Are Battery Chainsaws as Powerful as Gas Chainsaws? (Guide)
Chainsaws are powerful tools that can make quick work of cutting and pruning trees, logs, and brush. For years, gas-powered chainsaws have been the standard equipment for most homeowners and professional tree care services.
However, recent improvements in lithium-ion battery technology have led to a new generation of cordless battery-powered chainsaws that rival the cutting power of gas models.
Key Factors in Chainsaw Power
When evaluating a chainsaw’s power, there are a few key specifications to consider:
Engine/Motor Power
This rating indicates the maximum power output of the chainsaw. For gas models it is rated in engine displacement (cc), while battery models use voltage to rate motor power. More power means faster cutting, especially for thicker wood.
Gas: 25-65cc engines common for home use
Battery: 36-80V motors in homeowner models
Chain Speed
Measured in meters/second, chain speed determines how fast the cutting teeth move through the wood. Faster chain speed increases cutting efficiency.
Gas: Over 20 m/s on high-performance models
Battery: Typically 10-15 m/s for non-commercial use
Torque
Torque indicates rotational force, which allows the chain to overcome resistance when cutting. More torque means easier cutting through dense wood.
Gas: Up to 5 Nm on some models
Battery: 1-4 Nm depending on voltage
Direct Comparison
Looking at equivalent models for casual homeowner use, gas and battery chainsaws can deliver fairly comparable power. Many 40-60V lithium-ion models can match the cutting performance of gas saws under 30cc.
However, when moving into extended use saws for landowners and tree care pros, high-performance gas chainsaws maintain a power advantage. Professional-grade gas chainsaws over 50cc simply output more raw strength than even the best battery saws currently available. The limited run time of batteries also remains a challenge for all-day use.
Tips for Choosing the Right Chainsaw
When deciding between gas and battery power for your chainsaw, consider what how you plan to use it:
Occasional Use
For only occasional pruning or cutting jobs around your property, a cordless battery model provides convenience without worrying about fuel, engine maintenance, or pull cords. Modern lithium-ion batteries can easily make 100-200 cuts on smaller trees and brush between charges.
Regular Use
If you plan to use your chainsaw regularly for storm cleanup, gathering firewood, or basic tree care, a more powerful gas chainsaw is still likely the best choice. The extended run time and proven power output will handle frequent use better over the long run.
All-Day Use
Professional tree surgeons, arborists, and foresters who use chainsaws for hours at a time will require the sustained endurance of a commercial-grade gas chainsaw. While battery technology is improving, gas models are still the only practical choice for all-day heavy-duty use.
Gas Chainsaw Buying Considerations
For homeowners or tree care pros selecting a gas chainsaw, keep these factors in mind:
- Engine Power – Look for at least 35cc displacement for frequent use. 50cc+ is best for heavy cutting.
- Bar Length – The bar guides the chain. Opt for at least 18-inches reach to cut wider material.
- Chain Type – Skip-tooth chains stay sharp longer. Consider safety features like chain brakes and anti-vibration.
- Brand Reputation – Stihl, Husqvarna, and Echo are leading gas chainsaw brands. Avoid cheap models for heavy use.
- Maintenance Needs – All gas engines require fuel stabilizer, air filters cleaning, spark plug changes, lubrication, etc. Budget for annual tune-ups.
Key Tip: For maximum safety and lowest fatigue, always use both hands while operating a chainsaw, wear protective Kevlar leg chaps, boots, goggles and headphones. Work cautiously, don’t overextend your reach, and take regular breaks.
Battery Chainsaw Buying Considerations
Cordless battery powered chainsaws provide great convenience for homeowners tackling occasional cutting jobs. When selecting one, keep these aspects in mind:
- Voltage – 40V+ models have power approaching smaller gas saws. 60V+ reaches mid-size gas range.
- Bar Size – Most battery saws have 16-18” bars suitable for light-duty use. Some offer 20”+ bars approaching gas model capacity.
- Run Time – Depends on battery Ah (amp hour) rating. 4.0-5.0 Ah is common, giving 30-60 mins use per charge. Spare batteries extend run time.
- Charging time – Lithium-ion batteries take 30-60 minutes to fully recharge after draining. Rapid chargers available on some models.
- Brushless Motor – More efficient power transfer for maximizing cutting performance.
