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-9622

Invacare Excel High Performance Wheelchair Replacement Battery

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

➤ Factory fresh replacement batteries for Invacare Excel wheelchairs

➤ Uses advanced Absorbent Glass Mat (AGM) technology for durability

➤ Valve regulated, spill-proof design ensures safe operation

➤ Deep cycle usage ideal for electric and mobility chairs

➤ Comes with 1-year warranty and guaranteed high performance


📦🚀 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 | 35 AH

Terminal Type

Nut & Bolt

Replacement Invacare Excel Wheelchair Battery - SP12-35 NB (12V 35AH) Compatible with Invacare Excel

Upgrade your Invacare Excel mobility system with this factory-fresh replacement battery engineered for compatibility, dependable performance, and exceptional reliability. This replacement battery is a high-performance battery designed to deliver consistent power for your Invacare Excel unit. Built with advanced Absorbent Glass Mat (AGM) technology and a valve-regulated, spill-proof design, the SP12-35 NB provides a safe, long-lasting battery solution for daily mobility needs. Please note the Invacare Excel requires two batteries (SP12-35 NB, 12V 35AH) and you should reuse your existing cables and hardware to connect the new units for optimal fit and safe operation.

Key Specifications

  • Model: SP12-35 NB
  • Compatible with: Invacare Excel
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Battery Technology: Absorbent Glass Mat (AGM)
  • Design: Designed for Deep Cycle Usage
  • Construction: Valve Regulated, Spill Proof
  • Performance/Volume: High Energy Density
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Brand: SigmasTek
  • Terminal Type: Nut & Bolt
  • Quantity Required per Unit: 2 batteries

Benefits

This replacement battery is built to withstand rigorous daily use and deliver dependable power when you need it most. Its AGM construction and valve-regulated spill-proof design make it durable and maintenance-free, providing a safe and reliable power source that resists vibration and leakage. As a high-performance battery, the SP12-35 NB offers superior energy density, meaning you get more usable runtime from a compact package. The deep-cycle design allows repeated discharges and recharges with minimal capacity loss, contributing to a long-lasting battery life that keeps your mobility equipment ready for use.

Typical applications include electric wheelchairs, power chairs, mobility chairs, and mobility scooters, and the same robust design characteristics also make it suitable for auxiliary UPS systems, emergency power backups, and certain portable power tools where a steady 12V supply is required. Whether you're replacing worn cells or stocking spares, this replacement battery provides consistent performance so your Invacare Excel stays dependable day after day.

Buy your SP12-35 NB replacement battery with confidence today and restore reliable operation to your Invacare Excel. Order now to secure a long-lasting battery at a competitive price and benefit from fast shipping and a 1-year warranty.


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.