Upsonic UPS 300 UPS Compatible Replacement Battery Set
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⚠️ 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 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
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
⚠️ 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 for Upsonic UPS 300
Engineered for compatibility with the Upsonic UPS 300 Uninterruptible Power Supply (UPS), this replacement battery set provides dependable backup power, consistent performance, and industrial-grade reliability. These brand new SigmasTek SP6-12HR batteries deliver the power profile required by high-rate discharge applications while offering the peace of mind that comes with factory-fresh cells and a backed warranty. If you need a reliable replacement UPS battery for routine service or to restore runtime after an event, this kit is designed to meet those needs.
Key Specifications
- Includes: 2 SigmasTek SP6-12HR batteries
- Voltage: 6 Volts
- Capacity: 12 AH (amp-hours)
- 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
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
- Installation Note: Use all existing cables and hardware from your original configuration to connect the new UPS batteries
Benefits
This high-performance UPS battery set was selected for dependable, predictable behavior under load. The high rate discharge design is ideal for applications where the Upsonic UPS 300 must supply elevated current for short periods, ensuring your critical equipment stays online during transitions and outages. The valve-regulated, spill-proof construction enhances safety and simplifies installation and handling, while low self-discharge means these batteries hold charge well in storage and are ready when installed.
Durability is enhanced thanks to high vibration resistance, making these batteries suitable for a wide range of environments including data centers, telecom closets, medical support stations, and mobile installations. Certified by U.L. and CE, the pack meets recognized safety and quality standards, giving you confidence in both daily and emergency use. As a long-lasting battery solution, routine maintenance intervals are predictable and replacement becomes straightforward with this direct-fit, factory-tested kit.
Typical uses include Uninterruptible Power Supply (UPS) systems like the Upsonic UPS 300, emergency power applications, and battery-powered tools that demand reliable burst power. For customers seeking a cost-effective, tested replacement UPS battery that performs on par with OEM expectations, this SigmasTek set is an excellent choice.
Don’t wait for an unexpected outage to reveal depleted cells. Buy your replacement batteries for the Upsonic UPS 300 today to ensure uninterrupted protection and fast, reliable shipping.
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