Gel batteries

What is a gel battery and why it is superior to open lead?

A gel battery It is a sealed lead-acid accumulator where the electrolyte is not liquid, but is presented in the form of silica gel. This technical innovation is the one that gives these batteries its name and its unique properties. When the electrolyte is immobilized, the acid stratification problems are eliminated and evaporation is drastically reduced.

In the market own consumptionThe gel batteries are located a step above the AGM and the open leads due to their ability to withstand deep discharges repeatedly without losing capacity. On Tienda SolarWe recommend this technology for those users who seek lead reliability but with the null safety and maintenance amenities of modern technologies.

How does a gel battery work? The chemistry of stability

The internal operation of a gel battery It is based on VRLA technology (Valve Regulated Lead Acid). Unlike flooded batteries, where gases escape abroad, a gas recombination process occurs in gel batteries:

1. Internal recombination: During the loading process, the oxygen generated on the positive plate travels through the cracks of the gel to the negative plate, where it recombines to form water again.

2. Security valve: They incorporate valves that only open in case of an extreme overload to release pressure, maintaining the battery sealed and safe under normal conditions.

3. Deep cycle: Its internal plates are thicker and robust, allowing the chemical reaction to penetrate deeply without falling apart the structure of the active material.

Competitive advantages of gel batteries in Tienda Solar

Choosing a gel battery in our catalog is to bet on technical tranquility. These are the reasons why they dominate the medium-sized installation sector:

• Zero maintenance: Forget about buying distilled water or measuring the acid density. Its sealed design allows unattended operation throughout its useful life.

• INTERIOR SECURITY: By not emitting harmful gases under normal conditions of use, they can be installed within the house, under a seat in a camper or in telecommunications cabinets.

• Temperature resistance: The gel acts as a natural thermal insulation, allowing the battery to suffer less from heat or extreme cold peaks compared to liquid electrolyte batteries.

• Lower self-discharge: If you have a country house that you only use in summer, the gel battery is your best ally; You can keep your load for months without the need to be connected.

• Versatile positioning: Although we always recommend the vertical position, its sealed nature allows them to support vibrations and inclinations without risk of acid leaks.

Key differences: Gel vs. AGM vs. Lithium

It is common for our customers in Tienda Solar They doubt between these three technologies. Here are the definitive comparison to decide:

Solar plates and gel batteries: The perfect combination

For a gel battery yield to the fullest, you must work in harmony with your solar panels. On Tienda Solar, We design systems where the photovoltaic power is capable of completing the "absorption" phase of the battery before the sun falls.

Gel batteries require specific load voltages (slightly lower than flooded). For that reason, it is vital that you solar regulator or inverter charger It is configured correctly to prevent the gel from drying or forming internal bubbles that reduce the life of the accumulator.

How to calculate the gel ability you need?

A common mistake is to buy a battery based alone on the price. On Tienda Solar, we teach you how to dimension by real capacity (ah):

1. Sum your daily consumption (WH): For example, a refrigerator (1000Wh) + lights (200wh) + TV (300Wh) = 1.500Wh / day.

2. Defines autonomy: How many days do you want to endure if it is cloudy? (We recommend 2 days for gel).

• DOD factor (depth of discharge): For a gel battery last 10 years, you should not download it more than 50% usually.

• Calculation: (1.500Wh x 2 días) / 0.50 (DoD) = 6.000Wh. Divided between 12V = 500ah.

Step-by-step installation of your gel batteries

The installation is simple but requires following security protocols to protect your investment:

• Location: Although they are sealed, look for a cool place. Excessive heat is the only real gel enemy.

• Serial or parallel connection: * Series: Sums voltage (12V + 12V = 24V). Ideal to reduce the cable section and losses.

  • Parallel: Sums capacity (ah). Tienda Solar It does not recommend Connect more than 2 banks in parallel to avoid circulation flows that damage the vessels.

• Tight terminal: A loose terminal generates electric arcs and excessive heat that can melt the battery terminal. Always use pressure and grease washers for terminals.

Preventive maintenance and investment care

Although we call them "without maintenance", in Tienda Solar We prefer the term "electrolyte null maintenance". To maximize your useful life (which can reach 12 years old), follow these tips:

1. Prohibited equalization loads: Unlike open lead, Never You must perform equalizations to high voltages in gel batteries, since you would destroy the internal gel.

2. Full-load state: Try your batteries to reach 100% load at least once a week. Leaving them at half load for a long time causes sulfation.

3. External cleaning: Keep the upper dust-free and humidity to avoid superficial micro-discharges between terminals.

Environmental impact and recycling of gel batteries

On Tienda Solar We are committed to the environment. Gel batteries are one of the most ecological products within the lead range:

• 98% recyclability: Almost all components (lead, polypropylene housings) are reused to manufacture new batteries.

• No emissions: By not gasing, they do not contaminate the air of the inhabited spaces.

• Long duration: When it lasts twice as a cheap monoblock battery, generate half of waste over time.

Frequently Asked Questions (FAQ) on gel batteries

1. Can I replace my lead batteries open by some gel?

Yes, but be sure to adjust the load parameters in your inverter or regulator. The gel requires specific absorption and flotation tensions.

2. Can you install lying down?

Although the electrolyte is gelled and does not spill, the VRLA valves are designed to work in a vertical position. It is only recommended to lie on very specific applications and never face down.

3. Why does my gel battery last less than expected?

The most common causes are: lack of full daily load, discharges greater than 80% or ambient temperatures greater than 35 ° C constantly.

4. Are they better for cold or heat?

They better support low temperatures that flooded batteries (since the gel does not freeze so easily) and better tolerate the heat as the AGM, but the ideal is always keeping them between 15 ° C and 25 ° C.