For questions, quotes, or help finding the right battery, feel free to email us at sales@batteryweb.com

New collections added! Learn more

🎉 First Order Special 🎉

First-time shoppers get 5% OFF on batteries & accessories!

WELCOME5
SigmasTek  |  SKU: BW-11188

ELSAR 436 High-Performance Replacement Battery Set (2-Pack)

Sale price $44.22 USD Regular price $51.41
Shipping calculated at checkout.

➤ Includes 2 high-performance 6V 12AH batteries for reliable emergency lighting

➤ VRLA sealed battery technology ensures safe operation in any position

➤ High discharge design supports consistent power output under load

➤ UL certified for guaranteed safety and quality compliance

➤ Meets or exceeds original manufacturer specs for perfect compatibility


📦🚀 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.

📸 Send Your Battery Photo / Unsure? Expert Help

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.
POST YOUR IMAGE

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

F2

SigmasTek Replacement Battery Set for ELSAR 436 (2-Pack)

Keep your ELSAR 436 emergency lighting systems fully functional with this SigmasTek replacement battery set (two batteries). Designed to meet or exceed original specifications, this pair of VRLA sealed batteries offers high discharge capability, wide operating temperature range, and the robust reliability required for emergency applications. As a high-performance battery solution, it provides the dependable, long-lasting battery performance critical for building safety systems.

Key Specifications

  • Brand: SigmasTek
  • Compatibility: ELSAR 436
  • Package Contains: 2 batteries
  • Battery Technology: VRLA (Valve-Regulated Lead Acid)
  • Volts: 6V
  • Amp Hours: 12Ah
  • Terminal: F2
  • Weight: 8.6 Lbs (each)
  • Length: 5.95 In
  • Width: 2 In
  • Height: 3.7 In
  • Warranty: 1 Year
  • ETD: 3 Business Days
  • Shipping Methods: UPS Ground and USPS
  • We ship in 1 business day for all in-stock items

Benefits

This ELSAR 436 replacement battery set is engineered for longevity and reliable performance. The VRLA construction allows safe operation in any orientation and prevents leakage, making it suitable for installations near occupants and sensitive equipment. As a high-performance battery pack, it supports the higher discharge demands of emergency lighting fixtures and offers a long expected service life under normal operating conditions. The result is a long-lasting battery solution that minimizes downtime and maintenance interruptions.

Typical applications include dual-battery emergency lighting systems, exit sign arrays, corridor and stairwell illumination, and other life-safety circuits where redundancy and runtime are important. The included pair ensures you replace both cells at once to maintain balanced performance and extend the serviceable life of your emergency units. The F2 terminal connection is compatible with OEM fittings for straightforward installation by building maintenance staff or electricians.

In addition to durability, this replacement battery set offers peace of mind through a 1-year warranty and fast shipping options. Verify dimensions prior to ordering to ensure a perfect fit, as manufacturer specifications can change. With SigmasTek’s commitment to quality, these batteries are a practical, cost-effective way to keep emergency systems in peak condition.

Maintain uninterrupted emergency lighting by purchasing the SigmasTek replacement battery set for ELSAR 436 today. Order now to secure a reliable, long-lasting battery solution for your safety systems.


Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.