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SigmasTek  |  SKU: BW-10770

Theradyne AGM1234T High Performance Wheelchair Replacement Battery

Sale price $107.13 USD Regular price $140.27
Shipping calculated at checkout.

➤ Factory fresh Theradyne AGM1234T battery ensures reliable performance

➤ Absorbent Glass Mat (AGM) technology provides deep cycle durability

➤ Valve regulated, spill-proof design for safe and maintenance-free use

➤ 100% compatible with original Theradyne AGM1234T wheelchair unit

➤ Backed by a 1-year warranty for peace of mind and guaranteed quality


📦🚀 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 Theradyne AGM1234T Wheelchair Battery — SP12-35 NB (Theradyne AGM1234T)

This replacement Theradyne AGM1234T battery is a factory fresh, high-quality option designed for the Theradyne AGM1234T wheelchair. The SP12-35 NB (12 V 35 AH) replacement battery provides full compatibility with your unit and delivers the robust performance required for daily mobility. If you need a dependable, long-lasting battery that restores range and responsiveness, this high-performance battery is engineered for deep-cycle demands.

Key Specifications

  • Model: SP12-35 NB
  • Compatible with: Theradyne AGM1234T
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Terminal Type: Nut & Bolt
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Designed For: Deep Cycle Usage
  • Construction: Valve Regulated Spill Proof Construction
  • Energy Feature: 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
  • Quantity Required: 1 battery

Benefits

This replacement battery offers exceptional durability and a long service life thanks to AGM construction and deep-cycle design. The valve-regulated, spill-proof format eliminates maintenance concerns while delivering a high-performance battery experience with excellent power density for extended run times. Ideal for mobility needs, the battery withstands repeated charge and discharge cycles without compromising output, ensuring reliability for daily outings and extended use.

Typical applications include electric wheelchairs, power chairs, mobility chairs, and mobility scooters. Additionally, this long-lasting battery can be used in backup roles like emergency power supplies, UPS systems, and small power tools that accept a 12V source. Certified by U.L. and CE standards, and backed by a 1 year warranty, this replacement battery gives you the confidence to restore full mobility performance.

For installation, use your existing cables and hardware from the original configuration. Purchase the SP12-35 NB replacement battery for your Theradyne AGM1234T today to enjoy a factory fresh, high-performance battery that brings dependable power and extended life to your mobility device.


Payment & Security

Payment methods

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