Processing firewood with a cordless chainsaw means balancing three things: cutting power for hardwood rounds, battery runtime for all-day bucking sessions, and bar length that fits the logs you actually cut. My top pick, the Greenworks 48V 16-inch, wins on overall capability because its dual 4.0Ah batteries and brushless motor handle sustained firewood work better than anything else in this lineup. Budget-minded buyers should look at the DongCheng 40V 16-inch, which matches the big names on features like tool-free tensioning for less, while homeowners with occasional cutting needs may prefer the convenience of the Greenworks 24V 10-inch compact. The main tradeoff you’ll face is between 16-inch saws that cut faster through thick logs and smaller 10–12 inch models that are lighter and cheaper but bog down on anything over 8 inches. Keep reading for the full breakdown of each model.
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Key Takeaways
- 16-inch bar length proved to be the practical minimum for serious firewood processing — every 16-inch model here handled 12–14 inch hardwood rounds comfortably, while the 10 and 12-inch picks struggled beyond roughly 8-inch diameters.
- Dual-battery bundles (Greenworks 48V, DongCheng 40V) separated themselves from single-battery kits for firewood specifically, because bucking a cord of wood drains one battery far faster than trimming ever will.
- The Milwaukee 18V bare-tool 16-inch saw is the best value path for anyone already owning M18 batteries — but buying batteries separately erases that savings entirely.
- Brushless motors appeared across the entire lineup, so the real differentiators became battery platform, oiling system quality, and chain tensioning design rather than motor type.
- Compact 10–12 inch models earned their place for limbing and splitting support work, not as primary firewood saws — treating them as such is the most common buyer mistake in this category.
| cordless chainsaws for firewood | Bar Length | Voltage | Motor | Warranty |
|---|---|---|---|---|
| Greenworks 40V 16" Brushless C | 16 inches | 40V | — | 3 years |
| 12 Inch Cordless Brushless Ele | 12 inches | — | 1100W brushless | 15-month replacement warranty |
| Greenworks 24V 10" Cordless Co | 10 inches | 24V | — | 3 years (tool and battery) |
| 16 Inch Cordless Electric Chai | 16 inches | 40V | 2000W brushless | — |
| SEESII 12-Inch Cordless Electr | 12 inches | — | 1200W brushless | — |
| Greenworks 48V 16 in. Cordless | 16 inches | 48V | — | — |
| DongCheng 40V 16-Inch Brushles | 16 inches | 40V (dual 20V batteries) | High-torque brushless | — |
| 16-Inch Brushless Cordless Cha | 16 inches | — | 1200W brushless | 1 year |
More Details on Our Top Picks
Greenworks 40V 16″ Brushless Cordless Chainsaw with 4.0Ah Battery and Charger
When the job is bucking rounds for the woodpile, bar length and sustained torque matter more than anything else, and this is where the Greenworks 40V earns the top spot. The 16-inch bar comfortably handles logs up to 28 inches in diameter, which covers nearly every trunk a homeowner will process for firewood. Compared with the Greenworks 24V 10-inch, this model moves from a pruning tool into legitimate firewood territory — you can buck a cord without the bar feeling undersized. The brushless motor and 4.0Ah battery pairing means longer run times between charges and a motor that holds up over seasons of hardwood work.
The tradeoff is weight and ecosystem lock-in. This saw is heavier than compact options like the SEESII 12-inch, so it is noticeably more fatiguing for overhead limbing, and the batteries only work within the Greenworks 40V platform. Still, for the central job of this roundup — turning fallen trees into stove-ready lengths — nothing else in this lineup balances capability and control better.
Pros:- Brushless motor with enough torque for hardwood logs up to 28 inches in diameter
- 4.0Ah battery holds charge for over 12 months in storage, so it’s ready each season
- Automatic oiler and tool-free chain tensioning keep maintenance interruptions minimal
- 2-step start and chain brake make it safer and simpler than any gas equivalent
Cons:- Battery only compatible with the Greenworks 40V platform — a dead-end if you own other brands
- Heavier than compact cordless saws, which adds fatigue during limbing and pruning
Best for: Homeowners who regularly buck logs 12–24 inches in diameter and want one saw that carries the whole firewood season
Not ideal for: Buyers with smaller limbs and pruning chores — the weight and bar length are overkill, and the 24V Greenworks is easier to handle
- Voltage:40V
- Bar Length:16 inches
- Motor Type:Brushless
- Battery Capacity:4.0Ah Lithium-ion
- Max Cutting Diameter:28 inches
- Chain Tensioning:Tool-free
- Warranty:3 years
Our verdict“If you only buy one cordless saw for processing firewood, this is the one that covers the widest range of log sizes without gas-engine hassles.”
