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SigmasTek  |  SKU: BW-4909

Enerwatt WP38-12 UPS High Performance Replacement Battery 24.72 lb

25% off
New arrival
Sale price $122.99 USD Regular price $163.99
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Replacement battery for Enerwatt WP38-12 UPS unit
High rate discharge for consistent, reliable performance
Valve regulated, spill-proof design for durability
Low self-discharge and vibration resistant
U.L. Recognized and CE Certified with 1 year warranty
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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.

Category

UPS Batteries

Brand Replacement

SigmasTek

Volts & Amps

12 Volts | 35 AH

Terminal Type

Internal Thread

SigmasTek SP12-35 (12V 35AH) Replacement for Enerwatt WP38-12

Replace the battery in your Enerwatt WP38-12 Uninterruptible Power Supply (UPS) with this SigmasTek SP12-35 high-performance replacement. Designed specifically for UPS applications that require reliable bursts of power, this brand new, factory fresh battery meets or exceeds OEM expectations. It’s a great choice for users looking for a replacement UPS battery that combines robust construction, maintenance-free convenience, and dependable performance.

Key Specifications

  • Compatible Model: Enerwatt WP38-12
  • Brand: SigmasTek (SP12-35 IT)
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Terminal Type: Internal Thread
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated, Spill Proof Construction
  • Feature: Low Self-discharge
  • Feature: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Performance: Superior Performance
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

  • Durability: Valve-regulated and spill-proof construction combined with high vibration resistance ensures the battery withstands typical stresses in UPS enclosures and portable equipment.
  • Long Life: Low self-discharge characteristics contribute to an extended shelf life and sustained readiness—making this a dependable long-lasting battery for standby and intermittent use.
  • High Performance: The high rate discharge design supports rapid power delivery for short durations, perfectly suited for UPS scenarios where immediate power is essential — a true high-performance UPS battery replacement.
  • Maintenance-Free: Sealed, valve-regulated design means no watering or upkeep; internal thread terminals allow you to reuse existing hardware for a quick, safe installation.
  • Applications: Ideal for the Enerwatt WP38-12 UPS, emergency power supplies, and battery-powered tools that rely on a dependable backup source during outages or field operations.
  • Reliability & Testing: Each unit is factory-new and tested to meet or exceed OEM performance, ensuring consistent and reliable operation when protecting critical devices.

Get the power and reliability your Enerwatt WP38-12 requires — order this SigmasTek replacement UPS battery now. With superior performance, maintenance-free operation, and a 1 year warranty, it’s the smart choice to restore backup power and keep your systems protected.

Technical Specifications

Voltage12 Volts
Amp Hours35 AH
Terminal TypeInternal Thread
Length (in.)7.72
Width (in.)5.14
Height (in.)6.22
Weight (lb.)24.7

Product Highlights

  • Brand Replacement : Enerwatt WP38-12
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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