quote a speed
- Amazon listing shows check-availability status rather than guaranteed in-stock
Our Verdicts
9.0Ah Replacement Battery for DEWALT 20V/60V FlexVolt (2-Pack)
A genuine DEWALT FlexVolt pack like the DCB609 remains the safe default; this unbranded 9.0Ah 2-pack is a cheaper aftermarket option but comes with no DEWALT warranty, so verify fit and buyer protections before relying on it.
Milwaukee 48-59-1808 M12 and M18 12V/18V Lithium-Ion Multi-Voltage Rapid Battery Charger
If you run both M12 and M18 tools, one charger that handles both packs is a real convenience — this is a genuine Milwaukee part at a fair price, though stock availability varies.
Milwaukee 48-59-1808 M12 and M18 12V/18V Lithium-Ion Multi-Voltage Rapid Battery Charger
$54.89