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SigmasTek  |  SKU: BW-2132

ONEAC ON900J-SN UPS Compatible Replacement Battery Set

Sale price $65.99 USD Regular price $96.19
Shipping calculated at checkout.

➤ Includes 4 brand new SigmasTek SP6-12HR batteries (6V 12AH)

➤ High rate discharge design supports emergency power supply

➤ Valve regulated spill proof for leak-free operation

➤ Low self-discharge and high vibration resistance for durability

➤ Certified and comes with 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

6 Volts | 12 Ah

Terminal Type

F2

SigmasTek SP6-12HR Replacement Battery Set — ONEAC ON900J-SN UPS

Maintain continuous protection for your ONEAC ON900J-SN with this premium replacement UPS battery pack. Designed for dependable performance and engineered to deliver rapid, reliable power during outages, this set restores the backup capability of your UPS with a high-performance UPS battery option that emphasizes durability and long-term reliability.

Key Specifications

  • Compatible UPS Model: ONEAC ON900J-SN
  • Battery Count: 4 batteries per set
  • Battery Model: SigmasTek SP6-12HR
  • Voltage: 6 Volts
  • Capacity: 12 AH (amp-hours)
  • 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: Requires use of all existing cables and hardware from original configuration

Benefits

  • Robust and spill-proof: Valve-regulated construction reduces maintenance and improves safety in enclosed UPS cabinets while resisting leakage and corrosion.
  • Engineered for longevity: Low self-discharge properties and factory-fresh cells contribute to extended standby life and consistent runtime — a reliable, long-lasting battery for ongoing protection.
  • Peak power when you need it: The high rate discharge design supports short-duration high-demand events, delivering the surge capability required by sensitive electronics and critical loads.
  • Quality assurance: Each replacement UPS battery is inspected and tested to ensure performance that meets or exceeds OEM expectations for the ONEAC ON900J-SN.
  • Multi-purpose use: Ideal for UPS units, emergency power systems, and battery-powered tools where dependable power delivery is essential.
  • Certified safety: U.L. and CE certifications help ensure safe, code-compliant installations in professional and residential settings.

Restore dependable backup power to your ONEAC ON900J-SN today. Order this SigmasTek SP6-12HR replacement UPS battery pack now for a high-performance UPS battery solution and fast shipping on in-stock items. Protect your equipment with a proven, long-lasting battery — buy now.


Payment & Security

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