Toro 21-42 Long Life Lawn Mower Replacement Battery 24.72 lb
— Ready to ship immediately
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.
Toro 21-42 Long Life Lawn Mower Replacement Battery is backordered and will ship as soon as it is back in stock.
Let customers speak for us
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
✉ sales@batteryweb.com
Battery Care Tips
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
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
⚠️ 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
Toro 21-42 Lawn Mower Replacement Battery — Compatible with Toro 21-42
Keep your Toro 21-42 Lawn Mower running at peak performance with this reliable replacement battery. The SP12-35 NB (12 V 35 AH) is a factory-fresh, high-performance battery engineered for full compatibility with Toro 21-42 models. It combines deep-cycle capability, AGM safety features, and a compact, high energy-density design to deliver the long-lasting battery power your mower needs.
Key Specifications
- Model Compatibility: Toro 21-42 Lawn Mower
- Part Number: SP12-35 NB
- Voltage: 12 Volts
- Capacity: 35 AH (Amp-Hours)
- Terminal Type: Nut & Bolt
- Technology: Absorbent Glass Mat (AGM) Technology
- Usage Type: Designed for Deep Cycle Usage
- Construction: Valve Regulated Spill Proof Construction
- Power Characteristics: 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
- Quantity Required: 1 battery required for Toro 21-42
- Shipping: Orders for in-stock items are typically shipped within 24 hours
Benefits
This replacement battery offers exceptional durability through AGM and valve-regulated construction, ensuring leak-free, maintenance-free operation and superior resilience to vibration and temperature changes commonly encountered during mowing. Its deep-cycle design increases usable life over repeated cycles, making it a dependable long-lasting battery for frequent use.
As a high-performance battery, the SP12-35 NB provides the starting and running power necessary for demanding mowing tasks while also being adaptable for other roles such as small UPS backups, emergency power supply, or powering outdoor tools. The high energy density means you get more runtime in a compact package, which is ideal for tight battery compartments and mobile equipment.
Backed by U.L. recognition, CE certification, and a 1 year warranty, this product ships brand new with performance guaranteed. For installation, reuse your original cables and hardware to ensure the proper and secure connection of the Nut & Bolt terminals.
Upgrade to this replacement battery for your Toro 21-42 today to enjoy dependable, long-lasting power and fast shipping. Purchase now and restore reliable performance to your mower.
Technical Specifications
Product Highlights
- Brand Replacement : Toro 21-42 Lawn
- Manufacturer: SigmasTek
- Product Type: Home Power Backup
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.




