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SigmasTek  |  SKU: BW-7882

Bolens By Textron STG125 High Performance Lawn Mower Replacement Battery

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

➤ Factory fresh replacement battery for Bolens by Textron STG125 Lawn Mower

➤ 100% compatible with original STG125 model, uses existing cables and hardware

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

➤ Valve-regulated, spill-proof design ensures safe, maintenance-free use

➤ U.L. recognized, CE certified, and backed by a 1-year warranty


📦🚀 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

Bolens by Textron STG125 Lawn Mower Battery (Replacement) - Compatible with Bolens by Textron STG125

Replace your old battery with this brand-new, factory-fresh replacement battery built specifically for the Bolens by Textron STG125. Engineered for perfect compatibility and reliable performance, this battery is ideal for both routine lawn maintenance and heavier mowing tasks. Utilizing AGM technology and a valve-regulated, spill-proof design, this high-performance battery delivers consistent power, superior safety, and excellent energy density in a compact package.

Key Specifications

  • Brand: Bolens by Textron (replacement)
  • Compatible Model: Bolens by Textron STG125
  • Required Battery Model: SP12-35 NB
  • Voltage: 12 V
  • Ampere Hours (AH): 35 AH
  • Terminal Type: Nut & Bolt
  • Battery Technology: Absorbent Glass Mat (AGM)
  • Usage Type: Designed for Deep Cycle Usage
  • Construction: Valve Regulated, Spill Proof
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Performance: Performance Guaranteed
  • Warranty: 1 Year Warranty
  • Quantity Required: 1 battery

Benefits

This replacement battery offers durable construction and dependable long-term performance. AGM cells provide maintenance-free operation and enhanced resistance to vibration—ideal for outdoor power equipment exposed to knocks and bumps. As a long-lasting battery, it performs reliably under repeated deep-cycle demands, reducing downtime and minimizing the need for frequent replacements.

Designed as a high-performance battery, it balances compact size with excellent energy density, delivering reliable power for extended mowing sessions. The valve-regulated, spill-proof design improves safety and allows for flexible mounting. U.L. recognition and CE certification ensure manufacturing quality and compliance, and the included 1-year warranty demonstrates confidence in the product’s reliability.

Typical applications include lawn mowers, garden tractors, and other outdoor equipment requiring stable 12 V, 35 AH power. Additionally, this battery can serve in backup or auxiliary roles such as small UPS systems, emergency power, and portable tool power where consistent deep-cycle performance is needed.

Don’t wait—order the Bolens by Textron STG125 replacement battery today to restore dependable, long-lasting battery power to your mower. Fast shipping and a performance guarantee make purchasing easy and risk-free.


Payment & Security

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