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SigmasTek  |  SKU: BW-8755

Merits Pioneer 4 S145 U1 High-Performance Replacement Battery Set 49.45 lb

10% off
New arrival
Sale price $245.99 USD Regular price $272.99
Shipping calculated at checkout.
Includes 2 high-performance 12V 35AH batteries with NB terminals
Maintenance-free and spill-proof design with AGM technology
Guaranteed compatibility with original Merits Pioneer 4 S145 U1 batteries
Wide operating temperature range for reliable wheelchair power
1-year warranty ensures quality, durability, and customer satisfaction
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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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Volts & Amps

12 Volts | 35 AH

Terminal Type

Nut & Bolt

Replacement Battery for Merits Pioneer 4 S145 U1 Wheelchair

Get back on the move with confidence using this set of replacement batteries for the Merits Pioneer 4 S145 U1 wheelchair. This pair of 12V 35AH batteries with NB (Nut & Bolt) terminals offers maintenance-free AGM construction and sealed SLA chemistry for reliable, long-lasting performance. Built to meet or exceed original manufacturer specifications, this high-performance battery set is an excellent choice for daily mobility and backup power needs.

Key Specifications

  • Package contains: 2 batteries
  • Voltage: 12 Volts
  • Capacity: 35 AH (Amp-hours)
  • Terminal: NB (Nut & Bolt)
  • Chemistry: SLA (Sealed Lead Acid)
  • Technology: AGM (Absorbent Glass Mat)
  • Weight: 49.4 Lbs (as listed)
  • Dimensions (per battery): Length 7.72 in, Width 5.14 in, Height 6.14 in
  • Maintenance-free and spill proof
  • Guaranteed compatibility with original batteries
  • Warranty: 1-year Warranty
  • Brand indication: SigmasTek (as listed)
  • Shipping Methods: UPS Ground and USPS
  • Shipping speed: We ship in 1 business day for all in-stock items
  • Terminal hardware style: Nut & Bolt

Benefits

  • Durability: The sealed, maintenance-free design using AGM technology prevents leaks and minimizes upkeep for worry-free use.
  • Long life: With a high discharge design and tolerance for a wide operating temperature range, these batteries provide a long-lasting battery option for regular mobility demands.
  • High performance: Designed to match or exceed OEM performance, these batteries supply steady power and reliable output so your wheelchair maintains consistent operation.
  • Applications: Optimized for the Merits Pioneer 4 S145 U1 wheelchair; suitable for compatible mobility devices and can be used for small UPS backups, emergency power scenarios, and certain power tools where appropriate.
  • Installation ease: Install in the original configuration and reuse your existing cables; NB terminals (Nut & Bolt) ensure a secure connection.
  • Support and delivery: Includes a 1-year warranty and expedited shipping options so you can restore mobility fast and with confidence.

Be sure to check your existing battery dimensions before ordering. If you need only one replacement battery, visit Wheelchair Batteries by V and AH to purchase a single unit. Ready to upgrade to a reliable, high-performance replacement battery for your Merits Pioneer 4 S145 U1? Add this pair to your cart and regain dependable power today.

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 4
  • Manufacturer: SigmasTek
  • Product Type: Medical Equipment Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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