For questions, quotes, or help finding the right battery, feel free to email us at sales@batteryweb.com

New collections added! Learn more

🎉 First Order Special 🎉

First-time shoppers get 5% OFF on batteries & accessories!

WELCOME5
SigmasTek  |  SKU: BW-7742

Encore FC52 Lawn Mower Premium Replacement Battery

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

➤ Factory fresh replacement battery for Encore FC52 Lawn Mower

➤ High-quality AGM technology for deep cycle performance

➤ Valve regulated, spill-proof design for safety and durability

➤ 100% compatible with original Encore FC52 battery (SP12-35 NB)

➤ Backed by 1-year warranty and certified quality standards


📦🚀 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.

📸 Send Your Battery Photo / Unsure? Expert 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 IMAGE

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

Encore FC52 Lawn Mower Battery (Replacement) - SP12-35 NB (12V 35AH)

Get back to mowing with confidence by installing this factory-new replacement battery for the Encore FC52. Precision-built for the Encore FC52 Lawn Mower, this replacement battery provides reliable deep-cycle power and consistent performance. With AGM technology and valve-regulated, spill-proof construction, this high-performance battery delivers the dependable, long-lasting battery life your equipment requires.

Key Specifications

  • Compatibility: Encore FC52 Lawn Mower
  • Required Quantity: 1 battery
  • Model Number: SP12-35 NB
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Terminal Type: Nut & Bolt
  • Battery Technology: Absorbent Glass Mat (AGM)
  • Designed For: Deep Cycle Usage
  • Construction: Valve Regulated, Spill Proof
  • Power/Volume: Unrivaled Energy Density (high power-to-volume ratio)
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Connection Note: Must use existing cables and hardware from original configuration
  • Performance: Performance Guaranteed
  • Shipping: In-stock orders typically ship within 24 hours

Benefits

Expect superior durability and stable output with this replacement battery. AGM construction offers enhanced resistance to vibration and environmental stresses, while the deep-cycle design is optimized for repetitive discharge and recharge cycles—key to maintaining long service intervals and reliable runtime on the job.

As a high-performance battery, it delivers steady power and efficient recharge characteristics to keep your mower operating at peak performance. The valve-regulated, spill-proof case improves safety and reduces maintenance demands, and the nut-and-bolt terminal configuration ensures a solid connection when using your original cables and hardware.

This long-lasting battery also performs well in common secondary applications such as UPS backup systems, emergency power supply setups, and power tools where compact, reliable 12V 35AH capacity is required. Its excellent power-to-volume ratio allows for greater energy storage in a compact form factor.

Replace your Encore FC52 battery now and enjoy reliable, long-lasting power backed by a 1-year warranty and fast shipping. Buy today to secure a high-performance, replacement battery that gets the job done.


Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.