National Battery NBX12-500 High Performance Compatible UPS Replacement Battery
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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 | 145 Ah
Terminal Type
Internal Thread
National Battery NBX12-500 - Compatible with Enersys
The National Battery NBX12-500 replacement battery is a trusted 12 Volt, 145 Ah unit made for compatibility with Enersys UPS systems. This replacement battery provides steady capacity and dependable terminal performance, making it an excellent choice for protecting critical equipment. When you need a reliable, long-lasting battery that performs in both standby and cyclic roles, the NBX12-500 offers the stability and quality expected in high-performance battery replacements.
Key Specifications
- Product Model: NBX12-500
- Replacement Type: UPS Battery (Replacement)
- Compatible Brand: Enersys
- Brand (Replacement): National Battery
- Voltage: 12 Volts
- Capacity: 145 Ah
- Terminal Type: Internal Thread
Benefits
The NBX12-500 is built for durability and consistent service life. As a long-lasting battery, it offers strong cycle performance and dependable float capability, reducing the need for premature replacement. Its internal thread terminals provide secure, low-resistance connections that help maintain system reliability under heavy use and during emergency discharges. This high-performance battery is designed to meet the demands of critical power applications.
Durability: Robust casing and reliable internal terminals help the NBX12-500 withstand the stresses of industrial and data center environments. Longevity: With a 145 Ah capacity at 12 Volts, this unit gives extended backup time for medium-sized UPS banks and systems where dependable reserve power is required. Performance: Engineered to deliver steady voltage under load and efficient recharge characteristics, this replacement battery supports both float and cyclic charging strategies.
Typical applications include uninterruptible power supplies, emergency power systems, telecom infrastructure, server room backups, and industrial control battery banks. It’s also suitable for renewable energy storage systems and other installations where a reliable replacement battery with known capacity and terminal type is necessary for safe, effective operation.
Ensure continuous protection for your critical systems—choose the National Battery NBX12-500 replacement battery for a high-performance, long-lasting battery solution compatible with Enersys. Purchase today to secure dependable backup power and minimize downtime.
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