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SigmasTek  |  SKU: BW-9560

Merits Pioneer 3 S131 Deluxe U1 High Performance Wheelchair Replacement Battery

Sale price $183.99 USD Regular price $280.53
Shipping calculated at checkout.

➤ Factory fresh replacement batteries for Merits Pioneer 3 S131 Deluxe U1 wheelchair

➤ 100% compatible with original Merits Pioneer 3 S131 Deluxe U1 unit

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

➤ Valve regulated, spill-proof design ensures safety and reliability

➤ Includes 1-year warranty for guaranteed long-lasting power


📦🚀 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 Merits Pioneer 3 S131 Deluxe U1 Battery — Compatible with Merits Pioneer 3 S131 Deluxe U1

Ensure your Merits Pioneer 3 S131 Deluxe U1 operates at peak performance with this factory fresh replacement battery. Designed for deep cycle applications and engineered with AGM technology, this replacement Merits Pioneer 3 S131 Deluxe U1 battery offers reliable power and superior energy density for mobility devices. If you need a high-performance battery that is fully compatible and built to last, this long-lasting battery is an ideal choice for everyday mobility use.

Key Specifications

  • Model Compatibility: Merits Pioneer 3 S131 Deluxe U1
  • Battery Type: Absorbent Glass Mat (AGM) Technology
  • Usage: Designed For Deep Cycle Usage
  • Construction: Valve Regulated Spill Proof Construction
  • Energy: Power/Volume Ratio Yielding Unrivaled Energy Density
  • Safety Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Voltage: 12 Volts
  • Capacity: 35 AH (SP12-35 NB) — requires 2 batteries per unit
  • Terminal Type: Nut & Bolt (SP12-35 NB)
  • Warranty: 1 Year Warranty
  • Brand: SigmasTek

Benefits

  • Durability: AGM and valve-regulated design protect against leaks and vibration, extending the service life in mobility and medical environments.
  • Long Life: Deep-cycle engineering provides the extended runtime and recharge cycle capability expected from a long-lasting battery for wheelchairs and scooters.
  • High Performance: High energy density delivers steady power under load, ensuring your power chair sustains speed and torque when navigating daily activities.
  • Safety & Certification: U.L. recognized and CE certified to meet recognized safety standards in mobility applications.
  • Typical Applications: Ideal for electric wheelchairs, power chairs, mobility chairs, mobility scooters — also suitable for UPS backups, emergency power reserves, and portable tools that require dependable 12V deep-cycle power.
  • Easy Swap: Direct fit for the Merits Pioneer 3 S131 Deluxe U1 using existing hardware and cables for quick replacement.

Buy this high-performance replacement battery for your Merits Pioneer 3 S131 Deluxe U1 today and restore the reliable mobility you depend on. Order now to receive a long-lasting battery solution backed by a 1-year warranty and fast fulfillment.


Payment & Security

Payment methods

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