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SigmasTek  |  SKU: BW-9498

Optiway Technology 2000 Mini U1 High Performance Wheelchair Replacement Battery

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

➤ Factory fresh, high-quality replacement Optiway Technology 2000 Mini U1 batteries

➤ 100% compatible with Optiway Technology 2000 Mini U1 wheelchair units

➤ AGM technology with valve-regulated, spill-proof design for safety and durability

➤ Designed for deep cycle use, providing long-lasting power and performance

➤ Includes 1-year warranty and meets U.L. and CE certification standards


📦🚀 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 Optiway Technology 2000 Mini U1 Batteries (SP12-35 NB) — SigmasTek

Upgrade your Optiway Technology 2000 Mini U1 wheelchair with these factory-fresh replacement batteries from SigmasTek. Designed specifically for the Optiway Technology 2000 Mini U1 (requires 2 batteries, model SP12-35 NB), these 12V 35 AH units use advanced AGM construction and deep-cycle design to deliver consistent, dependable power for mobility devices. If you demand a high-performance battery that provides extended run time and reliable starting power, these long-lasting batteries are an ideal choice.

Key Specifications

  • Compatible Model: Optiway Technology 2000 Mini U1
  • Part Number: SP12-35 NB
  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 35 AH (amp-hours)
  • Terminal Type: Nut & Bolt
  • Technology: Absorbent Glass Mat (AGM)
  • Design: Deep cycle usage
  • Construction: Valve regulated, spill proof
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year
  • Quantity Required: 2 batteries per unit

Benefits

These replacement batteries are engineered for durability and sustained performance. AGM technology offers superior vibration resistance and maintenance-free operation, making these units ideal for wheelchairs, power chairs, and mobility scooters where reliability and safety are paramount. As a high-performance battery solution, the SP12-35 NB provides excellent power-to-volume ratio, yielding high energy density so you get more run time without oversized batteries.

The deep-cycle design ensures long life and repeated recharge capability—perfect for daily mobility use. Valve regulated construction reduces leakage risk and allows safe operation in varied orientations typical of mobility devices. Certified by U.L. and CE, these batteries meet elevated safety and quality standards expected in mobility and medical applications.

Beyond mobility chairs, these long-lasting batteries are suitable for UPS backups, emergency power, and other portable power demands where a 12V 35 AH battery is appropriate. The nut & bolt terminal ensures a secure, low-resistance connection when reused with your existing wiring and hardware.

Buy your replacement Optiway Technology 2000 Mini U1 batteries today and enjoy superior longevity, certified quality, and rapid shipping on in-stock items. Order now to keep mobility devices performing at their best.


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