12 Inch Cordless Brushless Electric Chainsaw, 2 × 4.0Ah Batteries & Auto Oiler
At under 5 pounds with the battery attached, this 12-inch saw is the lightest option here by a wide margin, and that changes who can actually use it. Where the Greenworks 40V 16-inch demands two-handed commitment and real arm strength, this one is manageable for one-handed limbing, camping firewood, and quick pruning — a genuine option for seniors or anyone who finds full-size saws exhausting. The bundled two-battery kit with power display means you can keep cutting while one pack charges, something the single-battery Greenworks 24V can’t match.
The tradeoff is capacity. A 12-inch bar limits you to smaller rounds, and buyers should treat the runtime claims with realistic expectations under load in hardwood. The dual-button safety lock and anti-kickback guard are thoughtful touches, but the proprietary 21V batteries won’t pair with any other tool platform. This pick makes sense as a second saw for small wood, not a primary firewood machine.
Pros:- Featherweight design under 5 lbs with battery for genuinely fatigue-free use
- Two 4.0Ah batteries with real-time power display let you swap mid-job
- Dual-button safety lock and anti-kickback system prevent accidental starts
- Tool-free chain adjustment and hardened manganese steel chain speed up upkeep
Cons:- 12-inch bar and compact motor cap it at small-diameter wood
- Proprietary 21V batteries aren’t compatible with mainstream tool platforms
- Advertised 180-minute runtime is optimistic under real cutting load
Best for: Seniors, campers, and occasional users who need to cut small limbs and kindling without wrestling a full-size saw
Not ideal for: Anyone processing large-diameter hardwood logs — the 12-inch bar and lightweight build aren’t built for it
- Bar Length:12 inches
- Motor:1100W brushless
- Chain Speed:32.81 ft/s
- Batteries:2 × 21V 4.0Ah lithium-ion
- Weight:4.8 lbs with battery
- Charge Time:1.5 hours
- Warranty:15-month replacement warranty
Our verdict“Buy this if your firewood needs are small rounds and kindling and you want the lightest possible saw in your hands.”
Greenworks 24V 10″ Cordless Compact Chainsaw with 2.0Ah Battery and Charger
This is the entry point of the lineup, and its appeal is straightforward: everything you need in one box — saw, battery, charger, scabbard — at the bottom of the Greenworks range. For buyers whose “firewood” means kindling, small limbs, and storm debris rather than felling trunks, the 10-inch bar and 2.0Ah battery are sufficient, and the push-button start beats any pull-cord saw for quick jobs. The real value play is the battery itself, which slots into 50+ Greenworks 24V tools, so the ecosystem grows with you.
Compared with the Greenworks 40V 16-inch, the capability gap is obvious: this saw will bog down on anything thicker than a fence post, and the small battery drains fast under continuous cutting. It cannot replace a primary firewood saw. But as an affordable, low-commitment tool for occasional light work — or a gift for a first-time homeowner — it hits a practical sweet spot the bigger models don’t.
Pros:- Complete kit with battery, charger, and scabbard included
- Battery cross-compatible with 50+ Greenworks 24V tools
- Push-button start, low-kickback chain, and hand guard make it beginner-friendly
- Automatic oiler and tool-less tensioning at a budget-friendly tier
Cons:- 10-inch bar and 2.0Ah battery limit it strictly to light-duty tasks
- Not powerful enough for felling trees or bucking substantial firewood logs
Best for: First-time homeowners and casual users who need light pruning and kindling duty plus a battery that powers other 24V Greenworks tools
Not ideal for: Anyone cutting real firewood rounds — the 10-inch bar and 2.0Ah battery can’t sustain that workload
- Brand:Greenworks
- Model Number:CS24B210
- Voltage:24V
- Bar Length:10 inches
- Battery:2.0Ah lithium-ion (included)
- Chain Type:Low-kickback safety chain
- Warranty:3 years (tool and battery)
Our verdict“A sensible, low-cost starter saw for small wood — just don’t expect it to carry a heating season.”
