Lead-acid batteries

Lead-Acid Batteries - a Proven Solution for Autonomous Power Supply

Lead-acid batteries - are a classic and proven solution for ensuring reliable power supply. Despite the development of lithium batteries, lead-acid batteries remain relevant thanks to their low price, stable operation and proven technology.

What is a lead-acid battery?

It is a sealed battery in which the electrodes are made of lead, and the electrolyte is sulfuric acid. In sealed VRLA models, the electrolyte is retained inside the structure, making the battery safe and maintenance-free.

Main characteristics:

• Nominal voltage: 6 V or 12 V
• Number of cycles: 200-500 on average
• Operating temperature range: -15°C...+50°C
• Self-discharge: 3-5% per month

Advantages of lead-acid batteries

• Low cost - the cheapest energy source on the market
• Simple design - minimal risk of failure
• Reliability for backup power supply
• High current output

Warning: lead-acid batteries should not be regularly discharged "to zero" - this significantly reduces their service life.

Applications of lead-acid batteries

• Uninterruptible power supplies
• Video surveillance and alarm systems
• Electric transport
• Backup lighting systems
• Starting systems: cars, motorcycles

Disadvantages to consider

• Shorter service life compared to LiFePO4
• Heavy weight and large dimensions
• Low resistance to deep discharge
• Toxicity of materials if disposed of incorrectly

How to choose a lead-acid battery?

Selection is based on the following parameters:

1. Capacity (Ah) - shows how long the battery can power devices. The higher the capacity, the longer it will operate.
2. Dimensions and polarity - it is important that the battery physically fits into the allocated space and that the location of the positive and negative terminals matches your equipment; otherwise, connection will be impossible or dangerous.
3. Warranty and brand - choose trusted manufacturers.

In the VIDEX store, you will find a wide selection of lead-acid batteries which, thanks to their high current output, are used in security alarm systems, uninterruptible power supplies and autonomous power systems.