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Maintaining Your Lead Acid Solar Batteries: Tips to Keep Them Going

Your solar power system must be efficient enough to fulfill the load demand daily without any power outage. To keep the electrical system operational, you’ll need to ensure that your solar PV panels and solar-powered batteries are operational too. Batteries charged from solar power last for fifteen years, so you are investing for the long haul and want as much return on your investment as possible. As they are not cheap and, if they fail, lead to lost investment and power to your system. You should give proper time and care to your lead acid solar batteries to keep them running smoothly, efficiently, and safely for the long term. Here are maintenance tips for how to keep the battery running at optimal state.


Lead-Acid Cell Batteries:

Lead-acid cell batteries are used in the PV power plant, while sealed lead acid batteries are used in grid-tied PV Power Plants. Flooded (wet) lead cell acid batteries are usually more inexpensive. Still, they must need periodic refills with distilled water at least twice in 4 weeks or once in 4 weeks to restore the water discharge during the charging process. Sealed (valve-regulated) cell batteries do not need service periodically. Sealed lead cell batteries category into sealed AGM (absorbent glass mat) and gel cells. Lead-acid batteries using AGM technology have become the industry standard. They require no maintenance and are ideal for grid-connected systems since batteries are generally kept at full charge. Gel-cell batteries, engineered to withstand freezing temperatures, are often the wrong choice since any overcharging would permanently harm the battery. Repair and maintenance may be executed by a professional battery maintenance and repair specialist. The Solar Panel Costing professional team supports you in the battery installation, maintenance, and battery replacement. However, using their Solar Panel Cost Calculator, you can estimate the outlay of your PV panel's roof square size.

Maintenance Precautions when doing Lead Acid Solar Battery (LAS) maintenance

Overcharging a gel battery can cause battery gases to escape, leading to the same risk of explosion as wet lead-acid batteries.
Before disconnecting any wires, be sure the battery bank has been disconnected.

Using scrubbers to eliminate rusting or corrosion from terminals or bolts may result in an unfitting when leads are reinstalled.

Keep an eye on battery charging.

Solar lead acid batteries can go down to a maximum depth of discharge of 70-80 percent, but some deep cycle lead acid batteries must have a maximum depth of discharge of 50 percent. The battery voltage should be checked daily, around the same time, since this will provide a consistent indicator of the battery charge state. Can use check this to make energy-use decisions to avoid overcharging the battery. Enquire with the system provider for the contractor's suggestions


Avoid getting your battery to dampen.

Getting your solar lead acid batteries wet can cause problems:

It can corrode the metal and yield less current, damaging the seals and leading to leaks.
It causes overheating, which can shorten battery lifespan. In addition, it can cause the formation of sulfate deposition, which can reduce the battery's storage capacity.
It can make the battery more difficult to recharge, leaking to decrease the battery's overall output efficiency.

Lead-acid batteries in a ventilated place

Most people choose lead-acid batteries for their solar power needs because they are less expensive than other types of batteries. However, lead-acid batteries must be placed under a shady place where they do not come in contact with the sun heat. Hot temperatures will affect the state of charge of the battery. For this reason, deploying them in a well-ventilated area is essential.

Keep an eye on battery voltage.

If you have gel cell batteries, you can examine the product's specs to indicate the state of the charge against various voltage levels using voltmeter.


When To optimize Solar Sealed Lead Cell batteries

As opposed to solar configured sealed lead acid batteries, they require no maintenance. Inspecting the liquid level of sealed solar lead acid batteries within four weeks is necessary, and you will probably have to pour distilled water more often to recoup the water level that drains during charging. You should also clean the terminals and connections monthly and inspect the battery for any signs of damage or leaks. Lead acid batteries require distilled water and an equalizing charge about twice a year. However, sealed lead cell batteries don’t require equalizing batteries. Moreover, Wet cell flooded batteries (vented cells)— must monitor the electrolyte level regularly after three months, four times a year. However, Sealed Acid batteries require less maintenance and care than wet flooded batteries.


Gel Lead cell batteries

Solar Gel Lead cell batteries need special maintenance and care while charging, as overcharging might permanently damage the battery. Solar Lead Gel batteries are free-flowing electrolytes and vents as they lose less water when charging. They are assessed maintenance-proof due to their manufacturing.

Maintenance tips for Gel cell acid batteries
Take a cotton fabric and clean the battery, terminals, and connections with a good quantity of baking soda with pure distilled water. You must add one cup of soda (baking) to the quantity of 3.78 distilled water liters. The Solar Panel Costing certified team covers the battery installation, repair and maintenance, and replacement. Moreover, you can signify your PV panel outlay estimate by Solar Panel Cost Calculator.


Additional Maintaining ways for Solar Lead Acid Batteries

Maintaining your Solar lead acid batteries is crucial assuring they last as long as possible. Lead acid batteries require little maintenance. Maintenance may be performed by a professional battery maintenance and repair expert for safety risk. These are the battery maintenance tips you’ll need to keep the longevity of battery life.

- Always let your Solar lead acid solar batteries to drop temperature before attempting to charge them.
- When charging, use a voltage that is no higher than the recommended level for the battery.
- Avoid overcharging and stopping once the battery is full.
- Regularly clean and inspect your lead acid batteries to ensure they are functioning.
- Don't keep your battery running for too long.
- If you have a lead acid solar battery, it’s essential to keep it well-maintained.
- Keep Distilled Water level examined regularly.
- Inspect the terminals, connections, and bolts monthly to monitor the corrosion effect or any cracks and leaks.
- Don’t let the battery dive into the overcharge or deep discharge state. Go for the product chart.
- Keep your batteries in a well-ventilated area.
- Keep the connectors free of corrosion.
- Charge the batteries regularly to prevent sulfation decomposition on plates.
- Equalize the wet flooded batteries every three months to ensure they all have the same voltage level as the electrolyte.



Maintaining your lead acid solar batteries is crucial if you want to ensure they last a long time. Solar Lead acid batteries require little maintenance and repair to keep them functional to energize your appliances. Only maintenance may be performed by a professional battery maintenance and repair expert. However, maintaining solar power batteries may be worth it in the long term as maintaining them increases the longevity by up to a few years more than their manufacturing type. Solar Panel Costing offers certified specialists for all sorts of battery inspection and maintenance. Contact Solar Panel Costing online by filling out the quote form on their web page or engaging them at +443301335760.