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SigmasTek  |  SKU: BW-12435

Emergi-Lite RSM36 High Performance Replacement Battery

Sale price $22.11 USD Regular price $25.71
Shipping calculated at checkout.

➤ Compatible replacement for Emergi-Lite RSM36 emergency lighting battery

➤ Uses Absorbent Glass Mat (AGM) technology for enhanced performance

➤ Maintenance-free and spill-proof construction for safety and convenience

➤ U.L. Recognized and CE Certified for quality assurance

➤ Comes brand new with a 1-year warranty for reliability


📦🚀 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

6 Volts | 12 Ah

Terminal Type

F1

Emergi-Lite RSM36 Replacement Battery — Compatible with Emergi-Lite RSM36

This Emergi-Lite RSM36 replacement battery is engineered for reliable compatibility, consistent performance, and long-term reliability in emergency lighting systems. Designed to meet or exceed OEM SLA specifications, this high-performance battery offers maintenance-free operation and dependable power when you need it most. If you are looking for a replacement battery for your Emergi-Lite RSM36, this unit provides a direct-fit solution with proven technology and certified safety standards.

Key Specifications

  • Battery Type: Rechargeable Sealed-Lead-Acid (SLA) Emergency Lighting Battery
  • Technology: 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: 6 Volts
  • Capacity: 12 Ah
  • Terminal Type: F1
  • Compatible Model: Emergi-Lite RSM36

Benefits

This replacement battery delivers durable, high-reliability power in a compact package. AGM construction provides superior vibration resistance and low internal resistance for fast recharge and consistent output, making it a high-performance battery ideal for emergency lighting fixtures. The maintenance-free, spill-proof design reduces installation and upkeep time—no watering or special handling needed—so facilities save on maintenance while ensuring safety compliance.

Expect long life and dependable service from this long-lasting battery, backed by U.L. recognition and CE certification for industry standards. Typical applications include emergency lighting, exit signs, building safety systems, UPS and backup power modules, and small stationary power systems. It is also suited to ancillary devices requiring sealed lead-acid power, such as security systems and low-voltage lighting controllers.

Whether you are replacing an aging pack in an office emergency fixture or stocking spare units for building maintenance, this Emergi-Lite RSM36 replacement battery offers the performance and safety features you need. As a high-performance battery and a cost-effective long-lasting battery solution, it provides compatibility assurance and dependable emergency power readiness.

Ready to restore reliable emergency lighting? Order this Emergi-Lite RSM36 replacement battery now and ensure continuous safety and peace of mind with a quality, factory-fresh replacement backed by a 1 year warranty.


Payment & Security

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