Choosing among the best DeWalt batteries available in Canada means answering two questions: which platform (20V MAX or FlexVolt), and then what capacity. The rest is detail, but detail that costs dearly when you get it wrong.
According to DeWalt, a 9 Ah FlexVolt battery provides up to six times the runtime of a 1.5 Ah battery on a 20V MAX tool. The gap is massive, and it explains why the same drill can seem weak or tireless depending on the battery you give it.
Here are the errors we see recurring at the counter:
- buying a FlexVolt when you will never own a 60V tool
- choosing the largest capacity for a tool you hold at arm's length all day
- comparing the battery price without looking at the price per amp-hour
We have selected eight DeWalt batteries, all in stock at Équipement Polar at the time of writing (September 25, 2026). For each one: capacity, price, strengths, limitations, and the ideal profile. If you are first hesitating between 20V MAX and FlexVolt, our guide How to choose your DeWalt battery: 20V MAX vs FlexVolt explains the fundamental difference.
Our quick picks among the best DeWalt batteries
- Best overall choice → DCB606 FlexVolt 6 Ah: $199
- Best value for money → 2-pack of DCB606: $298 ($149 each)
- Best FlexVolt runtime → DCB612 FlexVolt 12 Ah: $328
- Best 20V MAX runtime → DCB210 XR 10 Ah: $259
- FlexVolt 9 Ah → DCB609: $339
- Best 8 Ah 20V MAX (tabless cells) → DCB2108 POWERPACK: $219
- Best compact battery → DCBP318 POWERSTACK 3.5 Ah: $179
- Best starter kit → DCB112 3 Ah battery and charger: $97
Comparison table of DeWalt batteries in stock
| Model | Platform | Capacity | Price CAD | Price per Ah (20V) | Main use |
|---|---|---|---|---|---|
| DCB606 | FlexVolt | 6 Ah (20V) / 2 Ah (60V) | $199 | $33 | Mixed 20V and 60V fleet |
| 2-pack DCB606 | FlexVolt | 2 x 6 Ah | $298 | $25 | Battery rotation |
| DCB612 | FlexVolt | 12 Ah (20V) / 4 Ah (60V) | $328 | $27 | 60V tools at full throttle |
| DCB210 | 20V MAX XR | 10 Ah | $259 | $26 | Long day on 20V tools |
| DCB609 | FlexVolt | 9 Ah (20V) / 3 Ah (60V) | $339 | $38 | 60V kits, heavy use |
| DCB2108 | 20V MAX XR POWERPACK | 8 Ah | $219 | $27 | Demanding 20V tools, cold |
| DCBP318 | 20V MAX POWERSTACK | 3.5 Ah | $179 | $51 | Compact and light tools |
| DCB112 (with charger) | 20V MAX | 3 Ah | $97 | Charger included | First battery, backup battery |
Prices in Canadian dollars noted on September 25, 2026. The price per amp-hour divides the price by the capacity in 20V mode: the lower it is, the better value you are getting for the runtime. Check the current price on each product page. Free delivery from $150 anywhere in Canada from the DeWalt 20V Battery collection.
How we ranked these DeWalt batteries
The ranking does not seek the most expensive or the largest battery. It seeks the one that best suits each type of buyer. Five criteria weighed in the balance:
- Compatibility: on how many tools does the battery work (20V MAX only, or also 60V and 120V MAX)?
- Useful capacity: the amp-hours in the mode you will actually use, not just the most flattering number.
- Price per amp-hour: calculated from the price displayed at Polar on September 25, 2026.
- Ease of use: format, weight, required charger.
- Availability: we only kept models in stock at the time of writing. An unavailable battery is of no use to anyone, even if it is excellent on paper.
Technical data comes from Polar product pages and the manufacturer's pages. When a value differs from one source to another, we left it aside rather than choosing the most flattering one. The recommendations are our judgment as advisors, not laboratory measurements.
1. DeWalt DCB606: 20V/60V FlexVolt 6 Ah battery
Best overall choice. The gateway to the FlexVolt platform, and the battery I recommend first to the majority of buyers.
The DCB606 behaves like a 6 Ah battery on your 20V MAX tools, then switches automatically to 60V as soon as you place it on a FlexVolt miter saw, grinder, or circular saw. One single model thus handles both worlds, without adjustment or adapter. This is what makes it the right first purchase when you don't yet know if a 60V tool will ever enter the toolbox.
With 108 Wh according to the product sheet, it sits above a standard 5 Ah 20V MAX for a comparable retail price. It is also significantly more compact than the 9 Ah and 12 Ah FlexVolt batteries, which counts for a tool held for a long time. Its limit is seen in 60V mode: only 2 Ah. On a power-hungry 60V tool, the entries 3 and 5 of this ranking last longer.
