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SigmasTek  |  SKU: BW-12990

Sonnenschein 889556500 Compatible Replacement Battery

Sale price $72.00 USD Regular price $83.70
Shipping calculated at checkout.

➤ Compatible replacement for Sonnenschein 889556500 emergency lighting battery

➤ Uses advanced Absorbent Glass Mat (AGM) technology for reliable performance

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

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

➤ Includes 1-year warranty and guaranteed factory-fresh condition


📦🚀 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

Sonnenschein 889556500 Replacement Battery — Compatible with Sonnenschein 889556500

Engineered for dependable emergency power, the replacement Sonnenschein 889556500 delivers OEM-level compatibility, consistent performance, and industry-grade reliability. Designed as a direct-fit replacement battery for your Sonnenschein 889556500 model, this high-performance battery uses AGM technology to provide maintenance-free operation and spill-proof safety—ideal when you need a long-lasting battery solution for critical systems.

Key Specifications

  • Compatible Model: Sonnenschein 889556500
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Design: Maintenance-Free Design
  • Construction: Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Replacement Brand/Part Data: Sonnenschein 889556500 Battery (Replacement) *SigmasTek*
  • Voltage: 12 Volts
  • Capacity: 18 Ah
  • Terminal Type: Nut & Bolt

Benefits

This Sonnenschein 889556500 replacement battery is built for durability and dependable long life. AGM construction delivers superior vibration resistance, low internal resistance for reliable charge acceptance, and a sealed, maintenance-free design that reduces service time and risk of leaks. As a high-performance battery, it gives stable output under load, ensuring emergency lighting, security systems, and medical devices remain powered when they matter most.

Expect consistent runtime and recharge performance across repeated cycles—making this a long-lasting battery option for both commercial and residential settings. Its spill-proof design and U.L./CE recognition make it safe for indoor installations and regulated environments. The nut & bolt terminal provides secure, low-resistance connections for systems that demand robust electrical contact.

Typical applications include emergency lighting and emergency power systems, security and fire alarm panels, home & garden automated devices, consumer electronics backup, and medical equipment. It also serves well in UPS systems and other standby power setups where a dependable, high-performance battery is required. If you need a direct replacement for Sonnenschein 889556500, this model ensures compatibility and trusted performance.

Ready to upgrade to a reliable replacement battery? Order your Sonnenschein 889556500 replacement battery today and secure dependable emergency power with fast shipping and a 1-year warranty.


Payment & Security

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