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SigmasTek  |  SKU: BW-6680

SDC 636RF 12V 7Ah Compatible Replacement Battery For 6A Power Supply - 4-Pack

Sale price $73.82 USD Regular price $97.68
Shipping calculated at checkout.

➤ Compatible with SDC 636RF 6 Amp Power Supply systems

➤ Ensures reliable and consistent power for access control

➤ Meets or exceeds OEM quality standards for performance

➤ Maintenance-free sealed lead-acid (SLA) design for convenience

➤ 4-pack offers cost-effective backup and extended service life


📦🚀 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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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 | 7.5 Ah

Terminal Type

F2

12V 7Ah Replacement Battery (4-Pack) for SDC 636RF 6 Amp Power Supply

Maintain uninterrupted access control operation with this 4-pack of 12V 7Ah replacement batteries designed for the SDC 636RF 6 Amp Power Supply. Engineered to meet or exceed OEM specifications, these batteries provide the reliable reserve power needed to support locks, sensors, and control panels during outages or peak demand. This cost-effective multi-pack ensures you have backup power on hand and delivers the consistent performance required for security and access control systems.

Key Specifications

  • Voltage: 12V
  • Capacity: 7Ah
  • Compatibility: Specifically designed for SDC 636RF 6 Amp Power Supply systems
  • Pack Quantity: 4-pack
  • Design: Maintenance-free, sealed lead-acid (SLA)
  • Performance: Meets or exceeds original manufacturer specifications

Benefits

  • Durability: The sealed lead-acid construction offers robust performance in enclosed power modules and control cabinets, resisting leakage and minimizing maintenance needs over its service life.
  • Long life: These long-lasting battery units are designed to provide consistent backup capacity for access control systems, reducing the frequency of disruptive replacements and ensuring readiness during power interruptions.
  • High performance: Built to deliver the reliable power profile expected by SDC 636RF power supplies, these batteries support the steady current draw required for electromagnetic locks, sensors, and controller boards.
  • Maintenance-free convenience: With sealed lead-acid design, routine maintenance is not required—installation is straightforward and safe for indoor equipment enclosures.
  • Value and redundancy: The 4-pack offers economical value for system administrators and installers, enabling full replacements or staged swaps so systems maintain redundancy and uptime.
  • Typical applications: Ideal for access control backup systems, UPS units for small electronics, emergency power for low-to-medium draw devices, alarm panels, and field tools that accept a 12V SLA source.

Ensure your SDC 636RF power supply has reliable backup with this 4-pack of high-performance, maintenance-free 12V 7Ah replacement batteries. Purchase now to keep your access control system protected and operational.


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