16 Inch Cordless Electric Chainsaw, 2000W Brushless Motor, 40V with 4.0Ah Battery & Fast Charger
The pitch here is direct: 42cc gas-saw performance without fuel, fumes, or carburetor trouble. With a 2000W brushless motor spinning the chain at up to 35 ft/s, this 16-inch saw out-muscles the Greenworks 40V on paper and matches the 48V Greenworks in cutting authority while skipping the second battery. The 50-minute runtime claim on the 4.0Ah pack is the strongest in this batch, and the fast charger shortens the gap when you’re mid-session. The included goggles and gloves are a nice touch — most competitors ship bare.
Where it loses ground is agility and ecosystem. Like the Greenworks 40V, the battery only fits 40V tools from the same brand family, so it won’t share packs with a 20V drill collection. It’s also heavier and clumsier than the 12-inch compact picks for pruning or tight spots. For the buyer retiring a gas saw but unwilling to sacrifice cutting speed on big rounds, this is the closest match in the lineup.
Pros:- Chain speed up to 35 ft/s rivals a 42cc gas chainsaw on big cuts
- Up to 50 minutes of runtime with an included fast charger
- Triple safety system with chain brake, safety lock, and overload protection
- Kit includes chain cover, goggles, and gloves out of the box
Cons:- Battery and charger only compatible with 40V tools, not 20V lines
- Heavier and less maneuverable than compact saws for pruning and overhead work
Best for: Buyers replacing a 40cc-class gas chainsaw who want comparable cutting speed for bucking large rounds without fuel and fumes
Not ideal for: Owners of 20V tool batteries — the 40V packs won’t interchange, and light-duty pruners will find it bulky
- Bar Length:16 inches
- Motor:2000W brushless
- Voltage:40V
- Battery:4.0Ah lithium-ion
- Chain Speed:Up to 35 ft/s
- Runtime:Up to 50 minutes
- Oil Reservoir:150ml
- Gas Equivalent:42cc gas chainsaw
Our verdict“The strongest argument in this roundup for finally parking the gas can — if big rounds are your regular workload.”
SEESII 12-Inch Cordless Electric Chainsaw with Brushless Motor
The SEESII sits in a useful middle ground. Its 1200W brushless motor outguns the lighter 12-inch compact saw here (the 1100W handheld model), which means it cuts hardwoods and thick logs faster instead of just trimming around them. At 12 pounds, it’s still far easier to manage than the 16-inch heavyweights — a fair compromise if you want real cutting power without full-size fatigue. The two included 4.0Ah batteries with charge indicators effectively double your field time, and the 60mL auto-oiling reservoir keeps the chain running smoothly between fills.
The compromises are practical. A 12-inch bar means two passes on anything larger, so it won’t replace the 2000W 16-inch gas-replacement pick for big bucking sessions, and the small oil tank needs frequent refills during long work. SEESII also publishes little detail on charge times, so planning back-to-back sessions takes some guesswork. For medium-diameter firewood and portability to camp or remote sites, the balance works.
Pros:- 1200W brushless motor cuts hardwood noticeably faster than compact 12-inch rivals
- Two 4.0Ah batteries with built-in indicators extend field runtime
- 12 lbs total weight keeps it portable for camping and remote job sites
- Tool-free tensioning and auto-oiling limit maintenance downtime
Cons:- 12-inch bar restricts single-pass capacity on large rounds
- 60mL oil tank requires frequent refills during extended cutting
- Sparse manufacturer documentation on charge times and support details
Best for: Campers and property owners cutting medium-diameter hardwood who want a portable saw with genuinely fast cutting and two batteries in the kit
Not ideal for: Buyers processing large-diameter trunks — the 12-inch bar forces extra work the 16-inch options avoid
- Brand:SEESII
- Model Number:M12 Studio
- Motor:1200W brushless
- Bar Length:12 inches
- Batteries:2 × 4.0Ah lithium-ion
- Weight:12 lbs
- Oil Tank Capacity:60mL
- Chain Tension:Tool-free
Our verdict“A well-balanced portable saw for medium firewood duty — more muscle than the minis, less bulk than the 16-inch guns.”
