National C61C 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
6 Volts | 1.2 Ah
Terminal Type
F1
National Battery C61C Replacement Battery — Compatible with National Battery C61C
When reliability matters, the National Battery C61C replacement battery offers OEM-level compatibility and dependable performance for your critical systems. This high-performance replacement battery is manufactured to meet or exceed the original SLA specifications for the National Battery C61C, delivering a maintenance-free, spill-proof design with AGM technology for consistent, long-lasting operation. Ideal as a drop-in replacement, it provides the power and safety you need in backup and portable applications.
Key Specifications
- Compatible Model: National Battery C61C
- Replacement Brand: SigmasTek
- Battery Type: Rechargeable Sealed Lead Acid (SLA)
- Technology: Absorbent Glass Mat (AGM)
- Voltage: 6 Volts
- Capacity: 1.2 Ah
- Terminal Type: F1
- Design: Maintenance-Free, Spill Proof
- Certifications: U.L. Recognized, CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
Benefits
The C61C replacement battery is built for extended service life and dependable operation. AGM construction increases charge acceptance and reduces the risk of leakage while delivering a stable power source under fluctuating loads. As a maintenance-free, spill-proof unit, it minimizes downtime and maintenance time, making it an excellent choice for users seeking a long-lasting battery solution.
Safety certifications (U.L. and CE) provide additional assurance that the battery meets recognized performance and manufacturing standards. This high-performance battery gives reliable output for critical systems and is well suited for applications including UPS backup, emergency lighting, alarm and security systems, small medical devices, and portable power tools.
- Reliable AGM chemistry for longevity and consistent recharge cycles
- Maintenance-free, sealed, and spill-proof for safe handling
- U.L. and CE certified for trusted quality and safety
- Perfect for UPS systems, emergency power, security devices, and portable equipment
- Compact form with F1 terminal for easy replacement installation
Replace your aging pack with the National Battery C61C replacement battery today to ensure uninterrupted power and performance. Purchase now and benefit from a long-lasting, high-performance battery backed by a 1 year warranty.
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