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SigmasTek  |  SKU: BW-4089

CyberPower BF685 High Performance SLA Replacement Battery

Sale price $14.91 USD Regular price $18.84
Shipping calculated at checkout.

➤ OEM SLA replacement battery for CyberPower BF685 model

➤ Advanced AGM technology for optimal power delivery

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

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

➤ Includes 1-year warranty and full compatibility guarantee


📦🚀 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 | 7.5 Ah

Terminal Type

F2

SigmasTek 12V 7.5Ah F2 SLA Replacement Battery — Compatible with CyberPower BF685

Ensure uninterrupted operation of your CyberPower BF685 with a premium replacement UPS battery that matches or surpasses OEM standards. The SigmasTek 12V 7.5Ah F2 SLA battery is a high-performance UPS battery built with AGM technology and a spill-proof, maintenance-free case to deliver safe, dependable backup power. When you need a long-lasting battery for emergency readiness, this model provides reliable performance and direct compatibility.

Key Specifications

  • Brand: SigmasTek
  • Model: 12 Volts 7.5 Ah F2 SLA Battery
  • Voltage: 12V
  • Capacity: 7.5 Ah
  • Terminal: F2
  • Battery Type: Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM)
  • Design: High Rate Discharge
  • Maintenance: Maintenance-Free, Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatible UPS Model: CyberPower BF685

Benefits

  • Dependable Durability: With AGM construction and a sealed, spill-proof housing, this replacement UPS battery resists leaks and performs reliably in UPS and backup environments.
  • Extended Service Life: Designed for repetitive charge cycles and consistent capacity retention, the battery offers long-lasting battery performance to reduce maintenance intervals.
  • Superior Performance: The high rate discharge design supports the immediate power needs typical of UPS systems, protecting your equipment from abrupt power loss.
  • Certified Quality: U.L. Recognition and CE certification indicate compliance with recognized safety and quality benchmarks for consumer and commercial use.
  • Application Flexibility: Well-suited for UPS backup in the CyberPower BF685, emergency power supply setups, and compatible battery-powered tools requiring a 12V 7.5Ah SLA with F2 terminal.
  • Easy, Accurate Replacement: Guaranteed compatibility with the CyberPower BF685 makes replacement straightforward—restore full backup capability quickly with this high-performance UPS battery.

Ready to replace your old battery? Order the SigmasTek replacement UPS battery for the CyberPower BF685 today and get reliable, long-lasting battery performance with a 1 year warranty and factory-fresh quality.



Payment & Security

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