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SigmasTek  |  SKU: BW-1581

Best Technologies LI 3.0KVA Compatible Replacement Battery Set 74.17 lb

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New arrival
Sale price $347.99 USD Regular price $454.99
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Package includes 3 high-quality 12V 35AH UPS batteries with NB terminal
Features durable AGM sealed Absorption Glass Mat technology for superior performance
UL certified to meet or exceed original manufacturer specifications for safety and reliability
Designed for guaranteed compatibility with Best Technologies LI 3.0KVA UPS units
1-year warranty ensures peace of mind and dependable backup power
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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

🔹 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.

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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 35 AH

Terminal Type

Nut & Bolt

Best Technologies LI 3.0KVA Replacement Batteries — Compatible with Best Technologies LI 3.0KVA

Replace the aging power source in your Best Technologies LI 3.0KVA with a reliable set of replacement UPS battery units designed for compatibility, performance, and peace of mind. This offering includes all 3 x 12V 35AH batteries required by the Best Technologies LI 3.0KVA and delivers the sealed AGM construction and UL certification you expect for dependable backup power. Whether you need consistent runtime for critical loads or dependable emergency backup, these batteries provide a high-performance UPS battery solution built to meet or exceed original manufacturer specifications.

Key Specifications

  • Package contains: 3 batteries
  • Volts: 12 V
  • Amp Hours: 35 AH
  • Weight: 74.1 Lbs
  • Length: 7.72 In
  • Width: 5.14 In
  • Height: 6.14 In
  • Terminal: NB
  • Terminal Type: Nut & Bolt
  • Chemistry: SLA (Sealed Lead Acid)
  • Technology: AGM (Absorption Glass Mat) Sealed Battery Technology
  • Certification: UL (Underwriters Laboratories) certified
  • Warranty: 1-year Warranty
  • Brand / Spec Sheet Reference: SigmasTek
  • Shipping Methods: UPS Ground and USPS
  • Shipping Speed: We ship in 1 business day for all in-stock items

Benefits

  • Durability — AGM Sealed Battery Technology resists vibration, reduces maintenance, and prevents spills for long-term reliability in UPS systems.
  • Long life — Built to meet or exceed original equipment specifications, these batteries deliver stable discharge and recharge cycles so your UPS sustains runtime when it matters most. This is a true long-lasting battery option for your Best Technologies LI 3.0KVA.
  • High performance — Rated 12V 35AH, these cells provide consistent current delivery under load—an ideal high-performance UPS battery for sensitive electronics and essential systems.
  • Guaranteed compatibility — Supplied as a complete set so installation follows the original configuration; reuse existing cables and hardware for straightforward replacement.
  • Safety & Certification — UL-certified construction and SLA chemistry offer trusted protection and predictable behavior in UPS and emergency power applications.
  • Typical applications — Designed primarily for UPS units like the Best Technologies LI 3.0KVA, these batteries also serve emergency lighting, telecom backup, medical support equipment, and portable power tools that rely on sealed lead-acid packs.
  • Fast shipping & support — Ships in one business day for in-stock items and backed by customer service via email, chat, or toll-free at (800) 657-1303.

Ready to restore reliable backup power to your Best Technologies LI 3.0KVA? Order this complete set of 3 replacement UPS battery units now for a high-performance, long-lasting battery solution and enjoy fast shipping and a 1-year warranty. Click to purchase and get protected power today.

Technical Specifications

Voltage12 Volts
Amp Hours35 AH
Terminal TypeNut & Bolt
Length (in.)7.72
Width (in.)5.14
Height (in.)6.22
Weight (lb.)74.1

Product Highlights

  • Brand Replacement : Best Technologies
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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