LSe – Lead Selenium Flat Plate Vented Lead-Acid Battery

Mesa LSe Lead Selenium Flat Plate Battery

Engineered for longevity, performance, and safety, the Mesa LSe battery is the ultimate solution for demanding switchgear and backup power applications. Featuring a robust design with .25” thick lead selenium alloy plates, this vented lead-acid battery delivers unmatched reliability and deep cycle capability. Whether you're powering utility switchgear, telecommunications systems, UPS units, or substations, the Mesa LSe is built to exceed expectations and is a direct replacement for any existing Alcad battery system or Midac product.

Unmatched Durability and Performance

The Mesa LSe battery is designed with a 20-year plate life, making it one of the most durable flat plate batteries on the market. Its lead selenium alloy construction resists corrosion and minimizes plate growth, ensuring long-term stability and performance. With deep discharge capability exceeding 1,000 cycles, the LSe is ideal for high-rate applications and frequent cycling.

Key Features:

• Flat, Pasted Plate Design: Ensures excellent high-rate performance and stable float charge characteristics.
• Lead Selenium Alloy Plates: .25” thick for superior longevity and corrosion resistance.
• Deep Cycle Capability: Supports over 1,000 discharge cycles.
• Float Voltage: 2.23 to 2.25 VPC.
• Equalize Voltage: 2.35 to 2.40 VPC.
• Specific Gravity: 1.240 kg/L @ 77°F.

Compact, Safe, and Easy to Maintain

The Mesa LSe is designed with a reduced footprint and low maintenance requirements, making it ideal for installations where space and reliability are critical. The clear SAN (Styrene Acrylonitrile) jars provide crystal-clear visibility of cell plates, bridges, and electrolyte levels, allowing for easy inspection and monitoring.

Safety by Design:

• Leak-Proof Construction: Tongue-in-groove jar-cover seals and O-ring compression seals minimize leaks and mechanical failures.
• Flame Retardant Options: UL V0 94-rated jars and covers available.
• Impact-Resistant Jars: Clear SAN jars allow for visual inspection without disassembly.
• Flame Arresting Vent Caps: Enhance safety in high-temperature environments.

Optimized for Utility and Industrial Applications

The Mesa LSe is a direct replacement for Alcad and Midac LSe batteries, offering seamless integration into existing systems. It is available in a wide range of configurations to suit various power requirements:

Available Configurations:

• Single Cells (LSe): 100 to 1800 amp hours.
• Multi-Cell Blocks (B-LSe): 6-100, 6-150, 6-200, 6-250, and 6-300 amp hour options.

Ideal Applications:

• Utility Switchgear backup power
• Telecommunications
• UPS Units
• Power Plants
• Substation power battery
• Emergency Backup Power
• Existing Alcad or Midac battery systems

Advanced Connector System

Mesa LSe batteries feature a fully insulated connector system with built-in test points for ohmic and voltage measurements. This design reduces terminal connection maintenance and allows for precise monitoring of individual cells during load testing.

Connection Features:

• External Welded Connections: Enable testing of individual cell voltages and internal resistance.
• Insulated Copper Bars: Provide safe and efficient power distribution.
• Stainless Steel Hardware: Ensures durability and corrosion resistance.
• Optional Terminal Posts: M10 threaded copper inserts or Alcad-style square posts with dual connectors.

Included Accessories

Every Mesa LSe battery comes with a comprehensive set of accessories to simplify installation and maintenance:

• Battery inter-cell and inter-row connections
• Terminal hardware
• Hydrometer with holder and drip cup
• Vent-mounted thermometer
• Cell numbers and lifting strap
• Flame arresting vent caps
• No-ox or similar grease
• Installation and operating instructions
• Drawings and documentation

Why Choose a Mesa LSe Battery?

Mesa LSe batteries stand out in the market for their exceptional reliability, long service life, and safety-focused design. No other flat plate lead selenium battery offers thicker plates or longer-lasting cells. Whether you're upgrading an existing system or building a new one, the Mesa LSe delivers peace of mind and superior performance.

Lead time can vary anywhere from stock to 14 weeks depending on configuation needs and commonality of the battery model. Email us at sales@powRparts.com or open our chat window for more information on current lead time.

Product Overview

Brochure + Discharge Tables

⚠️ WARNING

This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. Use only in well-ventilated areas and with appropriate personal protective equipment.
For more information, visit www.P65Warnings.ca.gov.