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SigmasTek  |  SKU: BW-10858

LightAlarms CEI-5BS / EP66536 6V 4.5Ah SLA Compatible Replacement Batteries - 10 Pack

Sale price $94.45 USD Regular price $109.80
Shipping calculated at checkout.

➤ Direct replacement for LightAlarms CEI-5BS and EP66536 models

➤ Maintenance-free sealed lead acid (SLA) design

➤ Provides reliable performance and long service life

➤ Cost-effective alternative to original equipment manufacturer (OEM) batteries

➤ Compatible with a wide range of applications for versatile use


📦🚀 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 | 4.5 AH

Terminal Type

F1

6V 4.5AH SLA Replacement Battery — 10-Pack for LightAlarms CEI-5BS, EP66536

Maintain continuous protection for your LightAlarms fixtures with this 10-pack of 6V 4.5AH SLA replacement batteries. Designed as a direct replacement for LightAlarms CEI-5BS and EP66536 models, these batteries offer a cost-effective way to restore or maintain emergency lighting performance. The sealed lead acid (SLA) construction provides a maintenance-free, spill-proof solution that’s ideal for a range of safety-critical applications.

Key Specifications

  • Compatible Models: LightAlarms CEI-5BS, EP66536
  • Pack Size: 10-Pack
  • Battery Type: Sealed Lead Acid (SLA)
  • Voltage: 6 Volts
  • Capacity: 4.5 AH
  • Design: Maintenance-free sealed lead acid construction
  • Brand: SigmasTek
  • Terminal: F1
  • Application: Direct replacement for specified LightAlarms models

Benefits

These SLA batteries deliver dependable, long service life for emergency lighting systems. The sealed, maintenance-free construction minimizes upkeep and eliminates spill risks, making them a safe and practical choice for buildings, service vehicles, and utility closets. As a high-performance battery option, they deliver reliable output during discharge periods and are well-suited for repeated charge/discharge cycles typical of emergency lighting systems.

Typical applications include exit signs, emergency lighting fixtures, low-capacity UPS systems, and other critical standby circuits. Purchasing a 10-pack ensures you have a ready supply for multi-fixture installations or scheduled maintenance programs, lowering per-unit cost and simplifying lifecycle management.

These replacement batteries offer a cost-effective alternative to OEM units without sacrificing reliability or fit. Installers and facility managers will appreciate the universal compatibility with LightAlarms CEI-5BS and EP66536 models and the ease of installation.

Protect your facility’s emergency lighting system today by ordering this 10-pack of long-lasting, high-performance replacement batteries — a smart bulk solution for dependable backup power.


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