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SigmasTek  |  SKU: BW-10580

Amigo RT Express Jr High Performance Wheelchair Replacement Battery

Sale price $89.89 USD Regular price $117.70
Shipping calculated at checkout.

➤ Factory fresh, high-quality replacement batteries for Amigo RT Express Jr

➤ 100% compatible with Amigo RT Express Jr wheelchair units

➤ AGM technology ensures deep cycle usage and long-lasting power

➤ Valve regulated, spill-proof design for safety and durability

➤ Comes with a 1-year warranty and guaranteed 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.

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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 | 18 Ah

Terminal Type

Nut & Bolt

SP12-18 NB (12V 18AH) Replacement for Amigo RT Express Jr Wheelchair

The SP12-18 NB (12V 18AH) replacement batteries are designed for reliable compatibility with the Amigo RT Express Jr wheelchair. These factory-fresh deep-cycle batteries deliver the consistent power and long battery life needed for daily mobility, offering a high-performance battery option for users who rely on their chair for independence and mobility.

Key Specifications

  • Model: SP12-18 NB
  • Compatible Model: Amigo RT Express Jr wheelchair
  • Voltage: 12 Volts
  • Capacity: 18 Ah
  • Technology: Absorbent Glass Mat (AGM)
  • Usage: Designed for Deep Cycle Usage
  • Construction: Valve Regulated, Spill Proof
  • Feature: Power/Volume Ratio Yielding Unrivaled Energy Density
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Performance: Performance Guaranteed
  • Warranty: 1 Year
  • Brand: SigmasTek
  • Terminal: Nut & Bolt
  • Note: Amigo RT Express Jr requires 2 batteries for full operation

Benefits

These replacement batteries provide robust durability and are tailored to the demands of mobility equipment. The AGM, valve-regulated design produces a sealed, maintenance-free solution that resists vibration and prevents spills, making it a reliable long-lasting battery for everyday use. With high energy density and deep-cycle capability, the SP12-18 NB supports extended travel distances and frequent starts without significant performance degradation.

As a high-performance battery, it ensures stable power delivery for motors and control systems in power chairs and mobility scooters. The nut-and-bolt terminal style enables secure, proven connections when using existing wiring and hardware from your original setup. These features make the battery ideal for electric wheelchairs, power chairs, mobility chairs, and mobility scooters.

Beyond mobility, the durability and deep-cycle attributes of this battery also suit light UPS and emergency power applications, as well as portable tools that require sustained power output. Backed by U.L. and CE recognition plus a one-year warranty, these replacement batteries are a sensible choice for users seeking dependable performance and peace of mind.

Restore full functionality to your Amigo RT Express Jr—order the SP12-18 NB replacement batteries today for a trusted, long-lasting battery solution.


Payment & Security

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