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SigmasTek  |  SKU: BW-9599

Invacare Cat Basic (14 Inch Or Less) High Performance Wheelchair Replacement Battery

Sale price $183.99 USD Regular price $280.53
Shipping calculated at checkout.

➤ Factory fresh replacement batteries for Invacare Cat Basic (14 Inch or less) wheelchairs

➤ High-quality AGM technology ensures deep cycle performance and long battery life

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

➤ 100% compatible with your original Invacare Cat Basic unit using existing cables and hardware

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


📦🚀 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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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

Replacement Invacare Cat Basic (14 Inch or less) Wheelchair Batteries — Compatible with Invacare Cat Basic (SP12-35 NB)

Restore reliable mobility to your Invacare Cat Basic (14 Inch or less) with these brand-new replacement batteries designed for perfect compatibility and consistent performance. These high-performance replacement batteries are engineered to meet the demands of deep-cycle wheelchair applications and deliver a long-lasting battery solution for your mobility needs. If your Cat Basic requires SP12-35 NB (12 V 35 AH) batteries, this set offers factory-fresh quality and dependable operation.

Key Specifications

  • Quantity: 2 batteries (required configuration for Invacare Cat Basic)
  • Model: SP12-35 NB
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Usage: Designed For Deep Cycle Usage
  • Construction: Valve Regulated Spill Proof Construction
  • Performance Feature: Power/Volume Ratio Yielding Unrivaled Energy Density
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Performance: Performance Guaranteed
  • Warranty: 1 Year Warranty
  • Brand: SigmasTek
  • Terminal Type: Nut & Bolt
  • Note: Use existing cables and hardware from your original configuration to connect the new batteries

Benefits

  • Durability — The AGM and valve-regulated design provide a sealed, maintenance-free construction that resists vibration and leakage, making these batteries robust for everyday mobility use.
  • Long Life — Specifically designed for deep cycle usage, the SP12-35 NB cells deliver extended service life and stable capacity, giving you a long-lasting battery option to keep your wheelchair running longer between charges.
  • High Performance — Optimized power-to-volume ratio affords an unrivaled energy density so you enjoy reliable power output and efficient space utilization in compact wheelchair battery compartments.
  • Safety & Standards — U.L. recognition and CE certification indicate compliance with industry standards for safety and performance in mobility devices.
  • Typical Applications — Perfect for electric wheelchairs, power chairs, mobility chairs, and mobility scooters that specify SP12-35 NB 12V 35AH batteries. These replacement batteries restore original equipment performance for the Invacare Cat Basic (14 Inch or less).
  • Confidence & Support — Each set is brand new, factory fresh, and backed by a 1-year warranty with performance guaranteed. For assistance with purchasing, contact customer service at or e-mail us.

Don’t wait—replace your worn batteries with this proven replacement battery set for the Invacare Cat Basic (SP12-35 NB) and enjoy a high-performance, long-lasting battery upgrade. Order now to get reliable mobility and fast shipping on in-stock items.


Payment & Security

Payment methods

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