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SigmasTek  |  SKU: BW-9512

Merits Pioneer 1 S142 High Performance Wheelchair Replacement Battery 49.45 lb

11% off
New arrival
Sale price $245.99 USD Regular price $275.99
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Factory fresh and brand new for reliable performance
100% compatible with Merits Pioneer 1 S142 wheelchair units
AGM technology for deep cycle usage and long battery life
Valve regulated, spill-proof design for safety and maintenance-free use
Backed by a 1-year warranty and certified for quality and safety
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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

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Brand Replacement

SigmasTek

Volts & Amps

12 Volts | 35 AH

Terminal Type

Nut & Bolt

Replacement Merits Pioneer 1 S142 Battery (SP12-35 NB) - Compatible with Merits Pioneer 1 S142

Upgrade your mobility with this factory-fresh replacement battery engineered for the Merits Pioneer 1 S142. Built for reliability, performance, and deep-cycle endurance, this replacement battery delivers steady, dependable power for your wheelchair or mobility device. If your Pioneer 1 S142 needs two SP12-35 NB (12 V 35 AH) batteries, this high-performance battery option offers the compatibility and build quality you expect, using your existing cables and hardware for quick installation.

Key Specifications

  • Model: 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
  • Energy Profile: Power/Volume Ratio Yielding Unrivaled Energy Density
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Brand: SigmasTek

Benefits

This long-lasting battery is designed for the demands of mobility equipment and daily use. As an AGM deep-cycle design, it resists vibration and supports repeated charging cycles, giving you a high-performance battery that sustains voltage under load for smoother, more reliable operation. Durability is built into the valve-regulated, spill-proof construction to minimize maintenance and improve safety. The superior power/volume ratio yields outstanding energy density, so you get more run time without added bulk.

Typical applications include electric wheelchairs, power chairs, mobility chairs, and mobility scooters—making it the ideal replacement battery for the Merits Pioneer 1 S142. Beyond mobility devices, its resilient deep-cycle characteristics also make it suitable for light emergency power roles, backup systems (UPS), and portable tool battery banks where steady 12 V output and dependable amp-hour capacity are required. Whether you need continuous, long-running power or robust performance for frequent short trips, this high-performance battery delivers.

Installation is straightforward: the Merits Pioneer 1 S142 requires two SP12-35 NB batteries and you should reuse your existing cables and hardware to complete the connection. With U.L. recognition and CE certification, factory-fresh quality, and a 1 year warranty, this replacement battery provides peace of mind and proven performance.

Buy your Merits Pioneer 1 S142 replacement battery today and experience a long-lasting battery solution at a competitive price — order now to get reliable power back under your control.

Technical Specifications

Voltage12 Volts
Amp Hours35 AH
Terminal TypeNut & Bolt
Length (in.)7.72
Width (in.)5.14
Height (in.)6.22
Weight (lb.)49.4

Product Highlights

  • Brand Replacement : Merits Pioneer 1
  • Manufacturer: SigmasTek
  • Product Type: Medical Equipment Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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