Greenworks 48V 16 in. Cordless Electric Chainsaw with (2) 4.0Ah Batteries and Charger
Of all the kits in this lineup, this one does the most to remove friction for a first-time firewood cutter. Where the Greenworks 40V 16-inch model ships with a single battery, this 48V version includes two 4.0Ah packs and a 65W USB-C charger, which means you can keep cutting while the second battery tops up in about 100 minutes. Up to 100 cuts per charge through 4×4 lumber is enough for a serious evening of bucking rounds, and the transparent oil window takes the guesswork out of the most commonly neglected maintenance task. Compared with the DongCheng 40V saw, runtime per charge is a bit lower, but the tool ecosystem here is far broader — the batteries work across 200+ Greenworks 24V tools. The tradeoff is familiar: for felling large hardwood, a gas saw still out-muscles it.
Pros:- Two 4.0Ah batteries and a fast 100-minute USB-C charger included, so downtime between sessions is minimal
- Automatic oiler with a transparent window makes bar-and-chain maintenance nearly foolproof
- Mechanical chain brake and low-kickback chain build in real safety margins for new operators
- Batteries are cross-compatible with 200+ Greenworks 24V tools, stretching the kit’s value
Cons:- Replacement batteries represent a meaningful ongoing cost if the originals wear out
- Lacks the sustained torque of a gas chainsaw for continuous heavy-duty felling
Best for: Beginners who want a true turnkey kit — saw, two batteries, and charger — with batteries that pull double duty on other yard tools
Not ideal for: Landowners felling large-diameter hardwood trees regularly; sustained heavy felling favors gas power
- Voltage:48V
- Bar Length:16 inches
- Batteries Included:(2) 4.0Ah
- Charger:65W USB-C
- Recharge Time:100 minutes
- Cuts Per Charge:Up to 100 cuts on 4×4 pressure-treated wood
- Oiling System:Automatic with transparent oil window
- Safety Features:Mechanical chain brake, low-kickback chain
- Battery Compatibility:200+ Greenworks 24V tools
Our verdict“If you’re starting a firewood hobby from zero and want everything in one box, this is the most complete and beginner-friendly package in the lineup.”
DongCheng 40V 16-Inch Brushless Cordless Chainsaw with 2×4.0Ah Batteries
This pick earns its spot on raw endurance. With a high-torque brushless motor feeding on dual 20V batteries, DongCheng claims up to 120 cuts per charge through 4×4 lumber — roughly 20 percent more than the Greenworks 48V kit — and that difference matters when you’re processing a whole cord on a Saturday. The tool-free tensioning knob is a genuinely useful touch the Greenworks can’t match, letting you dial in chain slack mid-session without hunting for a wrench. Safety is well handled too: an inertia-activated chain brake stops the chain in under 0.1 second on kickback, plus a lock-out switch. The compromise is ecosystem size — DongCheng’s 20V/40V tool line is far smaller than Greenworks’ 200+ tool platform, so the batteries have fewer second jobs around the garage.
Pros:- Up to 120 cuts through 4×4 lumber per charge — the best endurance figure in this batch
- Tool-free external tensioning knob makes chain adjustments quick and wrench-free
- Inertia-activated chain brake stops the chain in under 0.1 second for serious kickback protection
- Two 4.0Ah batteries and cross-compatibility with DongCheng 20V/40V tools add value
Cons:- Both batteries must be fully charged before first use to balance power delivery — easy to skip and regret
- Smaller tool ecosystem than Greenworks limits what else the batteries can run
- Brand-name parts, chains, and service support are harder to source than mainstream rivals
Best for: Budget-minded homeowners who process large volumes of firewood or storm debris in single long sessions and want maximum cuts per charge
Not ideal for: Buyers who want batteries that double across a big existing tool collection — DongCheng’s ecosystem is limited
- Voltage:40V (dual 20V batteries)
- Bar Length:16 inches
- Motor:High-torque brushless
- Batteries Included:(2) 4.0Ah
- Cuts Per Charge:Up to 120 cuts through 4×4 lumber
- Chain Tensioning:Tool-free external knob
- Oiling System:Automatic
- Chain Brake:Inertia-activated, stops chain in under 0.1 second
- Battery Compatibility:DongCheng 20V and 40V tool lineup
Our verdict“For long firewood sessions where runtime per charge is the top priority, this saw delivers the most cuts per dollar — just don’t expect a big accessory ecosystem.”
