Genuine UB1280 (D5743) 12V 8Ah F1 Sealed Lead Acid Compatible Replacement Battery
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🔹 Please ensure the original battery model number is listed in our product description and that your device model number matches for compatibility.
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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 | 8 AH
Terminal Type
F1
Genuine UB1280 (D5743) Replacement Battery — Compatible with UB1280 (D5743)
The Genuine UB1280 (D5743) replacement battery is a 12 Volt 8 Amp F1 sealed lead acid (AGM) unit designed for dependable standby and cyclic applications. This OEM SLA AGM high-performance battery is brand new, factory fresh, UL listed, and backed by a minimum one year warranty. If you require a long-lasting battery for emergency lighting, alarms, or medical devices, the Genuine UB1280 (D5743) provides the reliability and performance you need.
Key Specifications
- Compatible model: UB1280 (D5743)
- Model name: Genuine UB1280 (D5743)
- Voltage: 12 Volt
- Amp-hours: 8 Amp
- Terminal type: F1
- Battery chemistry: Sealed Lead Acid (AGM)
- Brand: SigmasTek (Genuine UB1280 designation)
- Warranty: Minimum one year warranty
- Safety listing: UL listed
- Design features: Maintenance free, non-spillable, can operate in any orientation
- Life expectancy: Approximately 3-5 years in standby use
Benefits
- Durability: AGM construction and quality manufacturing ensure resistance to vibration and reliable service life in demanding environments.
- Long life: With a standby life expectancy of 3–5 years, this long-lasting battery is ideal for routinely serviced backup systems.
- High performance: Stable voltage delivery and dependable current handling make it a reliable high-performance battery for critical loads.
- Maintenance-free: The sealed, non-spill design eliminates the need for watering and minimizes maintenance tasks.
- Flexible installation: Can be mounted in virtually any orientation without risk of leakage, simplifying replacements in confined spaces.
- Common applications: Widely used in emergency lighting, security and fire alarm systems, UPS modules, medical equipment, consumer electronics, and home & garden devices.
- Confidence and support: UL listing and a one-year warranty provide assurance for both residential and commercial use, and knowledgeable customer service is available for assistance.
Choose the Genuine UB1280 (D5743) replacement battery for steady, dependable power in essential systems. Add this proven, high-performance battery to your cart now to secure long-lasting backup power and quick shipping.
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