IBM 90P4831 UPS High Performance 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 | 18 Ah
Terminal Type
Nut & Bolt
SigmasTek SP12-18HR Replacement Battery for IBM UPS 90P4831
This SigmasTek SP12-18HR replacement UPS battery is engineered as a direct-fit solution for the IBM UPS 90P4831, delivering reliable compatibility, superior performance, and proven reliability for critical backup systems. Designed for high-rate discharge UPS applications, this long-lasting battery provides the burst power needed when your IBM UPS 90P4831 experiences short-duration, high-load events. Please note that you should reuse all existing cables and hardware from your original configuration to connect this replacement UPS battery safely and correctly.
Key Specifications
- Brand: SigmasTek
- Model: SP12-18HR
- Voltage: 12 Volts
- Capacity: 18 AH (Amp-hours)
- Quantity: 1 battery (single replacement)
- Terminal Type: Nut & Bolt
- Design: High Rate Discharge Design
- Construction: Valve Regulated Spill Proof Construction
- Self-discharge: Low Self-discharge
- Durability: High Vibration Resistance
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
Benefits
- Durability and reliability: The SP12-18HR is built with valve-regulated, spill-proof construction and high vibration resistance to withstand demanding operating environments. This helps ensure a long-lasting battery for your IBM UPS 90P4831.
- High performance when it matters: Specifically designed as a high-rate discharge battery, this high-performance UPS battery supplies higher power output over short periods—ideal for handling surge events and maintaining critical loads during transfer or failure.
- Low maintenance and long shelf life: With low self-discharge characteristics and factory-fresh condition, you can expect dependable readiness and extended standby life compared to used or recycled alternatives.
- Safety and compliance: U.L. recognition and CE certification give you confidence that this replacement UPS battery meets established safety and quality benchmarks.
- Typical applications: Optimized for Uninterruptible Power Supply (UPS) units like the IBM UPS 90P4831, emergency power systems, and battery-powered tools that require dependable short-duration power delivery.
- Tested to OEM-level performance: Technically trained staff personally test each unit to meet or exceed OEM specifications for consistent operation and peace of mind.
Installation is straightforward when you reuse the original cables and hardware; if you need assistance choosing the correct replacement UPS battery for your IBM UPS 90P4831, call our customer service at or e-mail us for expert help. Orders for in-stock items typically ship within 24 hours.
Buy your SigmasTek SP12-18HR replacement UPS battery for the IBM UPS 90P4831 with confidence today — get a high-performance UPS battery and a long-lasting battery solution backed by a 1 year warranty. Add to cart now to ensure uninterrupted power protection.
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