Pros
- The lowest entry price for the FlexVolt platform: $199
- Works on all your 20V MAX tools and 60V tools
- Lighter and more compact than the 9 Ah and 12 Ah models
- Also available in a two-pack (entry 2)
Points to consider
- Only 2 Ah at 60V: limited runtime on a 60V circular saw or blower used at full capacity
- At $33 per amp-hour at 20V, it costs more per Ah than the DCB210 ($26) or the two-pack ($25)
Ideal for: a 20V MAX tool fleet that will one day open up to 60V, or a first FlexVolt purchase.
Not ideal for: intensive 60V use all day long (see the DCB612) or a 100% 20V fleet with no 60V plans (see the DCB210).
Price: $199
View the DCB606 at Polar →2. 2-pack of DeWalt 60V 6 Ah batteries (2 x DCB606)
Best value for money. Two DCB606s for $298, or $149 each instead of $199.
Two DCB606s sold together at $298 is $100 less than two batteries purchased separately ($398). The price per amp-hour drops to $25 in 20V mode, the lowest in this entire ranking. For the same budget, you get more total runtime than any single battery, except for the DCB612 which costs $30 more for just one battery.
The practical benefit is rotation: one battery on the tool, the other on the charger. On a job site or in a workshop, this avoids forced stops to recharge without buying the largest capacity (and the weight that goes with it). It is also a good way to equip two tools at once. Like the DCB606, the set remains limited to 2 Ah at 60V for each battery.
Pros
- $149 per battery, compared to $199 individually
- The best price per amp-hour of the selection ($25)
- A spare battery always ready, without weighing down the tool
- 24 sets in stock, the highest availability in the ranking
Points to consider
- $298 at once: a heavier investment than a single battery
- Both batteries are 6 Ah: for a single 60V tool that draws a lot, a DCB612 is more efficient
Ideal for: someone working several hours with the same tool and wanting to alternate batteries.
Not ideal for: a first purchase on a tight budget (see the DCB112 kit) or very intensive 60V use (see the DCB612).
Price: $298
View the 2-pack DCB606 at Polar →3. DeWalt DCB612: 60V FlexVolt 12 Ah battery
Best FlexVolt runtime. And, at $328, cheaper than the 9 Ah.
The DCB612 is the most energetic battery that Polar has in stock: 240 Wh, i.e., 12 Ah on a 20V MAX tool and 4 Ah on a 60V tool. In 60V mode, it lasts twice as long as the DCB606. According to DeWalt, it offers up to six times the runtime of a 1.5 Ah on 20V MAX tools, and it also powers 120V MAX tools that use two FlexVolt batteries.
A detail that few people notice: at the price displayed today at Polar, it costs $11 less than the DCB609 ($339), while offering 3 Ah more at 20V and 1 Ah more at 60V. As the product sheet describes it in the same format as the 9 Ah, there is no loss of compactness. A fast charger like the DCB118 ($99) is highly recommended so as not to wait too long for its recharge.
Pros
- The longest FlexVolt runtime in stock: 12 Ah at 20V, 4 Ah at 60V
- $27 per amp-hour, better than the DCB609 ($38) and the DCB606 ($33)
- Compatible with 120V MAX tools (two batteries)
- Works down to 0°F (approx. -18°C) according to DeWalt
Points to consider
- Heavier and larger than a DCB606: you feel it on a tool held overhead
- $328 for a single battery, and only 9 units in stock
- A fast charger is almost mandatory so as not to wait long
Ideal for: a 60V tool used several times a week (circular saw, grinder, rotary hammer) or a long day on a remote job site.
Not ideal for: a light tool held above the shoulders all day (see the DCB606).
Price: $328
View the DCB612 at Polar →4. DeWalt DCB210: 20V MAX XR 10 Ah battery
Best 20V MAX runtime. The largest battery of the standard platform, without paying for the 60V.
The DCB210 offers 10 Ah for 20V MAX tools, the highest capacity in the standard XR range, with 200 Wh of energy. Since it does not contain FlexVolt technology, it costs less than a FlexVolt of comparable capacity: $26 per amp-hour compared to $27 for the DCB612, with a base price of $259 instead of $328.
DeWalt markets it as compatible with Power Detect XR tools, which adjust their output based on the battery used. It is suitable for tools that see long runtimes without requiring 60V: hammer drills, reciprocating saws, impact wrenches, and work lights. Its weight of approximately 1.1 kg is the price you pay for the runtime; it is best reserved for tools that are frequently set down.
