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DeWalt DCB205-5 18.5V 3000mAh 55.5Wh Replacement Battery (5-Cell 21700)
$18.00
DeWalt DCB205-5 18.5V 3000mAh 55.5Wh replacement battery with 5-cell 21700 Li-ion upgrade. 1C max discharge, fast charge, -20°C to 45°C. Drop-in compatible with 20V MAX tools. UN38.3 certified.
DeWalt DCB205-5 18.5V 3000mAh 55.5Wh Replacement Battery — 5-Cell 21700 Upgrade
Premium DeWalt 20V MAX compatible replacement battery engineered for professional contractors and industrial users. This DCB205-5 upgrade features 5 high-capacity 21700 lithium-ion cells in a 5S1P configuration, delivering 18.5V nominal voltage, 3000mAh capacity, and 55.5Wh of stored energy — a meaningful step up from standard 18650-based DCB205 packs. Drop-in compatible with all DeWalt 20V MAX tools that accept the DCB205 / DCB205-2 form factor.
Key Features
- 21700 Cell Upgrade: 5 premium 21700 cells in 5S1P configuration — higher energy density than legacy 18650-based DCB205 packs.
- DeWalt 20V MAX Compatible: Drop-in replacement for DCB205, DCB205-2, and any 20V MAX tool accepting the DCB205 footprint.
- 55.5Wh Capacity: 18.5V × 3.0Ah = 55.5Wh — extended runtime for drills, impact drivers, grinders, saws, and other 20V MAX tools.
- Fast Charging: 0.5C rapid charge (2A) reaches full capacity in ≤ 4 hours; 0.2C standard charge (1A) in ≤ 8 hours.
- 1C Continuous Discharge: 6A max continuous output supports high-demand tools like circular saws and reciprocating saws.
- Wide Operating Range: Discharge from -20°C to 45°C, charge from 0°C to 45°C — built for job site conditions.
- Built-in BMS Protection: Over-charge, over-discharge, over-current, short circuit, and thermal protection via integrated battery management system.
- Premium Build: Impact-resistant housing with LED fuel gauge compatibility and rugged industrial-grade construction.
Detailed Specifications
| Item | Specification |
|---|---|
| Model | DCB205-5 (21700 5S1P Upgrade) |
| Cell Chemistry | Lithium-ion (NMC Ternary, 21700) |
| Cell Configuration | 5S1P (5 cells in series) |
| Compatible Brand | DeWalt 20V MAX |
| Compatible Models | DCB205, DCB205-2, DCB204, DCB206 (form-factor compatible) |
| Nominal Voltage | 18.5V (5 × 3.7V) |
| Nominal Capacity | 3.0Ah (0.2C discharge, 25°C) |
| Minimum Capacity | 2.85Ah |
| Rated Energy | 55.5Wh |
| Charge Method | CC / CV (Constant Current — Constant Voltage) |
| Standard Charge Current | 1A (0.2C) |
| Fast Charge Current | 2A (0.5C) |
| Charge Cutoff Current | 0.02A |
| Charge Voltage Limit | 21V (4.2V per cell × 5) |
| Charge Time (Standard) | ≤ 8 hours (1A) |
| Charge Time (Fast) | ≤ 4 hours (2A) |
| Standard Discharge Current | 3A (0.5C) |
| Max Continuous Discharge | 6A (1C) |
| Discharge Cutoff Voltage | 13.75V (2.75V per cell × 5) |
| Over-Discharge Protection | 2.75V per cell |
| Internal Resistance | 120mΩ @ AC 1KHz |
| Operating Temp (Charge) | 0°C to 45°C |
| Operating Temp (Discharge) | -20°C to 45°C |
| Storage Temp (1 month) | -20°C to 45°C |
| Storage Temp (6 months) | -20°C to 35°C |
| Shipment Voltage | 18 – 19.5V |
| Weight | 500g |
Compatible DeWalt 20V MAX Tools
- Drills & Drivers: DCD771, DCD777, DCD780, DCD785, DCD791, DCD795, DCD996, DCD997
- Impact Drivers: DCF801, DCF809, DCF815, DCF820, DCF825, DCF885, DCF886, DCF887, DCF888, DCF899
- Impact Wrenches: DCF889, DCF890, DCF891, DCF892, DCF894, DCF899
- Grinders: DCG405, DCG406, DCG412, DCG413, DCG414, DCG418
- Saws: DCS367, DCS368, DCS380, DCS381, DCS382, DCS388, DCS389, DCS391, DCS393, DCS394, DCS570, DCS571, DCS575, DCS576, DCS577, DCS578, DCS590, DCS591, DCS620, DCS621, DCS650, DCS651, DCS657
- Rotary Hammers: DCH133, DCH143, DCH172, DCH173, DCH253, DCH273, DCH283, DCH293, DCH333, DCH481
- Other 20V MAX Tools: compatible with all tools accepting DCB205 form factor
Certifications & Support
UN38.3 certified for global shipping. ISO 9001 quality management system. Full MSDS, technical documentation, and bulk pricing available on request. OEM/ODM branding and custom labels supported for distributors and tool retailers.
Looking for a different capacity or form factor? HNF Battery manufactures compatible power tool batteries for DeWalt, Milwaukee, Makita, Bosch, Ryobi, and other major brands. Request a quote or request a free sample today.
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