For questions, quotes, or help finding the right battery, feel free to email us at sales@batteryweb.com

New collections added! Learn more

🎉 First Order Special 🎉

First-time shoppers get 5% OFF on batteries & accessories!

WELCOME5
SigmasTek  |  SKU: BW-10848

Electric Mobility 355 Compatible High Performance Wheelchair Replacement Battery

Sale price $77.19 USD Regular price $101.06
Shipping calculated at checkout.

➤ Reliable 12-volt power supply for various devices

➤ 10.5 Ah capacity ensures long-lasting performance

➤ Compact design fits easily into tight spaces

➤ Durable construction for extended battery life

➤ Maintenance-free sealed lead-acid technology


📦🚀 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.
POST YOUR IMAGE

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 | 10.5 Ah

Terminal Type

F2

SigmasTek 12 Volts 10.5 Ah F2 Battery - Compatible Replacement

This SigmasTek 12 Volts 10.5 Ah F2 replacement battery is crafted for reliable power delivery and compatibility in a variety of compact power applications. Whether you're maintaining mobility equipment, small backup systems, or portable electronics, this high-performance battery offers a compact, dependable energy source. The model is designed to be an effective, long-lasting battery option where space and dependable output matter most.

Key Specifications

  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 10.5 Ah
  • Terminal: F2
  • Condition: Replacement battery (product listing)

Benefits

Compact yet robust, this SigmasTek 12 Volts 10.5 Ah F2 unit delivers the durability you expect from a modern sealed battery design. As a replacement battery option, it provides stable output and dependable recharging characteristics suitable for repeated cycle use and standby service. Its dimensions and terminal configuration (F2) make it easy to fit into many devices that require a small, concentrated power source.

Designed with longevity in mind, this 10.5 Ah battery is ideal for applications such as small UPS units, emergency lighting, alarm systems, portable medical devices, and compact mobility accessories. Its construction supports frequent charge/discharge cycles, giving you reliable runtime and consistent performance. When selected as a replacement battery, it restores functionality and extends the service life of your equipment without complex installation steps.

Practical for both professionals and consumers, the SigmasTek 12V 10.5Ah is a sensible choice for anyone seeking a long-lasting battery that balances capacity and size. While compact, it still serves as a high-performance battery for situations demanding steady current and predictable behavior under load. Use it to replace worn-out cells and regain dependable backup or operational power in critical systems.

If you need a dependable replacement battery with the right fit and reliable output, choose the SigmasTek 12 Volts 10.5 Ah F2. Add this long-lasting battery to your cart now to ensure uninterrupted performance and quick delivery.


Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.