Power cuts in Nigeria often strike without warning. One moment, your household plans are on track; the next, the lights go out. Power restoration is uncertain, but with a home solar system, your essentials never stop.

But how long will a solar battery last during a power outage? That’s the real question. Read this blog for a quick overview and tips on maintaining batteries for better performance. 

How long does a solar battery last in a blackout? 

During a blackout, the lifespan of your solar battery depends on several factors. On average, a solar battery can power a home for 4 to 24 hours and even longer if usage is limited to essentials. Here are the factors dependingon  your solar battery’s duration: 

1. Battery Capacity 

A 220ah Ah solar battery can provide 2.5–2.8 kWh of usable energy at 12V. During a blackout, it can power essential loads like lights, fans, TVs, and wi-fi for about 6 to 10 hours. However, it also depends on the intensity of use and efficiency. 

2. Power Consumption

The more appliances you run, the faster your inverter battery will drain. Essential appliances like light, fan, and Wi-Fi consume less power than television, heating systems, and air conditioners. Induction cooking is a crucial appliance that can also draw significant power. 

3. Application Load Management

Using only critical appliances during a power outage can extend the lifespan of your solar battery. Smart load prioritisation helps you ensure a long-lasting power supply. 

4. Battery Type and Health 

Tubular inverter batteries used as solar batteries last longer than standard lead-acid batteries. A well-maintained solar battery performs well during power outages. 

5. Solar Generation during Daytime

If the blackout occurs during the day and the solar panels are producing energy, the battery can recharge while powering your home, thereby considerably extending your backup time. 

How long does a solar battery last at night? 

At night, a solar inverter battery supplies power using the energy stored during daytime solar generation. For a typical 220ah solar battery, the backup duration ranges between 6 and 10 hours, based on how the power is consumed. 

Just as during the day, the actual duration at night depends on both essential and additional electronic appliances. Similarly, battery type and conditions also matter. Clever use and proper maintenance will also extend a solar battery’s lifespan. 

Do I need to reset the solar after a power outage? 

Yes, you often need to reset your solar system after a power outage manually. Sometimes, your solar inverter will fire back on its own, and other times it might not. A proper reset can resume a smoother power flow. Here are the signs indicating that your solar system needs to be reset: 

• No green light on your solar inverter, and instead of a red light, it can indicate a reset. 
• If the solar output in your monitoring app is zero after the power is restored, it indicates a red flag. 
• If your inverter’s screen is blank or showing an error, it indicates something is not right, and a proper reset might solve the problem. 

How can I maintain my solar battery to improve its performance? 

Once you know the lifespan of your solar battery, the next step is to maintain it to ensure long-lasting performance. Here are some quick solar battery maintenance tips: 

• Keep your solar battery in a ventilated area to prevent overheating. 
• Do not overcharge or undercharge your solar battery. 
• Do not mix old solar battery charging systems with new batteries. 
• Do not charge your solar battery beyond its stated capacity. 
• Clean the terminals regularly to prevent rust or loose connections. 
• Schedule maintenance periodically to avoid sudden breakdowns. 

Check our blog for more detailed guidance. Our experts will always assist you with specific maintenance services to ensure a long-lasting, uninterrupted power supply. 

Bottom Line

Power outages are no longer rare, and for a Nigerian household, solar power provides a means of independent power consumption. At Star Plus Battery, we offer high-capacity solar batteries that last longer during power outages. 

Looking to purchase one? Connect with us for installation, maintenance, repair and replacements. 

Solar Battery FAQs