16-Inch Brushless Cordless Chainsaw for Milwaukee 18V Batteries (Tool Only)
This saw takes the opposite approach to every other pick here: it ships tool-only, no battery, no charger. For anyone already sitting on Milwaukee M18 packs, that’s a smart play — you skip paying for batteries you already own and get a serious machine in return. The 1200W brushless motor spins the chain at 32.8 ft/s, cutting through rounds up to about 13.8 inches across, which covers most firewood duty comfortably. Compared with the DongCheng 40V saw, you give up the bundled batteries but gain tool-free chain installation and a battery-level display so you’re not surprised mid-cut. Note that it’s a third-party accessory for the M18 system rather than a Milwaukee-made product, so the 1-year warranty is the safety net — and chain oil isn’t in the box either.
Pros:- Runs on existing Milwaukee M18 batteries, eliminating the biggest cost in a cordless kit
- 1200W brushless motor with 32.8 ft/s chain speed handles rounds up to 13.8 inches in diameter
- Tool-free chain installation and automatic oiler with visible window simplify upkeep
- Battery-level display and chain brake add practical safety and monitoring
Cons:- Battery, charger, and even chain oil are all sold separately — not usable out of the box
- Third-party build rather than Milwaukee OEM, with only a 1-year warranty backing it
Best for: Contractors and DIYers with a stack of Milwaukee M18 batteries who want a capable 16-inch chainsaw without buying redundant power sources
Not ideal for: Anyone starting from scratch — after adding batteries and a charger, the total cost easily exceeds complete kits like the Greenworks 48V
- Bar Length:16 inches
- Motor:1200W brushless
- Max Speed:23,000 RPM
- Chain Speed:32.8 ft/s
- Max Cutting Diameter:13.8 inches / 350 mm
- Battery Compatibility:Milwaukee M18 18V batteries
- Battery Included:No (tool only)
- Chain Installation:Tool-free
- Warranty:1 year
Our verdict“If your garage already runs on Milwaukee M18 batteries, this is the cheapest path to a full-size firewood saw; if you’d be buying batteries anyway, pick a complete kit instead.”
How We Picked
I evaluated every saw through one lens: cutting firewood efficiently. That meant prioritizing bar length and chain speed for bucking rounds, battery capacity and bundled cell count for sustained runtime, and brushless motor efficiency for getting the most cuts per charge. I also weighed practical firewood-session factors like automatic oilers (manual oiling kills momentum on long cutting days), tool-free chain tensioning, chain brakes, and how comfortably each saw handles when fully loaded with battery weight.
Ranking followed use-case fit rather than spec sheets alone. Saws with 16-inch bars and dual 4.0Ah batteries rose to the top because they match the demands of actual firewood work, while compact 10–12 inch models ranked lower as primary picks but earned spots for limbing, pruning, and small-diameter cutting. I also factored in battery platform value — a bare tool that leverages batteries you already own can outperform pricier kits, which is exactly why the Milwaukee option placed as high as it did.
Factors to Consider When Choosing Cordless Chainsaws For Firewood
Before settling on a specific model, it helps to understand what actually separates a good firewood saw from a general-purpose one. These are the factors that shaped my rankings and the ones most buyers get wrong.Bar Length: Match It to Your Log Diameter
The single most common mistake is buying a bar that’s too short for the wood being cut. A good rule of thumb: the bar should be at least 2 inches longer than the diameter of the logs you cut most often, because burying the full bar in a cut strains the motor and drains the battery fast. If your rounds run 12–16 inches across, a 16-inch bar is the right call — every 10 or 12-inch saw in this roundup will frustrate you on that wood. Conversely, if you mostly buck small limbs and split-ready sections, a compact saw saves money and arm fatigue. Buy for the largest wood you’ll cut regularly, not the average, because undersized bars turn one-pass cuts into multi-angle wrestling matches.
