Oregon PowerNow

The OREGON® PowerNow™ 40V MAX* Cordless Chainsaw is designed with all the battery muscle you need for real work. Pull the trigger and you have an instant start and long run time. And, when you need to sharpen the saw chain, just pull the lever to activate the built-in PowerSharp® saw chain sharpening system.


Chainsaw Model CS250S
   with Standard Battery Pack
with Endurance Battery Pack
Tool Weight with Guide Bar, Chain, and Battery 11.0 lb (5.0 kg) 12.0 lb (5.4kg)
Guide Bar Length 14 inch (35cm) 14 inch (35cm)
Chain Type PowerSharp® PowerSharp®
Chain Pitch / Gauge

3/8" low profile / .050" gauge

3/8" low profile / .050" gauge
No Load Chain Speed

6400 RPM

6400 RPM

Oil Lubrication System


Oil Tank Volume

5.9 oz (175ml)

5.9 oz (175ml)

Battery Pack Model

B500S (Standard Model)

B400E (Endurance Model)
Battery Type

Lithium Ion

Lithium Ion

Battery Nominal Capacity 1.25 Ah / 47 Wh 2.4 Ah / 89 Wh
Nominal Voltage 37 V 37 V
Battery Pack Weight

1.7 lb (0.8 kg)

2.7 lb (1.2 kg)

Charger Model



Charge Time (approx.)

60 Minutes

120 Minutes

Warranty 2 YR** 2 YR**