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SigmasTek  |  SKU: BW-8590

Ortho-Kinetics Lark XT High Performance Replacement Battery Set

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

➤ Includes 2 high-performance 12V 35AH batteries with NB terminals

➤ Maintenance-free and spill-proof design for hassle-free use

➤ AGM technology ensures long service life and durability

➤ Guaranteed compatibility with original Ortho-Kinetics Lark XT batteries

➤ Comes with a 1-year warranty and fast shipping within 1 business day


📦🚀 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.

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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 Battery (Ortho-Kinetics Lark XT)

Engineered for the Ortho-Kinetics Lark XT wheelchair, this pair of replacement batteries offers dependable compatibility and consistent power delivery. Each set includes two 12V 35AH batteries with NB terminals, giving you a high-performance battery option that meets or exceeds original specifications for reliable, long-lasting operation.

Key Specifications

  • Volts: 12
  • Amps: 35 (35 AH)
  • Terminal: NB (Nut & Bolt)
  • Package contains: 2 batteries
  • Weight: 49.4Lbs (package text)
  • Length: 7.72 (inches)
  • Width: 5.14 (inches)
  • Height: 6.14 (inches)
  • Maintenance-free
  • Spill Proof
  • SLA Chemistry
  • AGM Technology
  • Guaranteed compatibility with original batteries
  • 1-year Warranty
  • Brand: SigmasTek
  • Shipping Methods: UPS Ground and USPS
  • We ship in 1 business day for all in-stock items

Benefits

The Ortho-Kinetics Lark XT replacement batteries deliver the durability and extended service life you need from a long-lasting battery. Designed with a high discharge capability, these batteries support peak motor demands while AGM construction and SLA chemistry ensure maintenance-free, spill-proof operation. The result is a reliable power source that keeps your Lark XT moving confidently through daily use.

Beyond wheelchair use, these high-performance batteries are versatile for backup and auxiliary roles such as UPS units, emergency power supplies, and portable tools requiring stable 12V 35AH power. The wide operating temperature range and rugged design help maintain performance in diverse conditions and reduce the need for frequent replacements.

Installation is straightforward: replace batteries in the same original configuration and reuse existing cables. Verify the physical dimensions of your current batteries before ordering to ensure a proper fit, as manufacturer specifications can change without notice. With guaranteed compatibility, a 1-year warranty, and expedited shipping, this replacement battery pair is a dependable choice for restoring your Lark XT’s performance.

Ready to buy a reliable replacement battery for your Ortho-Kinetics Lark XT? Order now for fast shipping and dependable power restoration.


Payment & Security

Payment methods

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