Universal Power UB1208 (45789) High Performance 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 | 0.8 Ah
Terminal Type
Special Connector
Universal Power UB1208 (45789) Replacement Battery — Compatible with SigmasTek
Designed for dependable power when you need it most, the Universal Power UB1208 (45789) replacement battery delivers reliable compatibility with SigmasTek devices. This compact 12 Volt, 0.8 Ah battery is engineered to provide steady performance and dependable uptime across a range of small UPS systems, alarm panels, handheld instruments, and emergency devices. If you’re searching for a high-performance battery that fits the form factor and power requirements of your SigmasTek equipment, this long-lasting battery is an ideal choice.
Key Specifications
- Manufacturer: SigmasTek
 - Brand Replacement: Universal Power
 - Model: UB1208 (45789)
 - Voltage: 12 Volts
 - Amp Hours: 0.8 Ah
 - Length: 3.78 in.
 - Width: 0.98 in.
 - Height: 2.44 in.
 - Weight: 1.65 lb.
 
Benefits
The Universal Power UB1208 (45789) replacement battery combines compact dimensions with robust construction to deliver a high-performance battery solution for small form-factor power needs. Built for durability, this battery offers consistent output across charge cycles so your SigmasTek-compatible equipment remains operational when it matters. Its 0.8 Ah capacity provides sufficient energy for standby power in UPS units, emergency lighting, security systems, small medical devices, and portable test tools.
Because it’s designed as a direct replacement, installation is straightforward, minimizing downtime and maintenance. The UB1208 (45789) is a long-lasting battery option for technicians and end users who require dependable reserve power. Expect improved reliability over worn-out factory batteries and predictable behavior in cyclic or standby applications. Use this replacement battery in UPS backups, emergency power modules, alarm systems, instrumentation, and other small electronic devices.
Choosing a high-performance battery like the Universal Power UB1208 (45789) means fewer battery swaps and more uptime for critical systems. The compact size makes it an excellent fit where space is limited without sacrificing quality or output.
Ready to upgrade your power reliability? Add the Universal Power UB1208 (45789) replacement battery to your cart now for fast, dependable performance with your SigmasTek equipment.
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Payment & Security
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