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Solar Batteries: What Maintenance Do They Need? How To Maintain Solar Batteries

Solar-powered batteries can last from 10 years - 15 years. Solar Batteries have many manufacturing types, each with different features, so to clean and maintain them, they need proper safety measures and guidelines. Solar batteries can solve the Power shortage problems of centralized sources of power. No matter how long you have used your solar battery, it will eventually require maintenance. A few factors are considered before maintaining–the weather you live in and particular care guidelines for a solar battery. Solar-powered batteries are an investment, so they need repair and maintenance from a specialist. However, Solar Panel Costing offers the best battery maintenance and repairing team in the UK. Here is information about solar batteries and how to maintain them properly.


Wet-Flooded and sealed lead-acid cells Batteries

The negligence in the repair and maintenance of a Wet and lead-acid battery bank includes the potential of explosion from hydrogen gas, burns from acid in individual cells, shorting terminals between cells and plates, and electrocution from an output DC voltage above 120V. The Solar Panel Costing skillful team helps you in the battery installation, maintenance, and battery replacement. However, using their Solar Panel Cost Calculator, you can predict the PV panel's outlay for your roof square size.

How often should you maintain your battery bank?

While solar batteries don't require much maintenance, keeping an eye on them is essential to ensure they are working smoothly and will last more years. It is essential to regularly check the voltage and state of charge of the solar battery bank. Do this every two weeks or months and tighten terminals.

- Wet cell flooded batteries— must monitor the electrolyte scale regularly.
- Sealed or gel cell batteries—where the electrolyte cannot be accessed, a controlled valve is used, and the battery is sealed.
- Lithium-ion batteries – are rarely used in solar power systems.


Precautions are taken before solar battery maintenance

When performing any maintenance, should take the following measures:

- A certified battery maintenance and repair expert may only perform maintenance if the battery bank has a nominal DC voltage of 120V.
- The system's owner shall not do any repair and maintenance on Low Voltage wiring systems or the output terminals of equipment that generates a low voltage.
- Before beginning battery bank repair, it is critical to disconnect the battery bank from the system and shut it down.
- Always plug out the battery's negative terminal first from the Battery Disconnect Switch.
- Avoid using too much water. Allow no baking soda to infiltrate the cell—even a trace quantity of baking soda will irreversibly destroy it.
- Ensure the distilled water proportion in a battery regularly for the lithium and alkaline batteries.
- Assure battery dryness; use a cotton cloth or soft brush.
- Examine the corrosion or loose wires.
- Assure batteries are kept in a dry place. The battery should not mount in direct contact with sunlight.
- Wear safety glasses, Acid-resistant gloves, an apron, or clothes.
- To neutralize any acid that spills into the ground, use carbonate soda.

Battery Maintenance and repair of necessary tools

- Glass bulb thermometer - to measure electrolyte temperature.
- The hydrometer examines the weight/volume of the cells of a battery.
- Antioxidant coating - for Antioxidant protection of battery terminals.
- Distilled water to rinse the hydrometer and thermometer.
- A multimeter (volt-meter) - for voltage metering of a solar-powered battery.
- Baking soda - to clean batteries.

Solar Battery maintenance guideline – How to do battery maintenance properly – step-by-step battery maintenance guide

A thorough visual evaluation of the battery bank is necessary for routine maintenance. This inspection should include battery cleanliness, electrolyte level (not required for gel cell batteries), battery terminal condition, indicating a possible battery leak or overfilling battery container condition, and battery voltage level. Battery maintenance will generally focus on optimal charging routines, electrolyte conditions, battery terminals, and overall battery safety.

Voltage metering
After isolating the battery bank, use a voltmeter to measure the voltage across the entire battery bank and each cell. If any cell's voltage is more than 10% higher or lower than the average, check an equalization charge and the battery bank thoroughly.

Clean Cells
Before removing any filler caps for maintenance or measurements, thoroughly clean each cell; it will prevent dirt from entering the compartment. To clean, use a soft brush to remove any residue and a cloth dipped in a concentration of baking soda and distilled water.
Avoid baking soda from infiltrating the cell—even a trace quantity of baking soda will irreversibly destroy it.

Checking a battery bank with a hydrometer
To avoid contamination of the electrolyte, thoroughly rinse all components of the hydrometer before use. Also, clean and rinse the thermometer. Select one cell to monitor the electrolyte temperature. Insert the thermometer inside a cell and do not come in contact with any plates or other internal battery features. Dampen the hydrometer bulb and place the tube into the electrolyte, releasing the bulb to suck up the solution. Before testing the next cell, thoroughly wash the hydrometer with distilled water.
The hydrometer is at the same temperature as the electrolyte.

Increasing the electrolyte distilled water concentration
The battery loses a considerable amount of water while charging. Fill the battery through the electrolyte filler hole with distilled water to refill the electrolyte to a proper level. When the battery charge is high, it is better to add distilled water.

Battery lead cleaning
If the battery terminals display corrosion indications, they may require cleaning. Detaching the battery terminals from the switch (battery disconnect switch) and cleaning the battery terminal connectors of the battery lead connections. After cleaning, return the battery lead connection to the battery terminal connector and apply the antioxidizing coating. Repeat round for each connection, and assure the electrolyte does not come in contact with any extraneous substance.
Detach the battery's negative terminal first from the Battery Disconnect Switch.

Neutralize any acid that spills into the ground.
To clean the battery cells, plates, and connectors. Pour 2.6 distilled water gallons into a container with 1/2 a standard cup of soda (baking).
Allow no baking soda mixture to come in contact with the battery cells while neutralizing acid deposits on the floor—even a trace quantity of baking soda can irreversibly destroy the cell.

Gel cell batteries need special care.
Gel-cell batteries are made to sustain harsh cold conditions since any overcharging would permanently harm the battery. Gel cell batteries need special maintenance and care in their charging process since overcharging might permanently damage the battery. Consult the system provider for maintenance instructions for gel cell-type batteries. Gel batteries are free-flowing electrolytes and vents that lose less water when charging. They are considered free of maintenance due to their manufacturing. They use a cotton cloth, battery, terminals, and connections with an adequate concentration of baking soda with clean distilled water. You will need to add one standard cup of soda (baking) to the concentration of 3.78 distilled water liters. The Solar Panel Costing certified team covers the battery installation, maintenance, and battery replacement. Moreover, their Solar Panel Cost Calculator forecasts the PV panel cost estimate for you.
There is no need to fill Gel batteries with distilled water or remove the vents

Lithium Ion Batteries
Lithium-ion batteries don't require as much care as sealed lead acid batteries. You should still check their water level every few months and refill them if necessary. You should also clean the terminals and connections in a year with a brush to prevent corrosion.


If you have solar batteries, keeping them in good condition is essential as they can provide power when they have a proper state of charge and balanced temperature or when adequately maintained—ensuring airflow to the battery mounting area to keep the battery temperature constant. Their longevity is up to twenty years, depending on their manufacturing warranty and efficiency. Lead acid batteries require refilling with distilled water.
Solar Panel Costing offers skilled expert services for all sorts of battery maintenance. Contact Solar Panel Costing online by filling out the quote form on their web page or calling them at +443301335760.