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SigmasTek  |  SKU: BW-16355

National C02A Compatible Replacement Battery

Sale price $16.99 USD Regular price $22.43
Shipping calculated at checkout.

➤ Compatible replacement for National Battery C02A model

➤ Utilizes advanced Absorbent Glass Mat (AGM) technology

➤ Maintenance-free with spill-proof, sealed design

➤ U.L. recognized and CE certified for safety and quality

➤ Brand new, factory fresh with 1-year warranty included


📦🚀 FAST SHIPPING: Usually ships same day if ordered before 2 PM EST

⚠️ 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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Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.
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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

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: 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 | 2.3 Ah

Terminal Type

F1

National Battery C02A Replacement Battery — Compatible with National Battery C02A

The National Battery C02A replacement battery is a direct-fit, factory fresh solution for devices specified for the C02A model. Combining Absorbent Glass Mat (AGM) technology with maintenance-free, spill-proof construction, this replacement battery is built to provide stable, reliable power. If you want a high-performance battery that delivers dependable standby power and a long-lasting battery life for critical systems, the National Battery C02A replacement is a smart and affordable choice.

Key Specifications

  • Model: National Battery C02A (Replacement)
  • Voltage: 12 Volts
  • Capacity: 2.3 Ah
  • Chemistry: Absorbent Glass Mat (AGM) Technology
  • Design: Maintenance-Free with Spill Proof Construction
  • Terminal Type: F1
  • Brand: SigmasTek
  • Condition: Brand New, Factory Fresh
  • Certifications: U.L. Recognized and CE Certified
  • Warranty: 1 Year Warranty

Benefits

  • Robust construction: AGM cells and sealed design offer enhanced safety and resistance to leakage, making this replacement battery suitable for varied mounting orientations and frequent handling.
  • Long-lasting battery life: Manufactured to meet OEM SLA standards, the National Battery C02A long-lasting battery supports dependable reserve capacity for UPS and backup systems.
  • High performance: Stable voltage output and reliable recharge characteristics position this model as a high-performance battery for both standby and cyclic applications.
  • Hassle-free operation: Maintenance-free design minimizes service needs—ideal for installations where routine maintenance is difficult or undesirable.
  • Certified quality: U.L. recognition and CE certification confirm that this replacement battery adheres to recognized safety and performance benchmarks.
  • Versatile uses: Widely used in UPS units, emergency power and lighting, alarm and security systems, small medical equipment, and various portable tools that require compact 12V power sources.
  • Warranty support: Supplied brand new and backed by a 1 year warranty to protect your investment and ensure confidence at installation.

Replace your failing battery now with the National Battery C02A replacement battery for dependable backup and consistent performance. Click to purchase this high-performance battery and restore reliable power to your equipment today.


Payment & Security

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