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SigmasTek  |  SKU: BW-8525

12V 40AH Wheelchair High Performance Replacement Battery 29.14 lb

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New arrival
Sale price $150.99 USD Regular price $171.99
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High performance 12V 40AH capacity for reliable wheelchair power
Maintenance-free, spill-proof AGM technology for safety and convenience
Wide operating temperature range ensures consistent performance
Guaranteed compatibility with original battery and NB terminal type
1-year warranty included for peace of mind and durability
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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

12V 40AH Wheelchair Replacement Battery — Single Unit (12V 40AH, NB)

This 12V 40AH replacement battery is crafted to deliver compatibility, dependable performance, and long-term reliability for a range of mobility devices and equipment. As a high-performance battery, it features a high discharge design, a wide operating temperature window, and a long expected service life. The battery meets or exceeds original manufacturer specifications to ensure quality and durable operation for your device.

Key Specifications

  • Package contains: 1 battery
  • Volts: 12
  • Amps: 40
  • Weight: 29.07 Lbs
  • Length: 7.76
  • Width: 6.5
  • Height: 6.69
  • Terminal: NB (Nut & Bolt)
  • Chemistry: SLA (Sealed Lead Acid)
  • Technology: AGM (Absorbent Glass Mat)
  • Maintenance-free
  • Spill Proof
  • Guaranteed compatibility with original battery
  • Warranty: 1-year Warranty
  • Shipping Methods: UPS Ground and USPS
  • Shipping time: We ship in 1 business day for all in-stock items
  • Additional: Shipping & Return Policies apply
  • Brand indicator: *SigmasTek*

Benefits

This 12V 40AH replacement battery is a long-lasting battery option engineered for resilience and consistent output. The AGM SLA construction delivers maintenance-free, spill-proof performance that reduces the need for routine service while protecting both the device and user. As a high-performance battery, it supports higher discharge rates—ensuring reliable power delivery for wheelchairs and other energy-demanding devices.

Expect dependable operation across a variety of conditions due to the wide operating temperature range and sturdy internal design that preserves cell integrity over many cycles. Typical uses extend beyond mobility devices: this battery is an excellent choice for UPS backup systems, emergency power reserves, medical equipment, and portable tools that require 12V 40AH capacity. The single-unit packaging makes it easy to replace one battery at a time when needed.

Installation should follow the original configuration and reuse the existing cables and hardware. We recommend checking your existing battery dimensions prior to ordering, as manufacturers can change specifications without notice. With a one-year warranty, fast same-business-day shipping on in-stock items, and clear shipping and return policies, this battery gives you confidence in both performance and support.

Need a dependable 12V 40AH replacement battery? Add this long-lasting, high-performance battery to your cart now and secure reliable power for your device today.

Technical Specifications

Voltage12 Volts
Amp Hours40 Ah
Terminal TypeNut & Bolt
Length (in.)7.76
Width (in.)6.5
Height (in.)6.69
Weight (lb.)29.11

Product Highlights

  • Brand Replacement : 12V 40AH Wheelchair
  • Manufacturer: SigmasTek
  • Product Type: Medical Equipment Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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