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SigmasTek  |  SKU: BW-3956

ONEAC ONE300D UPS Compatible Replacement Battery

Sale price $14.91 USD Regular price $18.84
Shipping calculated at checkout.

➤ OEM SLA battery specs met for ONEAC ONE300D replacement

➤ AGM technology delivers stable, high discharge capacity

➤ Maintenance-free with spill-proof design for safety

➤ U.L. and CE certified for trusted performance

➤ 1 year warranty included


📦🚀 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 | 7.5 Ah

Terminal Type

F2

SigmasTek 12V 7.5Ah Replacement Battery for ONEAC ONE300D

Designed for direct fit and optimal performance, this SigmasTek replacement battery is engineered to meet or exceed the OEM specifications for the ONEAC ONE300D Uninterruptible Power Supply (UPS). Whether you need reliable standby power for critical equipment or a robust power source for battery-operated tools, this high-performance UPS battery delivers consistent output, maintenance-free operation, and proven safety certifications for peace of mind. The combination of Absorbent Glass Mat (AGM) technology and a high-rate discharge design ensures the ONEAC ONE300D stays protected during outages and power fluctuations.

Key Specifications

  • Compatible Model: ONEAC ONE300D
  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 7.5 Ah
  • Terminal Type: F2
  • Battery Type: Sealed Lead Acid (SLA) with AGM Technology
  • Design: High Rate Discharge Design
  • Maintenance: Maintenance-Free with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Typical Applications: Emergency Power Supply, Battery Powered Tools

Benefits

  • Durability: Built using rugged AGM construction, this replacement UPS battery withstands repeated charge/discharge cycles and offers superior vibration resistance compared to traditional flooded designs.
  • Long Life: The maintenance-free design and quality manufacturing practices contribute to a long-lasting battery that reduces downtime and replacement frequency for your ONEAC ONE300D UPS.
  • High Performance: The high-rate discharge design delivers rapid current when your UPS demands it, providing reliable ride-through time for critical electronics during power disturbances.
  • Safety & Certifications: U.L. recognition and CE certification provide assurance that this battery meets established safety and performance standards for use in UPS and emergency power systems.
  • Versatile Applications: Ideal for uninterruptible power supplies, emergency lighting and backup systems, and battery powered tools that require dependable 12V power from a long-lasting battery.
  • Easy Installation: F2 terminal configuration ensures a secure connection and straightforward replacement procedure for technicians and end-users alike.

If you are looking for a reliable, high-quality replacement UPS battery for your ONEAC ONE300D, this SigmasTek 12V 7.5Ah battery offers the perfect balance of performance, safety, and value. Order now to restore trusted backup power and keep critical systems running smoothly.



Payment & Security

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