1. Industry Background — Why the Battery Matters

Robot mowers operate in harsh outdoor conditions:

• Continuous vibration from cutting and drive motors.
• Direct sunlight raising enclosure temperatures above 55–60 °C.
• Sudden load spikes when entering dense or wet grass.
• High-frequency charging during mowing season.
• Humidity, morning dew, and moisture exposure.

These stress factors make the battery a critical determinant of cutting performance, runtime, safety, durability,
and warranty cost. LFP (LiFePO₄) is now the preferred chemistry due to superior safety, long cycle life, and
stable high-current discharge behavior — especially compared with traditional lead-acid or general lithium-ion
solutions used in other
micro-mobility power solutions.

2. Key Technical Requirements for Robot Mower Batteries

The following parameters are essential when designing a competitive robot mower battery system:

These requirements are similar to those found in other outdoor equipment, such as

solar lighting power solutions, but the higher dynamics and vibration in robot mowers make robust pack
design even more essential.

3. Common Pain Points for Manufacturers

Without a well-engineered battery system, robot mower brands often face:

• Overheating during summer operation.
• Insufficient peak current causing blade stalling in dense grass.
• Rapid capacity decay within one season of heavy use.
• Inaccurate SOC estimation leading to sudden shutdown in the middle of a job.
• Mechanical fitment and cable-routing conflicts inside compact chassis.
• Failure under humidity or moisture due to weak sealing.
• Poor supplier consistency increasing failure rate and warranty cost.

PKNERGY’s custom battery engineering is designed to eliminate these issues from the initial design stage, rather
than trying to fix them in the field.

4. PKNERGY’s Custom LFP Battery Solutions

PKNERGY provides end-to-end custom LFP battery packs tailored to robot mower platforms:

High-power 10S–15S LFP Packs

• Cylindrical 21700/32700 cells for excellent vibration resistance.
• Prismatic LFP cells for compact, high-capacity layouts.
• Stable 30–60 A peak output and 10–20 A continuous discharge.

Outdoor-grade Durability

• Supports up to 60 °C sunlight exposure inside the mower housing.
• Moisture-resistant construction with conformal coatings and sealed casings.

Smart BMS

• CAN/UART/RS485 communication for integration with mower controllers and cloud platforms.
• Accurate SOC and SOH estimation for reliable “remaining runtime” display.
• Full protection: OCP, OVP, OTP, SCP and cell-level balancing.

Rugged Mechanical Structure

• Anti-vibration holders and reinforced welding.
• IPX5–IPX7 waterproof housing and gasket designs.
• Optimized harness layout and connectors to simplify assembly.

Flexible Customization

• Voltage, capacity and discharge rate customized for each mower model.
• XT60 / XT90 / Anderson or fully custom connectors.
• Custom pack shape, housing, and harness routing to fit your chassis.

Full Reliability Testing

• UN38.3 and IEC62133 safety tests.
• High-temperature soak, vibration and drop tests.
• Cycle life verification under real mowing profiles.

For brands planning a full outdoor robotics portfolio, PKNERGY also supports

AGV power solutions and other
lithium battery customization, enabling unified supply across multiple platforms.

5. Application Examples

• 15S high-capacity long-runtime systems for large gardens and professional users.
• 12S cylindrical vibration-resistant packs for rugged residential mowers.
• Moisture-resistant designs for humid regions and coastal climates.
• Fast-charging packs integrated with docking stations for high-utilization fleets.
• High-current solutions for powerful brushless blade motors and multi-zone mowing.

Whatever your robot mower positioning—entry-level consumer, professional landscaping or smart city maintenance—
PKNERGY can match your torque, runtime and cost targets with the right LFP architecture.

FAQ – LFP Batteries for Robot Lawn Mowers