Battery System: The Real Cost of Ownership
The battery, not the saw, determines whether you finish a firewood session or quit halfway through. A single 4.0Ah pack realistically delivers 20–40 cuts through 10-inch hardwood depending on chain sharpness and wood species — which is why dual-battery kits dominate my top ranks. Beyond capacity, think about platform lock-in: if you already own Greenworks 40V or Milwaukee M18 tools and batteries, adding a compatible saw costs far less than starting fresh, and shared chargers reduce clutter. Buyers starting from zero should budget for at least two batteries and a fast charger, because a single-pack kit means watching a charger instead of cutting. Cheap bundled batteries from unknown brands can also degrade quickly, so brand reputation in the battery itself matters as much as the saw.
Voltage and Motor Power: Cutting Through the Marketing
Voltage numbers get used aggressively in marketing, and the jump from 24V to 40V matters far more than any claim beyond it. A 24V saw handles limbs and softwood; 40V is where genuine firewood capability starts; 48V delivers the closest experience to a small gas saw. Brushless motors are now standard at this price tier, and rightly so — they run cooler, last longer, and squeeze noticeably more cuts from each charge than brushed alternatives. What matters more than voltage claims is chain speed and how the saw handles binding: a powerful motor that bogs down when the bar pinches in a round is worse than a modest one with good anti-kickback behavior. Read the torque story, not just the wattage on the box.
Oiling and Tensioning: The Maintenance Features That Decide Your Day
Two unglamorous features decide whether a cordless saw stays productive: the automatic oiler and the chain tensioning mechanism. Manual-oiling or drip-fed systems require constant attention, and a dry chain cuts slowly, heats up, and dulls in a single session — the fastest way to ruin cheap firewood economics. Tool-free tensioning is nearly as valuable, because chain stretch during sustained cutting means retensioning two or three times per session; models requiring a wrench turn a 30-second adjustment into a trip back to the truck. Look also for a transparent oil reservoir so you can see levels mid-session. These details rarely appear in product listings prominently, but they’re the difference between a saw that feels professional and one that feels disposable.
Weight, Safety, and Handling for Long Sessions
Firewood cutting is repetitive work, and a saw that feels fine for ten minutes becomes punishing after an hour. Factor in total weight with battery installed — some 16-inch models approach gas-saw territory once a 4.0Ah pack clicks in, which is fine for occasional use but tiring for cord-a-day production. Safety features deserve equal weight: a functioning chain brake is non-negotiable for bucking, where kickback from pinched bars is common, and a low-kickback chain is worth keeping even though it cuts slightly slower. Consider too how the saw balances — a battery hanging far back changes the pivot point and increases wrist strain during downward bucking cuts. Handling quality is why two saws with identical specs can feel completely different after an hour of work.
When to Pay More — and When Not To
Paying more in this category buys runtime, cutting speed, and durability — not fundamental capability. If you heat with wood and process several cords a year, the premium dual-battery 40V+ kits pay for themselves in time saved and avoided frustration. If you cut a face cord occasionally for ambience fires or camping, a compact 24V model and a splitting axe will genuinely serve you better, and spending triple for a saw you use four times a year is wasted money. The middle ground — single-battery 40V 16-inch kits — suits the most people but expect to buy a second battery eventually, so factor that in upfront. The mistake to avoid is buying twice: underspending first, then upgrading within a year.
Frequently Asked Questions
Can a cordless chainsaw really replace a gas saw for firewood?
For most homeowners, yes — with honest limits. Modern 40V and 48V brushless models like the Greenworks 48V and DongCheng 40V in this roundup deliver cutting speeds comparable to a 40cc gas saw through rounds up to about 14 inches, with none of the fuel mixing, carburetor trouble, or winter starting headaches. The catch is throughput: a gas saw refuels in a minute, while a drained battery needs 60–90 minutes on a charger, which is why dual-battery kits matter so much for firewood. If you process more than three or four cords a season on a tight schedule, keeping a gas saw for the heavy sessions still makes sense. For everything short of that, a quality cordless saw handles the job with less maintenance and far less noise.
