12 Volt 18 Amp NB High Rate Sealed Lead Acid Compatible Replacement Battery
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🔹 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
12 Volt 18 Amp NB High Rate Sealed Lead Acid Battery — Compatible with Sealed Lead Acid 12 Volt 18 Amp HR model
This replacement battery is engineered to deliver dependable power for devices that require a robust Sealed Lead Acid 12 Volt 18 Amp HR model. The 12 Volt 18 Amp NB High Rate Sealed Lead Acid Rechargeable battery combines AGM technology, maintenance-free construction, and factory-fresh quality to provide a high-performance battery option you can trust. Designed to meet or exceed OEM SLA battery specifications, this replacement battery offers reliable, long-lasting battery performance for emergency systems, UPS units, and other mission-critical applications.
Key Specifications
- Voltage: 12 Volts
- Capacity: 18 Ah (Amp-hours)
- Terminal Type: NB (Nut & Bolt)
- Technology: Absorbent Glass Mat (AGM)
- Design: Maintenance-Free, Spill Proof Construction
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
- Brand: SigmasTek
Benefits
- Durability: Built with AGM technology and spill-proof construction for rugged, maintenance-free operation in a variety of environments.
- Long Life: Designed to provide dependable standby life and consistent cycle performance, offering a long-lasting battery solution for extended service life.
- High Performance: A high-rate SLA design ensures strong discharge capability for devices that demand bursts of power, making it a true high-performance battery for critical loads.
- Versatile Applications: Ideal for UPS systems, emergency lighting, security and fire alarm systems, medical equipment, portable power tools, and other emergency power and backup applications.
- Compatibility & Reliability: Guaranteed 100% compatibility with Sealed Lead Acid 12 Volt 18 Amp HR model and meets or exceeds OEM specifications for worry-free replacement.
Replace your old or failing battery with this reliable 12 Volt 18 Amp NB High Rate replacement battery and get confident, long-lasting battery performance for critical systems. If you need a high-performance battery that combines durability and reliable power delivery, add this factory-fresh SigmasTek battery to your cart today and secure dependable backup power.
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Payment & Security
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