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SigmasTek  |  SKU: BW-9491

Ortho-Kinetics Lark XT High Performance Wheelchair Replacement Battery

Sale price $214.25 USD Regular price $280.53
Shipping calculated at checkout.

➤ Factory fresh, brand new replacement batteries for reliable performance

➤ 100% compatible with Ortho-Kinetics Lark XT wheelchair models

➤ Absorbent Glass Mat (AGM) technology for deep cycle durability

➤ Valve regulated, spill-proof design for safe and maintenance-free use

➤ Backed by a 1-year warranty and certified for quality and safety


📦🚀 FAST SHIPPING: Usually ships same day if ordered before 2 PM EST

⚠️ Quick Reminder

🔹 Please ensure the original battery model number is listed in our product description and that your device model number matches for compatibility.
🔹 We only supply the batteries shown in the images. Device images are provided for reference only.

📸 Send Your Battery Photo / Unsure? Expert Help

Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.
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Battery Care Guide

Battery Usage and Maintenance Guidelines 🔋

Please read the following instructions carefully before using your new battery. Proper adherence will help ensure optimal performance and extended service life.

1. Cordless Phones, PDAs, and Power Tools (NiMH, NiCd, Lithium-Ion) 📱

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Operate the device until the battery reaches approximately 20% capacity.
  • Avoid premature recharging.
  • Do not allow the battery to fully discharge during the initial cycles.

Post-Conditioning

  • Recharge the battery only when necessary.
  • These batteries are capable of approximately 500 charge cycles:
  • Once daily → ~500 days
    Twice daily → ~250 days
    Note: Even a partial recharge is considered a full cycle.

2. Sealed Lead Acid (SLA) Batteries 💡

  • No conditioning required.
  • Maintain the battery in a fully charged state; avoid complete discharge.
  • Capable of 300–400 charge cycles.
  • Expected service life: 2–3 years, depending on usage conditions.

3. Laptop Batteries (Lithium-Ion) 💻

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Charge fully, then discharge to approximately 20% capacity.
  • Avoid complete discharge, as some devices may not detect a fully drained battery.

Post-Conditioning

  • Minimize frequent plugging and unplugging.
  • Allow the battery to discharge moderately at least once per month to maintain optimal performance.
  • Occasional cycling is recommended to sustain battery health.

Professional Recommendation

Adhering to these guidelines will enhance battery longevity and ensure reliable performance.

For further assistance regarding your battery or order, our customer support team is available to provide guidance.

Delivery and Shipping

Everything You Need to Know About Shipping with BatteryWeb (USA)

We know reliable delivery matters when you need power fast. Here’s how BatteryWeb makes shipping easy across the USA:

🚚 Shipping & Delivery

Most orders ship next business day (some products like sealed lead acid may take a little longer).

Same-day shipping available if you order before 11:59 AM (delivery depends on the carrier).

We ship nationwide using FedEx, UPS, USPS, DHL, and regional ground carriers.

Shipping costs are calculated automatically at checkout based on weight, distance, and carrier.

Transit times shown are estimates only (business days, no weekends/holidays).

🌍 Shipping Restrictions

Lithium batteries cannot be shipped by USPS or air. They must go via FedEx Ground, UPS Ground, or DHL Ground.

PO Box deliveries are only available via USPS.

At this time, we do not ship lithium batteries to Puerto Rico. NiMH, NiCd, and Alkaline can be shipped.

📦 Important Notes

Double-check your shipping address! If an incorrect address is used and the order is returned, re-shipping costs are the buyer’s responsibility.

If a product is temporarily out of stock, we’ll notify you right away with the expected restock date—or issue a refund if you prefer.

💲 Currency & Pricing

All prices are shown in USD.

Orders shipped outside the USA may be subject to local taxes, customs fees, or import duties. These are the buyer’s responsibility.

⚡ At BatteryWeb, we’re committed to getting your batteries delivered quickly, safely, and affordably—so you’ll always have the power you need, when you need it.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

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

🔹 Our products are generic replacement parts and are not affiliated with, endorsed by, or manufactured by the original equipment manufacturers (OEMs).


Volts & Amps

12 Volts | 35 AH

Terminal Type

Nut & Bolt

Ortho-Kinetics Lark XT Replacement Batteries (SP12-35 NB) — Compatible with Ortho-Kinetics Lark XT

Replace worn or weak batteries in your Ortho-Kinetics Lark XT with these brand new SP12-35 NB replacement batteries. Each unit is a 12V 35 AH AGM battery engineered for deep-cycle performance and spill-proof, valve-regulated construction. Designed for 100% compatibility with the Ortho-Kinetics Lark XT system, these batteries provide the reliable, long-lasting battery power needed to keep mobility devices functioning at peak performance.

Key Specifications

  • Model: SP12-35 NB
  • Voltage: 12 Volts
  • Capacity: 35 AH (amp-hours)
  • Technology: Absorbent Glass Mat (AGM)
  • Usage: Designed for deep cycle usage
  • Construction: Valve regulated, spill proof
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand new, factory fresh
  • Warranty: 1 Year Warranty
  • Terminal Type: Nut & Bolt
  • Brand: SigmasTek
  • Compatibility: 100% compatible with Ortho-Kinetics Lark XT; existing cables and hardware must be reused for connection

Benefits

These replacement batteries are crafted for durability and reliable long-term service. The AGM design supports deep cycling while providing enhanced vibration tolerance and minimal maintenance. As a long-lasting battery solution, the SP12-35 NB offers consistent runtime and dependable rechargeability for mobility devices used daily.

The high-performance battery construction ensures users benefit from superior energy density and a favorable power-to-volume ratio, maximizing operating time without increasing battery footprint. Valve-regulated, spill-proof construction reduces leakage risk and simplifies handling during installation and disposal. U.L. and CE certifications provide added confidence in safety and manufacturing standards, while the included one-year warranty underscores the brand’s commitment to quality.

These batteries are ideal for electric wheelchairs, power chairs, mobility chairs, and mobility scooters—applications where a reliable replacement battery can mean improved independence and uninterrupted mobility. Installation requires the reuse of your original cables and hardware, and the nut & bolt terminals provide secure connectivity for low-resistance power delivery.

Don’t let weak batteries limit mobility. Purchase the SP12-35 NB replacement batteries for your Ortho-Kinetics Lark XT today and enjoy reliable, high-performance battery power.


Payment & Security

Payment methods

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