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SigmasTek  |  SKU: BW-8630

Lark Of America Lark 4 Plus High Performance Replacement Battery Set 49.45 lb

15% off
New arrival
Sale price $245.99 USD Regular price $290.99
Shipping calculated at checkout.
Includes 2 high-performance 12V 35AH batteries with NB terminals
Maintenance-free, spill-proof design with advanced AGM technology
Guaranteed compatibility with original Lark 4 Plus wheelchair batteries
Wide operating temperature range for reliable use in various conditions
Backed by a 1-year warranty for quality and durability assurance
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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 | 35 AH

Terminal Type

Nut & Bolt

Lark of America Lark 4 Plus — Replacement for Lark 4 Plus Wheelchair

This replacement battery pair is tailored for the Lark of America Lark 4 Plus wheelchair and includes both 12V 35AH batteries required for proper operation. Crafted for compatibility, rugged performance, and reliable service life, these units deliver the power your chair needs across a wide temperature range and heavy-use scenarios. The listed price includes both batteries; single replacement options are available under Wheelchair Batteries by V and AH. Each battery is designed to meet or exceed the original manufacturer specifications for quality and fit.

Key Specifications

  • Model compatibility: Lark of America Lark 4 Plus
  • Volts: 12V
  • Amps / Capacity: 35 AH
  • Terminal: NB (Nut & Bolt)
  • Package contains: 2 batteries
  • Chemistry: SLA (Sealed Lead Acid)
  • Technology: AGM (Absorbent Glass Mat)
  • Maintenance: Maintenance-free
  • Spill status: Spill Proof
  • Weight: 49.4 Lbs
  • Dimensions: Length 7.72" × Width 5.14" × Height 6.14"
  • Warranty: 1-year Warranty (SigmasTek)
  • Shipping methods: UPS Ground and USPS
  • Shipping time: We ship in 1 business day for all in-stock items
  • Guaranteed compatibility: Meets or exceeds original manufacturer specifications

Benefits

  • Durability: Robust AGM design and sealed construction reduce leakage risk and improve resistance to vibration and shock for reliable mobility support.
  • Long life: Low-maintenance SLA chemistry offers extended service life and dependable day-to-day performance—ideal as a long-lasting battery solution for mobility devices.
  • High performance: The high-discharge architecture supplies the power demands of motors and control systems, classifying these cells as a dependable high-performance battery option.
  • Safe installation: Spill-proof, maintenance-free design and NB terminals make replacement straightforward—reuse existing cables and original battery configuration.
  • Broader uses: While intended for the Lark 4 Plus, these batteries are appropriate for similar mobility platforms and can be matched to small UPS or emergency power setups if specifications align.
  • Support and warranty: Purchase with confidence thanks to a one-year SigmasTek warranty and next-business-day shipping on in-stock items.

Get your Lark 4 Plus back to full power. Order this pair of 12V 35AH replacement batteries now for a high-performance, long-lasting battery solution and fast shipping backed by a 1-year warranty.

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

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