Dual-Lite 0120803 Compatible Replacement Battery
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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
12 Volts | 7.5 Ah
Terminal Type
F1
Replacement Dual-Lite 0120803 Emergency Lighting Battery - Dual-Lite 0120803
Replace your failing Dual-Lite 0120803 battery with a reliable, high-performance replacement battery designed for emergency lighting and safety systems. This Dual-Lite 0120803 replacement battery meets or exceeds OEM SLA specifications and delivers dependable performance and compatibility for critical applications. Built with spill-proof AGM technology and a maintenance-free design, this long-lasting battery is optimized for steady discharge and dependable recharge cycles, making it an ideal choice for emergency lighting, alarms, and other standby-power systems.
Key Specifications
- Model Compatibility: Dual-Lite 0120803
- Battery Type: Sealed Lead Acid (SLA) / Absorbent Glass Mat (AGM) Technology
- Design: Maintenance-Free, Spill Proof Construction
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
- Voltage: 12 Volts
- Capacity: 7.5 Ah
- Terminal Type: F1
- Brand / Manufacturer: SigmasTek
- Shipping: Orders for in-stock items typically ship within 24 hours
Benefits
This replacement battery offers superior durability and long life compared to older cells. The AGM construction and rugged, maintenance-free design resist vibration and leakage for reliable operation in emergency conditions. As a high-performance battery built to meet strict safety standards (U.L. and CE), it provides consistent power delivery during power outages and emergency events.
Typical applications include emergency lighting systems, security and fire alarm systems, home and garden backup devices, consumer electronics, and medical equipment. It also performs well in UPS units, emergency power backups, and portable tools that require a stable 12V SLA source. Whether you need a dependable standby battery for life-safety systems or a long-lasting battery for routine maintenance replacement, this Dual-Lite 0120803 replacement battery is engineered for dependable service.
Installation is straightforward thanks to common F1 terminal compatibility, and the brand-new, factory-fresh condition ensures maximum shelf life and immediate readiness. Backed by a one-year warranty and quality control to meet or exceed OEM specifications, this product gives peace of mind for both residential and commercial installations.
Ready to upgrade your system? Buy this Dual-Lite 0120803 replacement battery now and enjoy a high-performance, long-lasting battery with guaranteed compatibility and quick shipping. Purchase today to secure reliable emergency power when it matters most.
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