Sonnenschein 3FX3S High Performance Compatible Replacement Battery
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⚠️ 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 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
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
⚠️ 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
6 Volts | 7 AH
Terminal Type
F1
Sonnenschein 3FX3S Replacement Battery — Compatible with Sonnenschein 3FX3S
Replace your aging power source with a reliable, high-quality Sonnenschein 3FX3S replacement battery designed for emergency lighting systems. This high-performance battery delivers dependable performance and 100% compatibility with the Sonnenschein 3FX3S model, offering a maintenance-free, spill-proof solution for critical backup power. Whether you need a long-lasting battery for emergency exits, alarms, or medical devices, this replacement battery is built to meet the demands of safety and uptime.
Key Specifications
- Absorbent Glass Mat (AGM) Technology
- Maintenance-Free Design
- Spill Proof Construction
- U.L. Recognized and CE Certified
- Brand New, Factory Fresh
- 1 Year Warranty
- Model Compatibility: Sonnenschein 3FX3S
- Manufacturer / Brand: SigmasTek
- Voltage: 6 Volts
- Capacity / Notes: 7 AHF1
Benefits
This Sonnenschein 3FX3S replacement battery is engineered for durability and dependable service life. Its AGM construction delivers a robust, vibration-resistant internal structure that supports repeated charge/discharge cycles while remaining maintenance-free. As a long-lasting battery option, it minimizes downtime and reduces replacement frequency in mission-critical applications.
- Durability: Spill-proof construction and sealed design protect against leaks and corrosion.
- Long Life: AGM technology and factory-fresh cells extend useful service life compared to conventional batteries.
- High Performance: Consistent output under load ensures emergency lighting and alarm systems perform when needed.
- Typical Applications: Emergency lighting, security alarms, fire alarms, UPS systems, emergency power, medical equipment, consumer electronics, and home & garden safety devices.
Installing a Sonnenschein 3FX3S replacement battery ensures your system maintains certified safety standards while benefiting from the performance of a high-performance battery that is optimized for emergency applications.
Ready to upgrade to a reliable, long-lasting battery? Purchase your Sonnenschein 3FX3S replacement battery today and enjoy guaranteed compatibility, quality certifications, and trusted performance. Order now to ensure uninterrupted protection.
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