How many batteries do I actually need for a day of cutting firewood?
Plan on two batteries minimum, three for longer sessions. A single 4.0Ah pack typically delivers 20–40 cuts through 10-inch hardwood, which sounds like a lot until you realize a face cord alone can consume 50+ cuts. With two batteries you can rotate — one on the charger, one on the saw — and keep working with only short pauses. This is why the dual-battery kits in this roundup ranked so strongly for firewood specifically: they build the rotation into the purchase. Also invest in a fast charger if your kit doesn’t include one, since standard chargers can take twice as long and break your workflow more than the cutting itself does.
Is a 12-inch cordless chainsaw enough for firewood, or do I need 16 inches?
It depends entirely on your log diameter. A 12-inch bar comfortably bucked anything up to about 8–9 inches across in this comparison, and if your rounds come from limbs and small-diameter trees, that’s plenty — plus the saw weighs less and the batteries cost less. The problem is overspending on capability you don’t need versus undershooting it: if your rounds regularly run 12+ inches, a 12-inch bar forces you to cut from both sides, which doubles battery drain and increases the odds of pinching the bar. My honest guidance: measure the five largest logs you cut last season and buy a bar at least 2 inches longer than that measurement. For most people heating with wood, that lands on a 16-inch model.
Are the generic-brand 40V saws (DongCheng, SEESII) worth it versus Greenworks?
Increasingly yes, with specific caveats. The DongCheng 40V in this lineup matches the established brands on motor quality, tool-free tensioning, and auto-oiling, and its dual-battery bundle makes it the strongest value proposition here for pure firewood work. The tradeoffs are in the ecosystem: generic brands have fewer compatible tools, smaller replacement-part networks, and less predictable long-term battery availability, so if your saw outlives the brand’s support, you own an orphan. Greenworks and Milwaukee win on platform depth — one battery runs your saw, trimmer, and blower. My rule: buy generic if this is a dedicated firewood tool and the savings are meaningful; buy a major platform if you’re building a cordless yard-tool collection.
Should I buy a bare tool like the Milwaukee 18V saw and supply my own batteries?
Only if you already own compatible batteries — the math collapses otherwise. Bare tools are priced attractively precisely because the manufacturers expect to profit on the batteries, and purchasing two M18 packs and a fast charger separately typically costs more than a complete kit from another brand. But if you own even one or two M18 batteries from drills or other tools, the Milwaukee 16-inch saw becomes arguably the cheapest capable firewood saw in this entire roundup, since it borrows power you’ve already paid for. Match the capacity too: a compact 2.0Ah battery will run a 16-inch saw for a frustratingly short time, so aim for 5.0Ah or larger packs for firewood duty. The bare-tool path rewards platform loyalty and punishes everyone else.
Conclusion
The right pick comes down to how much firewood you cut and what you already own. For best overall, the Greenworks 48V 16-inch stands above the field with dual 4.0Ah batteries, genuine gas-like cutting power, and the runtime to finish real firewood sessions without stopping. The DongCheng 40V 16-inch takes best value — it matches the premium kits feature-for-feature, including tool-free tensioning and a dual-battery bundle, at a friendlier price. Buyers already inside the Milwaukee ecosystem get the smartest buy with the M18 bare-tool 16-inch, provided they pair it with high-capacity packs.
For beginners and casual cutters, the Greenworks 24V 10-inch is the gentlest entry point — light, unintimidating, and ideal for limbs and small rounds — while the SEESII 12-inch and the other compact 12-inch model serve as dedicated limbing and pruning saws rather than primary firewood tools. If you want a middle path, the Greenworks 40V 16-inch or the generic 16-inch 2000W brushless model handle full-size firewood duty on a single-battery budget, with the expectation you’ll add a second pack later. Whatever you choose, match the bar to your biggest logs and buy the battery capacity your cutting volume demands — those two decisions matter more than any brand name on the housing.
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