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SigmasTek  |  SKU: BW-7421

John Deere SST 18 High Performance Lawn Mower Replacement Battery

Sale price $102.50 USD Regular price $135.64
Shipping calculated at checkout.

➤ Factory fresh John Deere SST 18 replacement battery for reliable performance

➤ 100% compatible with John Deere SST 18 Lawn Mower models

➤ Uses Absorbent Glass Mat (AGM) technology for deep cycle durability

➤ Valve regulated and spill-proof design for safe handling

➤ Comes with a 1-year warranty and guaranteed high performance


📦🚀 FAST SHIPPING: Usually ships same day if ordered before 2 PM EST

⚠️ Quick Reminder

🔹 Please ensure the original battery model number is listed in our product description and that your device model number matches for compatibility.
🔹 We only supply the batteries shown in the images. Device images are provided for reference only.

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Battery Care Guide

Battery Usage and Maintenance Guidelines 🔋

Please read the following instructions carefully before using your new battery. Proper adherence will help ensure optimal performance and extended service life.

1. Cordless Phones, PDAs, and Power Tools (NiMH, NiCd, Lithium-Ion) 📱

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Operate the device until the battery reaches approximately 20% capacity.
  • Avoid premature recharging.
  • Do not allow the battery to fully discharge during the initial cycles.

Post-Conditioning

  • Recharge the battery only when necessary.
  • These batteries are capable of approximately 500 charge cycles:
  • Once daily → ~500 days
    Twice daily → ~250 days
    Note: Even a partial recharge is considered a full cycle.

2. Sealed Lead Acid (SLA) Batteries 💡

  • No conditioning required.
  • Maintain the battery in a fully charged state; avoid complete discharge.
  • Capable of 300–400 charge cycles.
  • Expected service life: 2–3 years, depending on usage conditions.

3. Laptop Batteries (Lithium-Ion) 💻

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Charge fully, then discharge to approximately 20% capacity.
  • Avoid complete discharge, as some devices may not detect a fully drained battery.

Post-Conditioning

  • Minimize frequent plugging and unplugging.
  • Allow the battery to discharge moderately at least once per month to maintain optimal performance.
  • Occasional cycling is recommended to sustain battery health.

Professional Recommendation

Adhering to these guidelines will enhance battery longevity and ensure reliable performance.

For further assistance regarding your battery or order, our customer support team is available to provide guidance.

Delivery and Shipping

Everything You Need to Know About Shipping with BatteryWeb (USA)

We know reliable delivery matters when you need power fast. Here’s how BatteryWeb makes shipping easy across the USA:

🚚 Shipping & Delivery

Most orders ship next business day (some products like sealed lead acid may take a little longer).

Same-day shipping available if you order before 11:59 AM (delivery depends on the carrier).

We ship nationwide using FedEx, UPS, USPS, DHL, and regional ground carriers.

Shipping costs are calculated automatically at checkout based on weight, distance, and carrier.

Transit times shown are estimates only (business days, no weekends/holidays).

🌍 Shipping Restrictions

Lithium batteries cannot be shipped by USPS or air. They must go via FedEx Ground, UPS Ground, or DHL Ground.

PO Box deliveries are only available via USPS.

At this time, we do not ship lithium batteries to Puerto Rico. NiMH, NiCd, and Alkaline can be shipped.

📦 Important Notes

Double-check your shipping address! If an incorrect address is used and the order is returned, re-shipping costs are the buyer’s responsibility.

If a product is temporarily out of stock, we’ll notify you right away with the expected restock date—or issue a refund if you prefer.

💲 Currency & Pricing

All prices are shown in USD.

Orders shipped outside the USA may be subject to local taxes, customs fees, or import duties. These are the buyer’s responsibility.

⚡ At BatteryWeb, we’re committed to getting your batteries delivered quickly, safely, and affordably—so you’ll always have the power you need, when you need it.

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.

🔹 Our products are generic replacement parts and are not affiliated with, endorsed by, or manufactured by the original equipment manufacturers (OEMs).


Volts & Amps

12 Volts | 35 AH

Terminal Type

Nut & Bolt

Replacement John Deere SST 18 Lawn Mower Battery (SP12-35 NB) — Compatible with John Deere SST 18

Built for dependable compatibility and reliable power, this replacement battery is intended for the John Deere SST 18 lawn mower. The SP12-35 NB (12 V 35 AH) battery features Absorbent Glass Mat (AGM) technology and is designed for deep cycle usage to provide consistent, long-term performance. If you require a high-performance battery that is also a long-lasting battery solution for seasonal mowing, outdoor accessories, and occasional backup needs, this unit fits the bill.

Key Specifications

  • Compatible Model: John Deere SST 18
  • Battery Model: SP12-35 NB
  • Voltage: 12 V
  • Capacity: 35 AH (Amp-hours)
  • Terminal Type: Nut & Bolt
  • Battery Technology: Absorbent Glass Mat (AGM)
  • Usage Type: 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
  • Warranty: 1 Year Warranty
  • Quantity Required: 1 battery

Benefits

This replacement battery is engineered for durability and stable performance. AGM construction reduces maintenance and increases resistance to vibration and shock — essential for lawn mower use. The battery’s deep cycle design supports repeated discharge and recharge cycles, contributing to a long-lasting battery life that holds up through frequent yard work. As a high-performance battery, it maintains steady voltage under diverse loads, ensuring reliable starting and sustained power for blades, lights, and attachments.

Safety-conscious features like valve-regulated, spill-proof construction and recognized certifications (U.L. and CE) give you peace of mind in both residential and commercial settings. Typical applications extend beyond the John Deere SST 18 lawn mower to include small UPS tasks, emergency power for low-draw devices, and powering handheld tools or chargers when needed. The factory fresh condition and performance guarantee make this unit an excellent replacement battery option for homeowners who want dependable results.

Installation requires the reuse of your existing cables and hardware, and the Nut & Bolt terminals are compatible with standard mower connections. In-stock orders are typically shipped within 24 hours so you can replace your battery quickly and get back to work with minimal downtime.

Take action now — purchase this replacement, high-performance battery for your John Deere SST 18 and enjoy dependable power backed by a 1 year warranty. Order today for fast shipping and reliable performance.


Payment & Security

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