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SigmasTek  |  SKU: BW-5348

CyberPower CS50U48V High Performance SLA Replacement Battery

Sale price $54.00 USD Regular price $78.30
Shipping calculated at checkout.

➤ Absorbent Glass Mat (AGM) technology for leak resistance

➤ High rate discharge design for reliable power bursts

➤ Maintenance-free, spill-proof construction for convenience

➤ U.L. recognized and CE certified for safety compliance

➤ Brand new, factory fresh with 1 year warranty


📦🚀 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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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 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

Replacement CyberPower CS50U48V UPS Battery - Compatible with CyberPower CS50U48V

Restore dependable backup power for your CyberPower CS50U48V with this purpose-built replacement UPS battery. Meeting or exceeding OEM SLA specifications, this battery is engineered for consistent performance, safety, and compatibility—providing a reliable solution for the CS50U48V to protect your equipment from unexpected outages.

Key Specifications

  • Technology: Absorbent Glass Mat (AGM) Technology
  • Design: High Rate Discharge Design
  • Maintenance: Maintenance-Free Design with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Brand / Model: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 18 Ah
  • Terminal Type: Nut & Bolt
  • Battery Type: SLA Battery
  • Compatibility: CyberPower CS50U48V

Benefits

This high-performance UPS battery provides the long-lasting battery characteristics necessary for critical backup applications. AGM construction ensures a maintenance-free, spill-proof experience with excellent charge acceptance and life cycle performance. The high rate discharge capability supports rapid power delivery under load, making it suitable for UPS operation, emergency power systems, and battery-powered tools where consistent output is required.

Durability is built into the design: robust terminals, factory-fresh condition, and recognized safety certifications (U.L. and CE) give you peace of mind when replacing batteries in mission-critical environments. The nut & bolt terminals make installation straightforward, reducing the time your CyberPower CS50U48V is offline and simplifying maintenance tasks.

Whether for home offices, small business servers, telecom equipment, or emergency lighting, this replacement UPS battery is engineered to perform reliably over repeated cycles. The combination of high-quality AGM technology, maintenance-free construction, and warranty protection ensures you receive a dependable power source that meets your operational needs.

Ready for reliable backup power? Order this replacement UPS battery for your CyberPower CS50U48V today and secure a dependable, high-performance replacement with confidence.


Payment & Security

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