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SigmasTek  |  SKU: BW-9261

Merits Pioneer 3 S135 High Performance Wheelchair Replacement Battery 58.27 lb

11% off
New arrival
Sale price $289.99 USD Regular price $324.99
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Factory fresh Merits Pioneer 3 S135 batteries for reliable performance
100% compatible with your Merits Pioneer 3 S135 wheelchair model
AGM technology and valve regulated spill-proof design for safety
Designed for deep cycle use ensuring long-lasting power and durability
Includes 1-year warranty and certified for quality and performance
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Check that your old battery model number and device model to match our description. This makes sure they work together.


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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 40 Ah

Terminal Type

Nut & Bolt

Merits Pioneer 3 S135 Replacement Battery - Compatible with Merits Pioneer 3 S135

Keep your Merits Pioneer 3 S135 running smoothly with a trustworthy replacement battery designed specifically for mobility use. These brand new, factory-fresh replacement batteries are fully compatible with the Merits Pioneer 3 S135 and offer dependable deep cycle performance, safety certifications, and maintenance-free convenience.

Key Specifications

  • Model Compatibility: Merits Pioneer 3 S135
  • Required Quantity: 2 batteries (SP12-40 NB)
  • Voltage: 12 Volts
  • Amp-Hours: 40 Ah
  • Terminal Type: Nut & Bolt
  • Battery Technology: Absorbent Glass Mat (AGM)
  • Designed For: Deep cycle usage
  • Construction: Valve regulated, spill proof
  • Energy Density: High power/volume ratio
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand new, factory fresh
  • Performance: Performance guaranteed
  • Brand: SigmasTek
  • Warranty: 1 Year Warranty

Benefits

This replacement battery is built to provide long-term reliability and consistent output. AGM technology ensures a sealed, vibration-resistant, and maintenance-free battery that minimizes the chance of spills and corrosion. As a high-performance battery intended for deep cycle use, it sustains dependable voltage throughout extended operation and charges efficiently for repeated use.

Expect enhanced durability and a long-lasting battery life that supports daily mobility needs. These batteries are ideal for electric wheelchairs, power chairs, mobility chairs, and mobility scooters, offering steady power for outings and indoor use alike. They are also suitable for backup power in UPS systems, emergency power setups, and certain portable tools where dependable deep cycle performance is required.

Backed by UL and CE certifications and a one-year warranty, the SigmasTek SP12-40 NB (12 V 40 AH) units are performance guaranteed and sold brand new. If your Merits Pioneer 3 S135 requires SP12-40 NB batteries, this is a direct-fit replacement—simply reuse your existing cables and hardware to install.

Ready to replace your old batteries with a long-lasting, high-performance replacement battery for your Merits Pioneer 3 S135? Buy now and keep your mobility device powered and ready.

Technical Specifications

Voltage12 Volts
Amp Hours40 Ah
Terminal TypeNut & Bolt
Length (in.)7.76
Width (in.)6.5
Height (in.)6.69
Weight (lb.)58.22

Product Highlights

  • Brand Replacement : Merits Pioneer 3
  • Manufacturer: SigmasTek
  • Product Type: Medical Equipment Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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