Genesis NP18-12 High Performance Compatible 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 | 18 Ah
Terminal Type
Nut & Bolt
Genesis NP18-12 Replacement Battery — Compatible with Genesis NP18-12
Replace your worn or failing Genesis NP18-12 with a reliable, high-quality replacement battery engineered for consistent performance and dependable reliability. This Genesis NP18-12 replacement battery is designed to meet or exceed OEM SLA specifications, providing a high-performance battery option for applications that demand uninterrupted power. Whether you need dependable backup for emergency systems or a long-lasting battery for routine use, this Genesis NP18-12 delivers the compatibility and uptime you expect.
Key Specifications
- Model: Genesis NP18-12
- Type: Rechargeable Sealed Lead Acid (SLA) battery
- Chemistry: Absorbent Glass Mat (AGM) Technology
- Design: Maintenance-Free with Spill Proof Construction
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
- Brand: SigmasTek
- Voltage: 12 Volts
- Capacity: 18 Ah
- Terminal Type: Nut & Bolt
Benefits
Built with AGM technology, this Genesis NP18-12 replacement battery offers superior vibration resistance and enhanced charge acceptance compared to traditional flooded batteries. The maintenance-free, spill-proof design reduces downtime and eliminates the need for regular fluid checks, making it an ideal long-lasting battery for both professional and consumer environments. As a high-performance battery, it provides steady output for critical loads and reliable recharge cycles to extend service life.
Durability is designed into every unit: robust construction and sealed terminals protect internal components from environmental stress, while U.L. and CE certifications confirm adherence to strict safety and quality standards. Typical applications include UPS systems, emergency power backup, alarm and security systems, medical equipment, and portable tools that require a dependable 12 Volt 18 Ah power source. The Nut & Bolt terminal style ensures secure connections in installations where vibration or movement could otherwise loosen terminals.
Choosing this Genesis NP18-12 replacement battery means investing in a proven, long-lasting battery solution that balances performance with value. It is a high-performance battery option for technicians, facility managers, and consumers who need a trustworthy power source that installs easily and performs consistently.
Ready to restore reliable power? Add the Genesis NP18-12 replacement battery to your cart now and enjoy a dependable, long-lasting battery backed by a 1 Year Warranty. Purchase today to ensure continuous protection for your critical equipment.
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