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SigmasTek  |  SKU: BW-8719

Golden Technology Companion II GC340 Premium Replacement Battery Set

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

➤ Includes 2 high-performance 12V 35AH replacement batteries

➤ Maintenance-free, spill-proof AGM technology for safety and reliability

➤ Guaranteed compatibility with original Golden Technology Companion II GC340 batteries

➤ Wide operating temperature range for consistent wheelchair power

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


📦🚀 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

Golden Technology Companion II GC340 Replacement Batteries (2x 12V 35AH, NB)

Restore reliable mobility to your Golden Technology Companion II GC340 with this set of two compatible replacement batteries. Engineered for the Companion II GC340, these 12V 35AH batteries deliver a high-discharge, high-performance battery solution that provides consistent power, maintenance-free convenience, and a wide operating temperature range. Designed to meet or exceed original equipment standards, these batteries offer the durability and long-lasting battery life your mobility device needs.

Key Specifications

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

Benefits

  • Robust durability: AGM design and sealed lead acid construction offer spill-proof, maintenance-free operation that resists corrosion and vibration common in daily mobility use.
  • Extended service life: Built for a long expected service life with a high-discharge capability to handle repeated usage cycles.
  • High-performance battery: Optimized for the power demands of the Golden Technology Companion II GC340, delivering steady voltage under load.
  • Direct replacement: Guaranteed to be compatible with your original batteries when installed in the same configuration and using existing cables; always verify dimensions before purchase.
  • Multi-use suitability: While tailored for the Companion II GC340, these batteries are also well-suited to UPS systems, emergency power reserves, mobility tools, and other 12V 35AH NB terminal applications.
  • Fast fulfillment and assurance: Ships in 1 business day for in-stock items and includes a 1-year warranty from the manufacturer.

If you require only one replacement battery, please visit Wheelchair Batteries by V and AH to select a single unit. Don’t let depleted batteries limit your freedom — order this reliable, long-lasting battery pair for your Golden Technology Companion II GC340 today and enjoy fast shipping and dependable performance.


Payment & Security

Payment methods

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