Stihl / Battery / Professional

Stihl MSA 300 C-O

Name: Stihl MSA 300 C-O
Brand: Stihl
Price: 860 USD
Availability: InStock

40cc class (by bar)

36V

Voltage

9.4 Ah pack

16 in

Bar

cuts to about 14 in

14.1 lb

Weight

with AP 500 S battery, no bar/chain (9.9 lb bare tool)

~$860

approx., tool only with 16" bar and chain; AP battery and charger extra

See it at Stihl

Price and availability on Stihl's site may differ.

Stihl's flagship battery saw and the first one working crews describe as an honest gas replacement — Stihl rates it at 2.5 kW, comparable to its 50cc MS 271, and it runs a full-house .325 pro chain rather than a homeowner profile. It has real professional touches: three power modes with an LED display, an oil-flow sensor that warns you before you cook a bar, magnesium housing, and an IPX4 weather rating. The sticker shock is the story in every owner thread: $860 for the bare saw, and the 337 Wh AP 500 S battery plus AL 500 charger push a working kit to about $1,555 — gas MS 261 money with change left over. Owners also note the roughly 44-minute max runtime means commercial crews need two or three $400+ batteries to work a full day, and at 14 lbs with pack it's no lighter than the gas saw it replaces. For noise-restricted municipal work and emission-free fleets it has no real Stihl alternative; for everyone else the math is hard.

Best for: Professional crews and municipalities that need gas-level cutting in noise- or emission-restricted settings and can absorb the battery-system cost.

Specifications

Engine class: 40cc class (placed by shipped bar length)
Voltage: 36 V
Kit battery: 9.4 Ah
Rated power: 2.5 kW
Bar length: 16 in
Bar range: 16-20 in
Single-pass cut: about 14 in (bar minus 2)
Chain: .325" pitch / .050" gauge (RS3 Pro)
Weight: 14.1 lb, with AP 500 S battery, no bar/chain (9.9 lb bare tool)
Power type: Battery
Use case: Professional
Warranty: 5-year consumer / 3-year professional (Stihl AP battery policy from Jan 1, 2026)
Model: MSA 300 C-O

Manufacturer figures except the engine class and single-pass cut, which are derived here. What each spec means

Stihl's most powerful battery saw — 2.5 kW
Oil-flow sensor and 3 power modes
True pro build: magnesium housing, IPX4

What owners like

2.5 kW output Stihl itself compares to the gas MS 271 — real 50cc-class cutting
Oil-flow sensor catches dry-bar situations before they ruin a bar and chain
Three selectable power modes stretch runtime for limbing versus felling
Up to 44 minutes of cutting on the 9.4Ah AP 500 S pack
IPX4-rated, magnesium-housed, and built for daily commercial abuse
Runs .325 RS3 Pro chain — not a low-profile homeowner chain

Common complaints

A working kit (saw + AP 500 S + AL 500) runs about $1,555 — more than a gas MS 261 setup
Full-day commercial use realistically requires multiple $400+ batteries
14.1 lbs with pack — no weight savings over the gas saws it replaces
2-year battery-product warranty is short given the system investment
Dealer-only; no retailer review aggregate exists to sanity-check long-term reliability

Questions owners ask

Is the MSA 300 genuinely gas-equivalent?

Stihl rates it at 2.5 kW and compares it directly to the 50cc gas MS 271, and working crews describe it as the first Stihl battery saw that's an honest gas replacement. It backs that up with a full-house .325 RS3 Pro chain rather than a low-profile homeowner loop — real 50cc-class cutting, minus the noise and exhaust.

Can it last a full work day?

Not on one pack. You get up to 44 minutes of cutting from the 9.4Ah AP 500 S, so full-day commercial use realistically means rotating multiple $400+ batteries. The three power modes help — running the lower modes for limbing stretches runtime meaningfully and saves the full-power mode for felling cuts.

What does the oil-flow sensor do?

It monitors whether bar oil is actually flowing and warns you before a dry bar ruins a chain and bar — a failure mode that usually goes unnoticed on other saws until the damage is done. It's one of the genuinely professional touches, along with the magnesium housing and IPX4 weather rating.

Is it lighter than the gas saw it replaces?

No — at 14.1 pounds with the pack, it weighs about the same as the 50cc gas saws it substitutes for, so the case for it is noise, zero exhaust, instant starts, and no fuel handling rather than weight savings. Crews in noise- or emission-restricted settings are the buyers it makes sense for.

What's the warranty on such an expensive system?

Two years, consumer and commercial alike, under Stihl's battery-product warranty — short given a working kit runs about $1,555. Echo covers consumer battery saws for five years by comparison. The counterweight is Stihl's dealer network, which handles service in ways box-store brands can't.