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SigmasTek  |  SKU: BW-10311

Bear Medical Systems Bear 33 Portable Ventilator Compatible Replacement Battery

Sale price $14.99 USD Regular price $29.10
Shipping calculated at checkout.

➤ Factory fresh SP12-3.5 battery ensures reliable power for Bear 33 ventilators

➤ Absorbent Glass Mat (AGM) technology for enhanced durability and performance

➤ Maintenance-free and spill-proof design for hassle-free use

➤ Rugged plastic case provides strong protection and longevity

➤ U.L. Recognized and CE Certified for safety and quality assurance


📦🚀 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 | 3.5 Ah

Terminal Type

F1

SP12-3.5 (12V 3.5AH) Replacement Battery — Compatible with Bear Medical Systems Bear 33 Portable Ventilator

Ensure reliable backup power for your Bear Medical Systems Bear 33 Portable Ventilator with this factory-fresh SP12-3.5 replacement battery. Designed for medical applications, this maintenance-free, spill-proof battery provides the consistent, safe power required for portable ventilators and other critical devices. When uninterrupted performance matters, choose this high-performance battery for dependable operation.

Key Specifications

  • Compatible Model: Bear Medical Systems Bear 33 Portable Ventilator
  • Battery Model: SP12-3.5
  • Voltage: 12 Volts
  • Capacity: 3.5 AH
  • Terminal Type: F1
  • Brand: SigmasTek
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Design: Maintenance-Free Design
  • Construction: Spill Proof Construction
  • Case: Rugged Plastic Case And Cover
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Performance: Performance Guaranteed
  • Warranty: 1 Year Warranty

Benefits

  • Medical-Grade Reliability — Maintenance-free AGM construction and a rugged, spill-proof case make this battery well-suited for portable ventilators and medical transport equipment where reliability is critical.
  • Long-Lasting Operation — Designed to provide consistent runtime and dependable recharge cycles, this long-lasting battery reduces the risk of unexpected power loss during patient care.
  • High-Performance Design — Compact but powerful, the SP12-3.5 offers the stable output needed by sensitive electronics and monitoring devices.
  • Safe & Certified — UL recognition and CE certification help ensure compliance and quality for medical environments and regulated equipment.
  • Broad Use Cases — Ideal for the Bear 33 ventilator and other small medical devices; also a practical choice for compact UPS systems, emergency backup power and portable tool applications demanding reliable, compact batteries.

Keep life-supporting equipment ready with this SP12-3.5 replacement battery. Purchase now to secure a high-performance, long-lasting battery and fast shipping for in-stock items.


Payment & Security

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