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SigmasTek  |  SKU: BW-8654

Karma Medical Products KS-747 Compatible 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 and spill-proof design for hassle-free use

➤ AGM technology ensures long service life and durability

➤ Guaranteed compatibility with original KS-747 wheelchair batteries

➤ Backed by a 1-year warranty for reliable quality assurance


📦🚀 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

Karma Medical Products KS-747 Replacement Battery (2-Pack)

Restore dependable power to your Karma Medical Products KS-747 wheelchair with this compatible, high-performance replacement battery 2-pack. These 12V 35AH maintenance-free batteries deliver consistent discharge performance, wide operating temperature resilience, and a long expected service life. The KS-747 replacement battery set uses AGM/SLA technology to provide safe, spill-proof operation and quality that meets or exceeds the original manufacturer specifications.

Key Specifications

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

Benefits

  • Built to Last: The AGM design and sealed SLA chemistry provide resistance to vibration and shock, resulting in a durable replacement battery option that withstands daily use in mobility equipment.
  • Enhanced Longevity: Engineered for high discharge performance and broad temperature range, this pack provides reliable runtime and reduced frequency of replacements — a strong long-lasting battery choice.
  • High Performance Power: Delivering stable 12V output at 35AH, these batteries support motor loads and onboard electronics for smooth operation of your KS-747 wheelchair.
  • Safe and Low Maintenance: The sealed, spill-proof construction means no electrolyte handling and minimal upkeep, making these batteries ideal for home and travel use.
  • Versatile Applications: While optimized for the Karma KS-747, this 2-pack can also power other mobility devices, UPS backups, emergency lighting, medical equipment, and power tools matching these specs.
  • Easy Replacement: Install in the original layout and reuse the existing cables. Verify dimensions before ordering since manufacturer requirements can change without notice.

Ready for reliable, long-lasting performance? Buy the Karma Medical Products KS-747 replacement battery 2-pack now and take advantage of fast shipping and a 1-year warranty for peace of mind. Order your high-performance battery today.


Payment & Security

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