Best Technologies LI 1.7KVA UPS High Performance Replacement Battery Set
⚠️ 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 | 35 AH
Terminal Type
Nut & Bolt
Replacement SigmasTek SP12-35 NB Batteries for Best Technologies LI 1.7KVA UPS
Keep your Best Technologies LI 1.7KVA Uninterruptible Power Supply operating at peak performance with this compatible replacement UPS battery set. These two factory-fresh SigmasTek SP12-35 NB batteries are designed to restore reliable backup power, provide consistent discharge performance under load, and deliver dependable service in demanding UPS and emergency power applications. Whether you need a trusted long-lasting battery for home servers, network gear, or critical office systems, this replacement UPS battery set offers the reliability and tested performance you expect from high-quality sealed lead-acid technology.
Key Specifications
- Quantity: 2 batteries per 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 (sealed)
- Features: Low Self-discharge, High Vibration Resistance, Superior Performance
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year
- Compatible With: Best Technologies LI 1.7KVA UPS
Benefits
These SigmasTek batteries are engineered as a high-performance UPS battery solution for high rate discharge applications, which makes them ideal when your Best Technologies LI 1.7KVA UPS must supply higher current for short durations. The valve-regulated, spill-proof construction reduces maintenance and risk, while low self-discharge helps preserve capacity during storage. Rugged design and high vibration resistance increase durability for installations that may experience movement or vibration. As a long-lasting battery option, this replacement set is tested by experienced technicians to meet or exceed OEM specifications so you can trust consistent run times and reliable recharge behavior.
Typical applications include Uninterruptible Power Supply (UPS) units, emergency power supply systems, and battery-powered tools. Use this set to restore runtime for networking equipment, small data centers, VoIP systems, medical devices, POS terminals, and other critical electronics that depend on a consistent backup source. The nut & bolt terminal makes installation secure when reusing existing cables and hardware from your original configuration.
Because this is a true replacement UPS battery set specifically matched to the Best Technologies LI 1.7KVA model, you get a high-performance UPS battery that provides dependable protection for your equipment and a long-lasting battery life backed by a one-year warranty.
Ready to replace the aging cells in your Best Technologies LI 1.7KVA UPS? Order this SigmasTek SP12-35 NB replacement UPS battery set today and restore reliable backup power—calls to our customer service at are welcome if you need assistance. Buy with confidence and get fast shipping on in-stock items.
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