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SigmasTek  |  SKU: BW-8603

Everest & Jennings Quest 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 AGM technology for safety and durability

➤ Guaranteed compatibility with original Everest & Jennings Quest batteries

➤ Wide operating temperature range for reliable wheelchair power

➤ 1-year warranty ensures quality and long service life


📦🚀 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.
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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

Everest & Jennings Quest Replacement Battery (2-Pack) - 12V 35AH NB

Keep your Everest & Jennings Quest wheelchair powered with this compatible, high-quality replacement battery pair engineered for performance and reliability. These two 12V 35AH batteries with NB terminals deliver consistent power and are designed to match or exceed the original manufacturer specifications. If you need dependable runtime and maintenance-free operation, this replacement battery kit offers the stability and durability you expect from a trusted mobility power solution.

Key Specifications

  • Package contains 2 batteries
  • Maintenance-free
  • Spill Proof
  • SLA Chemistry
  • AGM Technology
  • Guaranteed compatibility with original batteries
  • 1-year Warranty
  • Volts: 12
  • Amps: 35
  • Weight: 49.4Lbs
  • Length: 7.72
  • Width: 5.14
  • Height: 6.14
  • Terminal: NB
  • Shipping Methods – UPS Ground and USPS
  • We ship in 1 business day for all in-stock items
  • 1-year Warranty*SigmasTek*12 Volts35 AHNut & Bolt

Benefits

  • Durability: Robust AGM construction and sealed SLA chemistry resist vibration and environmental stress, ensuring dependable use over time.
  • Long life: Designed with a high-discharge profile and wide operating temperature tolerance for extended service life, making this a long-lasting battery solution.
  • High performance: The battery pack supports frequent starts, stops, and accessory loads—ideal for powerchairs that demand steady output.
  • Maintenance-free operation: No watering or periodic electrolyte checks required—ready to install and use with your existing cables.
  • Multiple applications: Although optimized for the Everest & Jennings Quest wheelchair, this high-performance battery can also be used for UPS backup, emergency power, and other 12V mobility applications when the specifications match.
  • Safety features: Spill-proof AGM design reduces risk during handling and installation.

Ready to replace worn or weak batteries in your Everest & Jennings Quest? Confirm your battery dimensions and install the two batteries in the original configuration using your current wiring. Purchase this reliable, replacement battery 12V 35AH NB terminal set today for fast shipping, a 1-year warranty, and the confidence of high-performance, long-lasting battery power.


Payment & Security

Payment methods

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  • Discover
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  • Visa

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