For questions, quotes, or help finding the right battery, feel free to email us at sales@batteryweb.com

New collections added! Learn more

🎉 First Order Special 🎉

First-time shoppers get 5% OFF on batteries & accessories!

WELCOME5
SigmasTek  |  SKU: BW-10799

21st Century Bounder Gurney Wheelchair Durable Replacement Battery

Sale price $501.92 USD Regular price $657.18
Shipping calculated at checkout.

➤ Compact 12-inch length fits various wheelchair models

➤ High capacity 100 Ah for extended power supply

➤ Durable nut & bolt terminal ensures secure connections

➤ Reliable 12-volt output for consistent performance

➤ Backed by 12-month 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.

📸 Send Your Battery Photo / Unsure? Expert Help

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.
POST YOUR IMAGE

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 | 100 Ah

Terminal Type

Nut & Bolt

21st Century Replacement 12V 100Ah Wheelchair Battery (SigmasTek) - Compatible Models

Power mobility devices reliably with this 12V 100Ah wheelchair replacement battery from SigmasTek. Built as a heavy-duty, high-capacity option for wheelchairs and similar mobility applications, this battery delivers the steady, long-lasting battery performance required for daily use. With robust construction and a nut & bolt terminal design, it’s optimized for secure installation in larger mobility platforms and heavy-duty applications.

Key Specifications

  • Manufacturer: SigmasTek
  • Brand Replacement: 21st Century
  • Type: Wheelchair
  • Voltage: 12 Volts
  • Amp Hours: 100 Ah
  • Terminal Type: Nut & Bolt
  • Polarity: "+/-"
  • Length: 12 in.
  • Width: 6.6 in.
  • Height: 8.15 in.
  • Weight: 136.00 lb.
  • Warranty: 12 Months

Benefits

This 12V 100Ah unit is a high-performance battery tailored for heavy-use mobility equipment and other demanding 12V systems. It provides deep cycle capacity and substantial energy storage so users can rely on extended run times between charges. As a replacement battery for 21st Century-style wheelchair systems, it is engineered for durability and to withstand frequent cycling and real-world vibration from daily travel.

The nut & bolt terminal type ensures a rugged, secure connection that resists loosening and provides stable contact under load. Dimensions and weight reflect its heavy-duty construction, making it suitable for full-size wheelchairs, mobility platforms, and other high-capacity applications such as larger scooters and utility carts. Backed by a 12-month warranty, this SigmasTek replacement battery offers both performance and peace of mind.

Whether you need a long-lasting battery for mobility independence or a high-performance battery for demanding applications, this 100Ah SigmasTek replacement delivers the power and reliability expected from a premium replacement battery. Its capacity and design make it ideal for users who require consistent, durable energy storage in a wheelchair or similar device.

Ready to upgrade your mobility system with a reliable 12V 100Ah replacement battery? Order the SigmasTek 21st Century replacement now to secure a long-lasting battery solution and keep your wheelchair running at peak performance.


Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.