Original DeWalt DCB205 Battery (OEM Option)
Genuine DeWalt 5.0Ah 20V MAX XR lithium-ion battery for extended runtime.
Buy Original DeWalt DCB205 Battery
Compatible Replacement Batteries for DeWalt DCB205
| Battery | Capacity | 20V MAX | Compatible | Buy Link |
|---|---|---|---|---|
| DeWalt DCB205 (OEM) | 5.0Ah | Yes | Yes | Buy on Amazon |
| Waitley 20V 5.0Ah (Compatible) | 5.0Ah | Yes | Yes | Buy on Amazon |
| Energup 20V 5.0Ah (Budget) | 5.0Ah | Yes | Yes | Buy on Amazon |
Genuine batteries, chargers and kits for this platform
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Before you buy: check that the size, fitting/bore and maximum-rated speed marked on the accessory match what your tool’s manual specifies. We have not physically tested these products; listings are compiled from published specifications. These are affiliate links.
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Which batteries fit which tools — cross-brand, adapters & Ah, decoded.
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Related Guides
- Every DeWalt 20V MAX Battery Compared
- Every DeWalt 20V MAX Tool and Which Batteries Fit
- DeWalt 20V MAX Charger Compatibility Guide
- DeWalt POWERSTACK vs Standard Battery
- How Long Do Power Tool Batteries Last?
Frequently Asked Questions
What is the difference between DCB205 and DCB205BT?
The DCB205BT is DEWALT’s Bluetooth-enabled (BT) version of the DCB205. We have not verified its app features, so check DEWALT’s product page.
Can I use a DCB206 instead of a DCB205?
Yes, in the same 20V MAX tools. The DCB206 (6.0Ah) holds 20% more charge than the DCB205 (5.0Ah). DEWALT’s US pages list 1.54 lb for the DCB205 and 2.25 lb for the DCB206, so it is noticeably heavier.
How does the DCB205 compare to FLEXVOLT batteries?
The DCB205 is a 20V-only battery, while FLEXVOLT batteries (like the DCB606) can switch between 20V and 60V. In standard 20V MAX tools, both run as 20V MAX batteries (18V nominal; 20V is the maximum initial voltage). FLEXVOLT batteries are only necessary if you own 60V MAX tools like the table saw or miter saw.
What charger do I need for the DCB205?
DEWALT’s charge-time table (DCB118 manual) gives these times for the DCB205: DCB107 240 min, DCB112 150 min, DCB102 95 min, DCB115 75 min and DCB118 75 min (47 min for packs with date code 201536 or later). Use a DEWALT 20V MAX charger that lists the pack.
Video Guide
Key Specifications
| Specification | Details |
|---|---|
| Nominal Voltage | 18V (20V MAX) |
| Capacity | 5.0 Ah |
| Watt-Hours | 100 Wh (DEWALT US figure at 20V max; 90 Wh at 18V nominal) |
| Chemistry | Lithium-Ion |
| Weight | 0.70 kg (1.54 lb, DEWALT US) |
| Battery Indicator LED | Yes |
| Compatible Platform | DeWalt 20V MAX Series |
Signs Your DCB205 Battery Needs Replacing
Lithium-ion batteries degrade naturally over time. Here are the key signs that your DeWalt DCB205 battery needs replacing:
- Rapid discharge: The battery drains noticeably faster than when it was new, even after a full charge. If a battery that once lasted an hour now dies in 20 minutes, capacity has degraded significantly.
- Charges but dies quickly under load: The battery appears to charge fully but shuts off within minutes when powering demanding tools. This indicates internal cell failure where the battery can no longer deliver sufficient current.
- Excessive heat during use or charging: While some warmth is normal, a battery that becomes uncomfortably hot during operation or on the charger has damaged cells. Excessive heat is both a symptom and a cause of further degradation.
- Physical swelling or damage: Any visible bulging, cracking, or deformation of the battery casing means the cells inside have failed. Stop using a swollen battery immediately and dispose of it safely at a recycling point.
- Charger error indicators: If your DeWalt charger flashes error lights or refuses to charge the battery entirely, it has detected a fault. Most modern chargers include diagnostic features that identify damaged batteries.
- Age: lithium-ion packs lose capacity with age and use. If an older pack’s runtime has clearly dropped, replacement is worthwhile.
OEM vs Third-Party Replacement Batteries
When replacing your DeWalt DCB205, you have two main options: genuine DeWalt batteries or third-party compatible alternatives. Both will physically fit and power your tools, but there are meaningful differences worth considering.
| Factor | Genuine DeWalt | Third-Party Compatible |
|---|---|---|
| Typical Price | £50-90 | £25-50 |
| Cell Quality | DEWALT genuine pack | Varies by manufacturer |
| Warranty | DEWALT UK: 1 year; batteries are excluded from the 3-year registration extension (POWERSTACK excepted) | Varies by seller |
| Safety Certifications | Built and certified to DeWalt’s own standards, with UKCA/CE marking | Varies by seller. Markings such as UKCA or CE are the manufacturer’s own declaration, not independent proof of testing — check who the responsible manufacturer or importer is before buying |
| Expected Lifespan | Not published by DEWALT | Not published |
| Performance Consistency | Made for DEWALT 20V MAX tools | Compatible, slight variation possible |
Choose genuine DEWALT batteries if you use your tools professionally and depend on them for income: you get a pack DEWALT makes and supports, with a known warranty route.
Third-party batteries can suit homeowners and occasional users who want a lower cost; quality varies, so check the seller and warranty. You can often buy two third-party packs for the price of one genuine unit.
How to Get the Most from Your Replacement Battery
Follow these care tips to maximise the lifespan and performance of your new DeWalt DCB205 replacement battery:
- Charge fully before first use: DEWALT’s manuals say to charge lithium-ion packs fully before first use.
- Storage: DEWALT’s manuals recommend a cool, dry place at room temperature, out of the charger; for long storage, store the pack fully charged and never completely depleted.
- Avoid temperature extremes: DEWALT says not to store or use packs where the temperature may fall below 4 °C or reach 40 °C or more. Never leave batteries in a hot vehicle or in direct sunlight.
- Leaving it on the charger: DEWALT’s manuals say a fully charged pack may be used straight away or left in the charger.
- Use a DEWALT charger listed for the pack: DEWALT’s 20V MAX charger list includes the DCB112, DCB115 and DCB118; check the charger manual’s battery list.
How we compile this guide
We cross-reference compatibility details against manufacturer specifications where available, official tool manuals, and the physical standards that govern fitment (bore sizes, arbor diameters, voltage platforms, connector types). We prioritise primary sources over retailer listings, flag anything we can’t confirm, and re-verify the data on a regular cycle. Where we give a buying recommendation, we tell you the reasoning — not just the link. More on our method →
