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SigmasTek  |  SKU: BW-4885

Douglas Guardiang DG12-32 UPS Compatible Replacement Battery

Sale price $92.48 USD Regular price $134.10
Shipping calculated at checkout.

➤ High Rate Discharge Design provides reliable emergency power

➤ Maintenance-Free with Absorbent Glass Mat (AGM) technology

➤ Spill Proof Construction for safe indoor use

➤ U.L. Recognized and CE Certified for safety and quality

➤ Factory Fresh and backed by a 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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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 | 35 AH

Terminal Type

Nut & Bolt

SigmasTek SP12-35 NB Replacement for Douglas Guardiang DG12-32

Ensure reliable backup for your Douglas Guardiang DG12-32 with the SigmasTek SP12-35 NB replacement UPS battery (12 Volts, 35 AH). This high-performance UPS battery is engineered to restore the DG12-32’s ability to handle short-duration, high-power demands while providing long-lasting reliability and safe, maintenance-free operation. For a quick installation, simply reuse the original cables and hardware when connecting the new unit.

Key Specifications

  • Battery Model: SigmasTek SP12-35 NB
  • Compatible With: Douglas Guardiang DG12-32
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • 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: Use all existing cables and hardware from original configuration
  • Brand: SigmasTek

Benefits

This replacement UPS battery combines rugged construction with dependable performance to meet the needs of Douglas Guardiang DG12-32 systems. The high rate discharge design makes it a high-performance UPS battery capable of supplying elevated power for short intervals—ideal for UPS systems that must support critical equipment through transitions or outages. Valve-regulated, spill-proof construction reduces maintenance and improves safety, while low self-discharge helps preserve stored capacity and extends usable life.

High vibration resistance enhances durability in applications exposed to movement or mechanical stress, increasing the battery’s effective lifespan. With U.L. recognition and CE certification, the battery meets established safety and quality standards. This SigmasTek unit is a versatile, long-lasting battery choice for uninterruptible power supply units, emergency power systems, and battery-powered tools that require reliable performance under load. Each battery is tested to ensure it meets or exceeds OEM specifications, giving you confidence in value and functionality.

For facilities, IT closets, or field equipment reliant on backup power, this replacement UPS battery restores functionality affordably and effectively without sacrificing quality or safety.

Order your replacement UPS battery for Douglas Guardiang DG12-32 today—fast shipping, tested quality, and a 1 year warranty mean you can trust this long-lasting battery to protect your equipment.


Payment & Security

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