Pros
- 10 Ah on the entire 20V MAX platform, the longest 20V runtime in stock
- $26 per amp-hour, among the lowest in our selection
- Cheaper than the DCB612 for a 100% 20V fleet
- 12 units in stock
Things to consider
- Does not work on 60V tools: a future FlexVolt purchase will require other batteries
- Heavy and bulky: I reserve it for tools that are frequently set down, not those held overhead
Ideal for: a 100% 20V MAX fleet and long work days without access to an outlet.
Not ideal for: someone planning to buy 60V tools (see the DCB606 or DCB612).
Price: $259
View the DCB210 at Polar →Need help choosing your DeWalt battery?
Our advisors in Quebec City and Chicoutimi know every model in this selection. Free advice, in-store or by phone.
Contact our experts View all DeWalt batteries →5. DeWalt DCB609: 20V/60V FlexVolt 9 Ah battery
A 9 Ah FlexVolt, the battery included with many 60V kits in our catalog.
The DCB609 has long been the reference for FlexVolt: 180 Wh, up to six times the runtime of a 1.5 Ah battery according to DeWalt, and operations advertised down to 0°F. It is also the battery included with the 60V DCS578X1 circular saw kit sold at Polar, making it a safe bet when you want the same battery as your tool.
Today, it has a pricing problem: at $339, it costs $11 more than the DCB612 ($328) for 3 Ah less at 20V and 1 Ah less at 60V. Its advantage: 21 units in stock, more than double that of the DCB612. If availability is your priority, it remains a good choice. Otherwise, the DCB612 is a better value in the same form factor.
Pros
- 9 Ah at 20V and 3 Ah at 60V: an excellent balance of weight and runtime
- 21 units in stock, the second-highest FlexVolt availability
- Included with several 60V kits: easy to pair with your tools
- Works down to 0°F (approx. -18°C)
Things to consider
- At $38 per amp-hour, the least cost-effective FlexVolt: the DCB612 offers more for less
- $339 for a single battery
Ideal for: someone who wants a spare battery identical to the one in their 60V kit.
Not ideal for: someone buying primarily for runtime at the best price (see the DCB612).
Price: $339
View the DCB609 at Polar →6. DeWalt DCB2108: 20V MAX XR POWERPACK 8 Ah battery
An 8 Ah tabless-cell battery, designed for high-drain 20V tools and cold weather.
The DCB2108 replaces traditional cylindrical cells with tabless cells, an architecture that, according to the product sheet, reduces heat buildup and allows for more power draw. At 8 Ah, it targets high-drain 20V tools: grinders, circular saws, and 20V hammer drills. The spec sheet advertises operation down to -17°C, a compelling selling point for a Quebec winter.
To compare it honestly: the DCB208 two-battery kit (8 Ah, $328) works out to $164 per unit, which is $55 less than the DCB2108 at $219. If you are just looking for 8 Ah at the best price, the DCB208 pair wins. The DCB2108 is justified when cold-weather performance and heat management really count, or when you only want a single battery.
Pros
- 8 Ah on the entire 20V MAX platform, at $27 per amp-hour
- Tabless cells, designed for better heat and power management
- Advertised operation down to -17°C
- Lighter form factor than a 10 Ah battery
Things to consider
- The DCB208 pair (8 Ah, $328) is cheaper per unit: $164 vs $219
- Only 5 units in stock at the time of writing
- Does not work on 60V tools
Ideal for: a 20V fleet used outdoors in winter, or demanding 20V tools (grinder, circular saw).
Not ideal for: someone looking only for 8 Ah at the best price (see the DCB208 2-battery kit) or a 60V tool (see the DCB606).
Price: $219
View the DCB2108 at Polar →7. DeWalt DCBP318: 20V MAX POWERSTACK 3.5 Ah battery
Best compact battery, for tools used for long periods or in tight spaces.
The PowerStack abandons cylindrical cells for stacked flat cells, resulting in a lower-profile battery: 15% smaller according to the product sheet. On a compact drill or driver, this translates to a tool that is better balanced, shorter, and more comfortable to hold. At 3.5 Ah, it sits between 2 Ah compacts and 5 Ah batteries.
Testing by Protégez-Vous (June 2022) reports that these batteries should support twice as many charge cycles as 2 Ah batteries, according to the manufacturer, and that the higher capacity allows for faster drilling in hard materials. Its weak point remains the price: $51 per amp-hour, the highest in our selection. Here, you are paying for the form factor and power, not just the amp-hours.
