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SigmasTek  |  SKU: BW-9742

Golden Technology Companion II GC440 High Performance Wheelchair Replacement Battery

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

➤ Factory fresh, brand new Golden Technology Companion II GC440 wheelchair batteries

➤ 100% compatible with Golden Technology Companion II GC440 unit for easy replacement

➤ AGM technology with valve regulated, spill-proof design for safety and durability

➤ Deep cycle usage optimized for long-lasting power and performance

➤ U.L. Recognized, CE Certified, and backed by a 1-year warranty for peace of mind


📦🚀 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

Replacement Golden Technology Companion II GC440 Battery (SP12-35 NB, 12V 35AH)

Upgrade your Golden Technology Companion II GC440 with a factory-fresh replacement battery engineered for reliable compatibility, dependable performance, and long-term reliability. These replacement Golden Technology Companion II GC440 batteries are 100% compatible with the GC440 unit and deliver the deep-cycle power and steady output required by mobility devices. Whether you need a high-performance battery for daily use or a long-lasting battery to ensure consistent mobility, this SP12-35 NB (12V 35AH) unit offers the quality and safety certifications you expect.

Key Specifications

  • Model Compatibility: Golden Technology Companion II GC440
  • Battery Model: SP12-35 NB
  • Voltage: 12 V
  • Capacity: 35 AH
  • Battery Type: Absorbent Glass Mat (AGM) Technology
  • Designed For: Deep Cycle Usage
  • Construction: Valve Regulated Spill Proof Construction
  • Energy Density: Power/Volume Ratio Yielding Unrivaled Energy Density
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Brand: SigmasTek
  • Terminal Type: Nut & Bolt
  • Installation Note: Requires 2 batteries for the wheelchair; reuse existing cables and hardware

Benefits

  • Durability: Constructed with AGM technology and valve regulated spill-proof design for rugged, maintenance-free operation and resistance to vibration—ideal for mobility equipment.
  • Long Life: Designed for deep cycle usage to provide extended run times and a long-lasting battery life, helping you avoid frequent replacements and downtime.
  • High Performance: Excellent power-to-volume ratio and superior energy density deliver consistent voltage under load for smooth, reliable operation of power chairs and wheelchairs.
  • Safety & Compliance: U.L. recognized and CE certified to meet stringent safety and quality standards so you can trust the battery in critical mobility applications.
  • Versatile Applications: Optimized for electric wheelchairs, power chairs, mobility chairs, and mobility scooters; also suitable as a dependable replacement battery for related portable and standby needs.
  • Practical Use Cases: Ideal when you need a dependable power source for UPS systems, emergency power backup, mobility devices, and power tools where steady deep-cycle performance matters.
  • Hassle-Free Installation: Ship-ready and factory fresh; remember to use your original cables and hardware when installing these replacement batteries in your GC440 unit.

Ready to restore full mobility with a reliable, high-performance battery? Buy your replacement Golden Technology Companion II GC440 SP12-35 NB battery today and enjoy a long-lasting battery solution backed by a 1 year warranty and fast shipping. Order now to secure superior performance and the best value on the market.


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