Encore 42B 350Z Lawn Mower High Performance 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.
Encore 42B 350Z Lawn Mower High Performance 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
Encore 42B 350Z Lawn Mower Battery (Replacement) — Compatible with Encore 42B 350Z
Ensure dependable power for your Encore 42B 350Z Lawn Mower with a brand new replacement battery engineered for deep-cycle performance and safe, maintenance-free operation. This replacement battery is fully compatible with the Encore 42B 350Z and combines AGM technology with valve-regulated, spill-proof construction to deliver a high-performance, long-lasting battery solution you can trust.
Key Specifications
- Compatible Model: Encore 42B 350Z Lawn Mower
- Required Battery Model: SP12-35 NB
- Voltage: 12 Volts
- Capacity: 35 AH
- Number Required: 1 battery
- Terminal Type: Nut & Bolt
- Technology: Absorbent Glass Mat (AGM)
- Designed For: Deep Cycle Usage
- Construction: Valve Regulated, Spill Proof
- Energy Characteristic: 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
- Brand: Encore (replacement)
Benefits
This replacement battery offers exceptional durability and consistent life-cycle performance thanks to its AGM manufacturing and robust internal design. It resists vibration and shock and minimizes maintenance compared with traditional flooded batteries. The valve-regulated, spill-proof construction adds safety and convenience during installation and everyday use.
As a high-performance battery, it maintains reliable voltage under load so the Encore 42B 350Z starts easily and runs efficiently. The impressive power/volume ratio provides enhanced energy density in a compact package, perfect for tight battery compartments. Common applications include lawn mowers, UPS backup systems, emergency power sources, and power tools where dependable deep-cycle performance is required. For owners seeking a long-lasting battery replacement, this option restores original runtime and reliability.
Installation uses your existing cables and hardware—this Encore 42B 350Z requires one SP12-35 NB (12 V 35 AH) battery. Backed by U.L. recognition, CE certification, performance assurance, and a one-year warranty, it delivers safe, reliable operation and real value.
Ready to upgrade? Order this replacement Encore 42B 350Z high-performance, long-lasting battery now to secure dependable power and quick shipping. Purchase today and get back to peak performance.
Technical Specifications
Product Highlights
- Brand Replacement : Encore 42B 350Z
- 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.