Pros
- Low and compact profile, better balance on lightweight tools
- Fast charging advertised from 40 to 55 minutes
- Compatible with all 20V MAX tools
- 10 units in stock
Things to consider
- $51 per amp-hour: the most expensive capacity in the ranking
- 3.5 Ah: insufficient for a long day of work on a power-hungry tool
Ideal for: drills, drivers, and compact tools used for extended periods or overhead.
Not ideal for: a tight budget or high-runtime needs (see the DCB210 or DCB2108).
Price: $179
View the DCBP318 at Polar →8. DeWalt DCB112: 3 Ah battery and charger
Best starter kit: a compact battery and a fast charger for $97.
The DCB112 starter kit includes a 3 Ah compact battery and a fast charger whose multi-function indicator signals the charge level, battery temperature, and when it is time to replace it. It is compatible with DeWalt's entire 20V MAX range. It is the cheapest way to enter the platform when buying a tool sold without a battery.
The price per amp-hour is not comparable here because the charger is included. Its limitation is capacity: 3 Ah holds up well on a drill or driver for occasional work, less so on a grinder or circular saw. Many of our clients pick this up as a backup battery for a tool they already own.
Pros
- Lowest price in the ranking: $97 with charger
- Fast charger with multi-function indicator included
- Compatible with all 20V MAX tools
- Compact and lightweight form factor
Things to consider
- 3 Ah: too tight for intensive use or a power-hungry tool
- Does not work on 60V tools
Ideal for: a first DeWalt tool sold without a battery, or a lightweight backup battery.
Not ideal for: long days on a construction site (see the DCB606 2-pack or the DCB210).
Price: $97
View the DCB112 kit at Polar →How to choose among the best DeWalt batteries
20V MAX or FlexVolt: the first decision
Every DeWalt battery in this ranking works on your 20V MAX tools. The real question is whether you will ever have a 60V MAX tool (circular saw, grinder, hammer drill, high-power blower). If yes, a FlexVolt (DCB606, DCB612, DCB609) covers both. If no, a 20V MAX (DCB210, DCB2108) costs less for equivalent capacity.
Compatibility is one-way. A FlexVolt powers 20V, 60V, and 120V MAX tools. A 20V MAX cannot power a 60V tool. On labels, 20V MAX batteries are also called 18V in some countries: they are the same thing, with 20V being the maximum voltage at no-load and 18V being the nominal voltage. For the full breakdown, our guide 20V MAX vs FlexVolt details every case.
Amp-hour capacity and real-world runtime
Amp-hours (Ah) measure the amount of stored energy. All things being equal, a 6 Ah battery lasts about twice as long as a 3 Ah battery on the same tool. According to DeWalt, a 9 Ah FlexVolt offers up to six times the runtime of a 1.5 Ah battery on 20V MAX tools.
But battery life also depends on what the tool is doing. A drill boring into soft wood consumes little power. A circular saw cutting through structural lumber or a grinder working on steel drains the battery much faster. That is why the same model may be sufficient for a cabinetmaker but feel inadequate for a roofer. The test by Protégez-Vous also points out that a 5 Ah battery allows a drill to bore through hard material faster than a 2 Ah battery.
Price per amp-hour
The listed price does not tell the whole story. A $179 battery that offers 3.5 Ah costs $51 per amp-hour. The set of two DCB606s at $298 costs $25 per amp-hour. Over time, the difference is significant: for the same budget, you do not get the same amount of battery life.
The ranking by price per amp-hour in 20V mode, from most economical to most expensive: set of 2 DCB606 ($25), DCB210 ($26), DCB612 ($27), DCB2108 ($27), DCB606 ($33), DCB609 ($38), DCBP318 ($51). This ranking does not tell you which battery to buy: the PowerStack is expensive per amp-hour, but it is the most compact. It serves to ensure you do not pay more than necessary for the capacity you need.
Weight and comfort on the tool
The more capacity increases, the bigger and heavier the battery becomes. The DCB210 weighs about 1.1 kg (2.4 lbs); the DCB612 is even heavier, while the DCB606 and the PowerStack are noticeably lighter. On a drill held at arm's length at the ceiling, this weight is felt in a few minutes. On a circular saw placed on a workbench, you do not notice it.
The form factor also matters: 8 to 12 Ah batteries are longer. They can make certain compact tools less balanced, or even less practical in tight spaces. For these uses, the low-profile PowerStack or the DCB606 are better allies.
Quebec cold
All lithium-ion batteries lose performance in the cold. DeWalt indicates operation down to 0 °F (about -18 °C) for the FlexVolt DCB609 and DCB612, and the DCB2108 spec sheet lists -17 °C. These are operating limits, not a guarantee of full battery life at these temperatures.
