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SigmasTek  |  SKU: BW-8611

Invacare Panther LX-4 Compatible 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 terminal

➤ Maintenance-free and spill-proof AGM technology for safety and durability

➤ Designed to meet or exceed original manufacturer specifications

➤ Wide operating temperature range ensures reliable power in various conditions

➤ Backed by a 1-year warranty for peace of mind and quality assurance


📦🚀 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

Invacare Panther LX-4 Replacement Battery (12V 35AH, NB Terminal)

Give your Invacare Panther LX-4 chair the power it needs with this set of two 12V 35AH replacement batteries featuring NB (Nut & Bolt) terminals. These maintenance-free, spill-proof batteries are engineered for high performance and a long expected service life. As a reliable replacement battery option, they are built to meet or exceed original manufacturer specifications—delivering a long-lasting battery solution that supports consistent range and dependable operation for your Panther LX-4.

Key Specifications

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

Benefits

  • Proven Durability: AGM and SLA construction deliver a maintenance-free, spill-proof design that withstands everyday use and vibration for consistent reliability.
  • Extended Runtime: The 35AH capacity and high discharge design provide substantial runtime and longevity—making this a dependable long-lasting battery for the Panther LX-4.
  • High Performance: Designed as a high-performance battery replacement, these units are tuned to meet the power demands of motors and controllers for steady acceleration and control.
  • Broad Application: While tailored for the Invacare Panther LX-4, these batteries are also suitable for similar mobility devices, UPS backup systems, emergency power, and compatible power tool setups.
  • Easy Swap: Replace the old batteries using the same original configuration and existing cables—verify physical dimensions before purchase to ensure proper fit.
  • Support & Delivery: Backed by a 1-year warranty (SigmasTek) and fast shipping via UPS Ground or USPS with 1 business day handling for in-stock items, you’ll be covered from order to installation.

Confirm the dimensions of your current batteries before ordering to ensure compatibility since manufacturer requirements can change without notice. If you prefer to buy a single battery rather than this two-pack, please visit Wheelchair Batteries by V and AH to choose the correct item. Ready to upgrade your power? Buy this Invacare Panther LX-4 replacement battery set now for a dependable, high-performance power solution.


Payment & Security

Payment methods

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