Belkin F6C1221-BAT UPS High Performance Replacement Battery
⚠️ 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 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
12 Volts | 5.5 Ah
Terminal Type
F2
SigmasTek SP12-5.5HR Replacement for Belkin F6C1221-BAT UPS
Restore secure backup power to your Belkin F6C1221-BAT Uninterruptible Power Supply (UPS) with the SigmasTek SP12-5.5HR replacement battery. This replacement UPS battery is engineered for dependable service, delivering reliable power when interruptions occur. For safe and correct installation, please use all existing cables and hardware from your original configuration.
Key Specifications
- Brand: SigmasTek
- Model: SP12-5.5HR
- Voltage: 12 Volts
- Capacity: 5.5 Ah (Amp-hours)
- High Rate Discharge Design
- Valve Regulated, Spill Proof Construction
- Low Self-discharge
- High Vibration Resistance
- U.L. Recognized
- CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
- Compatibility: Replacement for Belkin F6C1221-BAT UPS unit
- Installation note: Use all existing cables and hardware from your original configuration
Benefits
This high-performance UPS battery combines safety, durability, and dependable output for critical backup needs. The high rate discharge design enables the battery to provide increased power output during short intervals—ideal for handling transient loads and maintaining system stability during switchover events. Valve regulated, spill proof construction reduces maintenance and helps ensure safe operation in enclosed UPS compartments.
Low self-discharge preserves stored energy during periods of inactivity so the unit will be ready when an outage occurs. High vibration resistance adds mechanical resilience for applications located in environments with physical movement or vibration. As an approved replacement for the Belkin F6C1221-BAT, this SigmasTek battery serves as a long-lasting battery solution for uninterruptible power supply units, emergency power systems, and suitable battery powered tools requiring dependable bursts of power.
The product arrives brand new and factory fresh, tested to meet or exceed OEM specifications and backed by a 1 year warranty for added confidence. Certifications from U.L. and CE demonstrate compliance with recognized safety standards, making this a trustworthy option for protecting your equipment.
Take action now to secure reliable backup power: order the SigmasTek SP12-5.5HR replacement UPS battery for your Belkin F6C1221-BAT and enjoy a high-performance, long-lasting battery solution with reliable warranty support.
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