The Oso Battery
Electric power that keeps up with your workday.
One battery runs your Oso mower for over two hours. Bring a spare and you’re covered for a full commercial day — no gas stations, no downtime, no surprises.
The Benefits
Charging that fits your schedule.
Plug in at the end of the day and batteries go from empty to full in approximately 7 hours — with consistent output across the full charge cycle. To extend battery life, we recommend a 10-hour charge window — a 7pm plug-in and a 5am start.
A battery built to last seasons, not months.
Lithium iron phosphate chemistry is chosen specifically for longevity, with a housing built for outdoor commercial conditions. The Oso battery retains 85% of its original capacity after 2,000 charge cycles — five or more years of daily commercial use before performance meaningfully degrades, with a usable life exceeding 5,000 cycles.
Works with your Oso equipment.
The 35Ah LiFePO4 battery powers both the Oso walk-behind and robotic mower. Batteries are interchangeable between platforms — one battery type across your whole fleet.
The Details
Oso 2-Hour Battery Specifications
| Chemistry | Lithium Iron Phosphate (LiFePO4) |
| Voltage | 52V nominal |
| Capacity | 35Ah |
| Runtime Range for Mowers | 2+ hours per charge |
| Runtime Range for Power Unit | Up to 5 hours per charge (based on application) |
| Housing | Nickel-coated steel, IP65 Water Resistance |
| Lifecycle | 85% capacity after 2,000 cycles |
| Usable life | 5,000+ cycles |
| Weight | 30+ lbs. |
| Compatibility | Oso Walk-Behind Mower, Oso Robotic Mower, Oso Power Unit |
| Charging power requirements | 120V grounded outlet, 15A breaker minimum |
All batteries include a charger. No separate purchase needed.
7-10 hours
Charge time from depleted to full.
How many batteries do you need?
The right number depends on your average daily cut time — how long the mower usually runs during a normal work day.
Under 2 hours cut time
Light routes
One battery per mower. Charge overnight and you’re ready every morning. Works for residential crews and shorter commercial properties.
2 to 4 hours cut time
Standard routes
Two batteries per mower. Run the first battery in the morning, swap at midday, charge both at the end of the day. No interruptions to the route.
4+ hours cut time
Heavy routes
Two to three batteries per mower. Swap as needed throughout the day and keep every mower running at full capacity.
The Warranty
What we stand behind.
Two-Year Limited Warranty
Every Oso product is covered by a two-year limited warranty against defects in materials and workmanship. If something goes wrong, we will repair or replace it. Warranty service must be performed by an authorized Oso servicing dealer. Full details are available at our support center.
Extended coverage for commercial operations
For operations where equipment downtime has real costs, we offer extended warranty and servicing packages — including loaner equipment during repairs and complete replacement options. Reach out to your sales rep to find out what’s available for your operation.
Buyback Program
If the equipment isn’t the right fit for your operation, we’ll buy it back for a portion of the original price based on condition and use. Ask your sales rep how the program works.
Before operating any Oso product, read the full Operator’s Manual — available in the support center.
Power your whole day.
Talk to our team about battery quantities, charging setup, and what works best for your operation.