Best Power FERRUPS FE 4.3KVA UPS High Performance Replacement Battery Set 98.89 lb
— Ready to ship immediately
Check that your old battery model number and device model to match our description. This makes sure they work together.
We ship your order same day if you buy it before 4 PM EST.
Best Power FERRUPS FE 4.3KVA UPS High Performance Replacement Battery Set is backordered and will ship as soon as it is back in stock.
Let customers speak for us
Send Your Battery Photo
Expert Technician Help
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.
POST YOUR BATTERY IMAGE
Product & Solutions Expert
✉ sales@batteryweb.com
Battery Care Tips
Battery Care Tips
🔹 Getting Started
Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.
🔹 Keep It Healthy
Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.
Delivery and Shipping
Delivery and Shipping
🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.
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.
Volts & Amps
12 Volts | 35 AH
Terminal Type
Nut & Bolt
Replacement SigmasTek SP12-35 NB Batteries for Best Power FERRUPS FE 4.3KVA UPS
Protect your Best Power FERRUPS FE 4.3KVA with a premium replacement UPS battery set designed for high-demand, mission-critical environments. This SigmasTek SP12-35 NB 4-pack offers high-rate discharge performance, factory-fresh reliability, and construction built to last. If you need a long-lasting battery solution that restores full backup capability and delivers dependable short-term power, this set is engineered for your FE 4.3KVA UPS.
Key Specifications
- Included quantity: 4 batteries (battery set)
- Battery model: SigmasTek SP12-35 NB
- Voltage: 12 Volts
- Capacity: 35 AH (amp-hours)
- Terminal type: Nut & Bolt
- Design: High Rate Discharge Design
- Construction: Valve Regulated Spill Proof Construction
- Self-discharge: Low Self-discharge
- Durability: High Vibration Resistance
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
- Installation note: Must use all existing cables and hardware from the original configuration to connect the new UPS batteries
Benefits
This replacement battery set offers the durability and consistent output that high-performance UPS systems demand. The high rate discharge design ensures the Best Power FERRUPS FE 4.3KVA can handle brief, intensive power draws without compromising stability. Valve-regulated, spill-proof construction reduces maintenance and enhances safety during installation and operation, while low self-discharge keeps the batteries ready after storage or periods of low use.
High vibration resistance improves longevity for rack-mounted or mobile deployments, helping prevent premature degradation from mechanical stress. As a high-performance UPS battery option, these SigmasTek batteries are factory tested and certified (U.L. and CE) to provide reliable, repeatable performance in critical applications. Use them for Uninterruptible Power Supply (UPS) systems, emergency backup installations, and battery-powered tools that require rapid power delivery.
The included 1 year warranty and brand-new condition give you confidence in the product’s quality and readiness. Keep in mind that installation requires reuse of your original cables and hardware — follow your UPS manufacturer’s guidance to ensure safe connection and operation. If you need a long-lasting battery replacement that balances safety, performance, and value, this set is an excellent fit for the FE 4.3KVA.
Ready to restore reliable backup power to your Best Power FERRUPS FE 4.3KVA? Purchase this high-performance, long-lasting replacement UPS battery set now and maintain continuous protection for your equipment.
Technical Specifications
Product Highlights
- Brand Replacement : Best Power
- Manufacturer: SigmasTek
- Product Type: UPS Batteries
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
