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SigmasTek  |  SKU: BW-7881

Bolens By Textron STH125 Premium Compatible 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 STH125 Lawn Mower

➤ Utilizes Absorbent Glass Mat (AGM) technology for enhanced durability

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

➤ High energy density delivers superior power and long-lasting performance

➤ 1-year warranty with guaranteed compatibility and quality assurance


📦🚀 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 STH125 Lawn Mower Battery (Replacement) - Compatible with Bolens by Textron STH125

Power your mower with confidence using this factory-fresh replacement battery developed for the Bolens by Textron STH125. Offering true compatibility, dependable performance, and rugged reliability, this battery is built to handle the daily demands of lawn care. With AGM construction and valve-regulated, spill-proof design, this high-performance battery provides consistent power delivery and superior energy density for extended mowing cycles.

Key Specifications

  • Brand: Bolens by Textron (replacement)
  • Compatible Model: Bolens by Textron STH125
  • 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

Choose this replacement battery for long-term durability and dependable service. The AGM format is maintenance-free and resists vibration and shock, extending the battery’s useful life in rugged outdoor conditions. As a long-lasting battery, it holds up well to repeated deep-cycle use, delivering steady power for extended mowing sessions and reducing the need for frequent replacements.

As a high-performance battery, it provides an impressive power-to-volume ratio that enables a compact form factor while delivering strong energy output. The valve-regulated, spill-proof housing enhances safety and permits flexible installation positions. U.L. recognition and CE certification confirm adherence to recognized safety and quality standards, while the included 1-year warranty and performance guarantee give you purchase protection.

Common applications include riding mowers, garden tractors, and other small outdoor machines that demand reliable 12 V, 35 AH performance. It’s also a practical option for backup power roles like small UPS units, emergency lighting, or portable tools that need consistent deep-cycle capability.

Ready to upgrade? Purchase the Bolens by Textron STH125 replacement battery today and enjoy fast shipping and long-lasting battery power—keep your mower running at peak performance.


Payment & Security

Payment methods

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