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SigmasTek  |  SKU: BW-9597

Invacare Dart High Performance Wheelchair Replacement Battery

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

➤ Factory fresh, high-quality replacement batteries for Invacare Dart wheelchairs

➤ 100% compatible with Invacare Dart units, ensuring seamless fit and performance

➤ Absorbent Glass Mat (AGM) technology for deep cycle usage and long-lasting power

➤ Valve regulated, spill-proof design for safe and reliable operation

➤ Backed by a 1-year warranty and certified for quality and safety (UL & CE)


📦🚀 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 Dart Wheelchair Batteries — Compatible with Invacare Dart (SP12-35 NB)

Upgrade your Invacare Dart mobility with these factory-fresh replacement battery units engineered for reliable compatibility, exceptional performance, and dependable day-to-day operation. These replacement batteries are designed specifically for the Invacare Dart and offer deep-cycle capability and spill-proof construction so your power chair maintains consistent runtime and dependable starts. If your Invacare Dart requires the SP12-35 NB (12 V 35 AH) batteries, this high-performance battery option delivers the long-lasting battery life and energy density you need to stay mobile and confident on every outing.

Key Specifications

  • Quantity: 2 batteries (required configuration for Invacare Dart)
  • 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: 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
  • Note: Use all existing cables and hardware from your original configuration to connect the new wheelchair batteries

Benefits

  • Durability — AGM construction and valve-regulated, spill-proof design protect internal plates and electrolyte, giving you a robust and maintenance-free replacement battery that stands up to daily use.
  • Long Life — Designed for deep cycle usage, the SP12-35 NB cells offer extended cycle life and consistent capacity retention for reliable longer runtimes between charges, making this a true long-lasting battery for mobility equipment.
  • High Performance — The power/volume ratio is optimized for high energy density so you get more usable power in a compact form factor. This high-performance battery supports steady output even under heavy load, keeping your power chair responsive.
  • Safety & Compliance — U.L. recognition and CE certification ensure the batteries meet industry safety and quality benchmarks, helping protect you and your equipment.
  • Typical Applications — Ideal for electric wheelchairs, power chairs, mobility chairs, and mobility scooters that require SP12-35 NB 12V 35AH batteries. These replacement batteries are tailored to restore original performance in your Invacare Dart unit.
  • Confidence & Support — Each battery set is performance guaranteed, brand new from factory fresh stock, and backed by a 1-year warranty. For purchasing help, contact customer service at or e-mail us.

Replace your worn or weak batteries today with this reliable replacement battery set for the Invacare Dart (SP12-35 NB). Order now to restore peak performance and enjoy a high-performance, long-lasting battery solution—most in-stock orders ship within 24 hours. Buy with confidence and keep your mobility device powered and ready.


Payment & Security

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