Welcome to our store. Your trusted source for batteries and power solutions. Learn more

For support or quotes: sales@batteryweb.com

WELCOME5
SigmasTek  |  SKU: BW-7364

Lawn Boy 9303E Lawn Mower High Performance Replacement Battery 24.72 lb

17% off
New arrival
Sale price $122.99 USD Regular price $147.99
Shipping calculated at checkout.
Factory fresh and brand new for reliable performance
100% compatible with Lawn Boy 9303E Lawn Mower models
Absorbent Glass Mat (AGM) technology for enhanced durability
Valve regulated, spill-proof design for safe operation
Includes 1-year warranty for peace of mind and guaranteed performance
In stock

— Ready to ship immediately

Free shipping

Visa Mastercard American Express PayPal Apple Pay Google Pay Shop Pay Discover Klarna Afterpay Stripe

Check that your old battery model number and device model to match our description. This makes sure they work together.


We ship your order same day if you buy it before 4 PM EST.

Send Your Battery Photo

Expert Technician Help

Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.

POST YOUR BATTERY IMAGE
Product & Solutions Expert

Product & Solutions Expert

✉ sales@batteryweb.com

🔹 10+ Years Battery Experience 🔹 Fast & Accurate Identification

Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 35 AH

Terminal Type

Nut & Bolt

Lawn Boy 9303E Replacement Battery — Compatible with Lawn Boy 9303E

Restore reliable power to your Lawn Boy 9303E with a factory-fresh replacement battery designed for dependable performance and long-term reliability. This replacement battery is fully compatible with the Lawn Boy 9303E and offers the deep-cycle capacity and robust construction needed for consistent starts and extended mowing sessions. If you’re looking for a high-performance battery that’s also a long-lasting battery solution, this model delivers both.

Key Specifications

  • Model / Part: SP12-35 NB
  • Compatible With: Lawn Boy 9303E Lawn Mower
  • Quantity Required: 1 battery
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Terminal Type: Nut & Bolt
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Usage: Designed For Deep Cycle Usage
  • Construction: Valve Regulated Spill Proof Construction
  • Energy Density: Power/Volume Ratio Yielding Unrivaled Energy Density
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Performance: Performance Guaranteed
  • Warranty: 1 Year Warranty

Benefits

  • Durability: AGM construction and valve-regulated design ensure a rugged, spill-proof battery that resists vibration and delivers dependable service in outdoor conditions.
  • Long Life: Intended for deep-cycle use to maximize service life and deliver the consistent charge/discharge performance needed for frequent mower use — a true long-lasting battery option.
  • High Performance: Engineered with an excellent power-to-volume ratio to provide reliable cranking and stable voltage under load, qualifying it as a high-performance battery for your mower.
  • Safety & Standards: U.L. Recognized and CE Certified to provide certified reliability and safer operation in day-to-day use.
  • Applications: Ideal for Lawn Boy 9303E lawn mowers, small engine equipment, and other applications that require a 12V 35AH deep-cycle battery with nut and bolt terminals. Also useful as a backup power source for small systems.
  • Convenience: Ships quickly for in-stock orders and arrives ready to install using your existing cables and hardware for a seamless replacement.
  • Warranty & Support: Performance guaranteed and backed by a 1 year warranty for peace of mind and dependable after-sale support.

Don’t let a weak battery slow your Lawn Boy 9303E. Purchase this replacement battery now to enjoy dependable starts, consistent power, and the long-lasting battery performance you need. Order today and get back to work.

Technical Specifications

Voltage12 Volts
Amp Hours35 AH
Terminal TypeNut & Bolt
Length (in.)7.72
Width (in.)5.14
Height (in.)6.22
Weight (lb.)24.7

Product Highlights

  • Brand Replacement : Lawn Boy 9303E
  • Manufacturer: SigmasTek
  • Product Type: Home Power Backup
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.