C&D Dynasty UPS12-490MR UPS Compatible 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
C&D Dynasty UPS12-490MR Replacement UPS Battery – Compatible with UPS12-490MR
Designed for dependable compatibility and peak performance, this replacement C&D Dynasty UPS12-490MR rechargeable sealed lead acid battery delivers reliable standby and cycle service for UPS systems. Built with a high-rate discharge design, this high-performance UPS battery offers consistent power output under heavy load and the durability needed for emergency power and critical UPS applications. If you need a replacement UPS battery that balances long-lasting battery life with proven reliability, the UPS12-490MR compatible unit is engineered to meet those demands.
Key Specifications
- Model: UPS12-490MR
- Type: Rechargeable sealed lead acid battery (Absorbent Glass Mat Technology)
- High-rate discharge design
- 491 Watts per cell on 15-minute rate at 1.67 Volts
- Self-discharge: < 3% per month
- Expected standby life: Up to 10 years
- Cycle service: Up to 300 cycles at 100% discharge
- No-leak (spill proof) construction — can be operated in any position
- Case: ABS (UL94 V-0) flame retardant case
- Warranty: 3 Year Warranty
- Certifications: UL Listed
- Brand descriptors in product text: Enersys; C&D Dynasty
- Voltage: 12 Volts
- Capacity: 145 Ah
- Terminal: Internal Thread
Benefits
- Durability: Constructed with AGM technology and an ABS flame-retardant case, this unit resists vibration and environmental stress for dependable long-term operation.
- Long life: With a self-discharge rate under 3% per month and up to 10 years expected standby life, this long-lasting battery is ideal for standby UPS systems and emergency power installations.
- High performance: The high-rate discharge design and 491 W per cell rating at the 15-minute rate ensure the battery can sustain heavy loads—perfect for demanding UPS and critical backup systems.
- Versatile applications: Suited for UPS systems, emergency lighting, telecom, medical backup, and other power-critical applications requiring a high-performance UPS battery.
- Safe, maintenance-free operation: Spill-proof, leak-proof design allows operation in any orientation without maintenance, simplifying installation and service.
- Tested and packaged professionally: Each replacement UPS battery is inspected and packaged with strict quality control to ensure reliability out of the box.
Ready to upgrade your backup power? Order this replacement UPS battery for the UPS12-490MR today and benefit from a high-performance UPS battery with proven long-lasting battery life and a 3-year warranty. Purchase now to secure reliable backup power and fast shipping for in-stock items.
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