In practice, it is better to keep batteries warm (in the cab, not on the truck bed) and to choose a higher capacity in the winter, because part of the energy becomes unusable in the cold. A battery taken from a freezing vehicle will provide less than the same battery warmed up.
The charger
A high-capacity battery with a slow charger means waiting for several hours. The DCB606 recharges in about 90 minutes on a DCB118 rapid charger ($99), according to the product sheet. The standard DCB115 charger ($35) also charges 20V MAX and FlexVolt batteries, but more slowly for large capacities. For daily use, a rapid charger is an investment that pays for itself quickly. Our comparison of the best battery chargers for cordless tools details the options, and the DeWalt Charger collection groups together the available models.
Budget: which battery for what amount
| Budget | Batteries to consider | For whom |
|---|---|---|
| Under $100 | DCB112 with charger ($97) | First tool or backup battery |
| $100 to $220 | DCBP318 ($179), DCB606 ($199), DCB2108 ($219) | Compactness, mixed 20V/60V fleet, demanding 20V tools |
| $220 to $300 | DCB210 ($259), Set of 2 x DCB606 ($298) | Long 20V battery life, battery rotation |
| $300 and up | DCB612 ($328), DCB609 ($339) | 60V tools used at full capacity |
Lifespan and maintenance of a DeWalt battery
DeWalt covers its batteries with a 3-year limited warranty, with one year of free service and a 90-day satisfaction guarantee. Beyond the warranty, the actual lifespan depends on three things: the number of charge cycles, heat, and storage.
A few simple habits help keep a battery in shape:
- store it at room temperature: the DCB606 spec sheet indicates 0 to 45 °C as the optimal storage range
- do not leave it in a vehicle in direct sunlight in summer or in a freezing truck in winter
- do not charge it immediately after long use, while it is still hot
- use a compatible DeWalt charger and do not leave it plugged in for weeks for no reason
If you alternate between two batteries, they wear out more slowly because they go through fewer cycles each. This is another argument in favor of the set of two DCB606s.
Ready to choose your DeWalt battery?
Équipement Polar has been distributing DeWalt batteries since 1991, in-store in Quebec City and Chicoutimi, and online. Free delivery on orders over $150 everywhere in Canada.
View 20V MAX batteries → View FlexVolt batteries →FAQ: best DeWalt batteries
For the majority of buyers, the DCB606 (FlexVolt 6 Ah, $199): it works on both 20V MAX and 60V MAX tools. For the longest battery life, the DCB612 in FlexVolt and the DCB210 in 20V MAX. For the best price per amp-hour, the set of two DCB606s.
Three things: the platform (20V MAX or FlexVolt, which also works at 60V), the amp-hour capacity, and the cell technology (XR cylindrical, PowerStack with flat cells, POWERPACK tabless). The model number is the only reliable guide: DCB2XX for 20V MAX, DCB6XX for FlexVolt.
DeWalt offers a 3-year limited warranty, plus one year of free service. The actual duration depends on the number of charge cycles, heat, and storage. Alternating between two batteries and avoiding extreme heat are the two simplest ways to extend it.
Yes. A FlexVolt battery automatically switches to 20V on a 20V MAX tool, without any settings. You do not need to replace your existing 20V batteries: the two platforms coexist without issues.
No. A 60V MAX tool requires a FlexVolt battery. A standard 20V MAX does not have the cell configuration necessary to provide 60V.
DeWalt indicates operation down to 0 °F (about -18 °C) for the FlexVolt DCB609 and DCB612, and the DCB2108 spec sheet lists -17 °C. Higher capacity helps maintain runtime when it is cold, and it is better to keep batteries warm between uses.
Équipement Industriel Polar has been distributing DeWalt batteries since 1991. In-store in Quebec City (3425 boulevard Wilfrid-Hamel) and Chicoutimi, or online at equipementpolar.com. Free delivery from $150, anywhere in Canada in 2 to 5 business days.
Our verdict on the best DeWalt batteries
There is no single best DeWalt battery, but there is a good battery for every use. Here is how I would decide.
- You want one single battery that does it all: the DCB606, at $199.
- You want the best price for battery life: the set of two DCB606s, at $298.
- You work all day on 60V tools: the DCB612, at $328.
- You will only have 20V tools: the DCB210, at $259, or the DCB2108 for winter.
- You hold the tool for a long time or overhead: the DCBP318, at $179.
- You are getting started: the DCB112 with charger, at $97.
If you are still hesitating between two models, come see us in Quebec City or Chicoutimi, or contact us: we know every battery in this selection and will tell you which one suits your tools. For other brands, also discover our industrial battery buying guide, or explore the best DeWalt batteries in our collection.