- Safety Features – Look for chain brakes, low kickback chains, and hand protection. Use PPE like with any chainsaw.
Key Tip: The key advantage of battery chainsaws is the lack of pull cords, engine maintenance and noxious exhaust. Combined with lithium-ion power approaching gas models, they make an excellent choice for homeowners.
Common Chainsaw Issues & Solutions
While modern chainsaws are relatively reliable if properly maintained, they operate under heavy loads and in harsh environmental conditions that can lead to issues over time. Some common problems and troubleshooting tips include:
Gas Chainsaw Won’t Start
- Check fuel level and quality – stale gas causes issues
- Replace spark plug
- Clean/replace air filter
- Check chain brake disengaged
- Try starting fluid spray if still won’t turn over
Chainsaw Stalls When Cutting
- Dirty air filter reducing performance
- Check chain tension and guide bar condition
- Could indicate failing ignition module/coil
Chainsaw Smoking & Burning Oil
- Bar oil tank could be overfilled or leaking
- Worn piston rings allowing oil into combustion chamber
Chainsaw Chain Loose/Jumping Track
- Chain tension needs adjustment
- Check guide bar and sprocket for wear/damage
Chainsaw Cutting Crooked/Inaccurate
- Inspect guide bar is straight and mount is tight
- Could indicate loose/damaged clutch
Battery Chainsaw Won’t Start
- Check battery charge level
- Clean battery contacts if corroded
- Battery not seating fully into place
Battery Chainsaw Underperforming
- Let battery fully recharge after each use
- Battery may have reduced capacity from age/damage
- Check chain tension and sharpness
Chainsaw Safety Tips & Preventative Measures
While extremely useful tools, chainsaws must be operated with caution and the proper protective equipment to avoid serious injuries. Here are key safety measures all chainsaw users should follow:
Use Proper Gear – Chaps, boots, helmet, goggles, and gloves specifically designed for chainsaw use help prevent severe cuts and kickback injuries. Hearing protection is also essential.
Prepare Work Area – Clear away debris, create steady footing, check for overhead wires or other hazards before starting any cuts.
Use Both Hands – Firm, two-handed operation gives maximum control and helps brace against kickbacks. Don’t overextend your reach.
Maintain Your Saw – Keep the chain sharpened and properly tensioned. Check fuel/oil levels. Clean air filter and replace spark plugs regularly.
Check Chain Brake – Ensure chain brake is functioning properly. Test it regularly and engage whenever the saw is idling.
Cut at Optimal Speeds – Match the engine speed to the size of the wood for clean, efficient cutting and less chain wear. Don’t force cuts.
Stand Clear of Falling Trees – Use wedges and predetermined retreat paths when felling trees. Be extremely cautious of kickback from pinched chains or limbs twisting.
Allow Saw to Cool Before Refueling – Don’t refuel a hot chainsaw to avoid any fuel vapor ignition. Also use fuel stabilizer and don’t overfill.
Frequently Asked Questions
Q: Are battery chainsaws really as strong as gas models?
A: For light-duty homeowner use, the latest high-voltage lithium-ion models can deliver power on par with many mid-range gas saws. Heavier duty professional use still requires gas chainsaws for all-day endurance.
Q: How long will a battery charge last when using a chainsaw?
A: Expect 30-60 minutes of active cutting time from a fully charged 4.0-5.0 Ah battery. Actual run time depends on the thickness and density of wood being cut. Have a backup battery on hand for longer jobs.
Q: What safety gear should I use with any chainsaw?
A: Chainsaw-rated chaps, steel-toe boots, snug-fitting gloves, eye protection, and hearing protection are mandatory when operating a chainsaw. A helmet, long sleeves and leg protection are also highly recommended.
Q: How often do I need to sharpen/replace a chainsaw chain?
A: Expect to file touch up a chainsaw chain after every 1-2 hours of use. When cut quality declines and filing no longer restores sharpness, it’s time to replace the chain. Use narrow-kerf chains to extend replacement intervals.
Q: Should I clean or replace my chainsaw air filter?
A: Regularly blow out built-up dust and debris from foam air filters. Replace felt or paper filters at least annually or if damaged to maintain engine performance. Consult your owner’s manual.
I hope this overview has helped explain the key factors in chainsaw power and provided useful tips for choosing between gas and battery models. Let me know if you have any other chainsaw-related questions!
