VRLA Lead-acid Battery Monitoring System

Valve Regulated Lead Acid (VRLA) Battery Monitoring System

Application

What's the Application of VRLA Lead-acid Battery Monitor System?

Solution

What's the Solution for VRLA Lead-acid Battery 2V 6V 12V?

Background

If the aging batteries are not detected and adjusted regularly, the capacity of the battery pack will decrease, the battery life will be shortened, and the efficient and safe operation of the system will be affected.
In order to ensure the actual capacity of the battery pack and the safe operation of the DC system, the use of the battery intelligent detection system (BMS) to detect the capacity of the single battery, identify the failed single battery, and activate the lagging single battery is obviously an important task of battery maintenance and detection.
Initially a battery pack may have well-matched cells, but over time, the cell-to-cell similarity further degrades, not just due to self-discharge, but also impacted from charge/discharge cycling, elevated temperature, and general calendar aging.

Importance

How important is VRLA Lead-acid Battery Monitoring?

• More than 50% of IDC’s sudden power outages are caused by battery failures
• 85% of UPS failures are caused by batteries
• 1/5 of batteries fail after 2.5 years of use
• 90% of backup power supplies use valve-regulated lead-acid batteries
• the mean time between failures (MTBF) of VRLA is less than <2,100 hours
• but the mean time between failures of UPS is at least 250,000 hours

Cause

What Causes VRLA Lead-acid Battery failure?

1. Voltage
2. Current
3. Temperature
4. Internal Resistance
5. SOC (State of Charge)
6. SOH (State of Health)

Working Principle

How do battery management systems work?

① Electrical Management Protection: Current
② Electrical Management Protection: Voltage
③ Thermal Management Protection: Temperature
④ Capacity Management

On-site Photo

Customers

Who are Acrel's BMS customers?

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