Maximize Your Home's Backup Power: Tips for Extending Your Battery's Lifespan

Batteries serve as a handy energy supply, yet they inevitably come with a restricted lifespan. As you've observed with your smartphone, this is evident. The battery loses its charge gradually over time. Moreover, the battery performance deteriorates over time, necessitating more frequent charging of your device.

This behavior is not limited to just your smartphone battery. Most batteries experience a reduction in capacity over time and will ultimately require replacement. The same applies to home batteries These are large lithium-ion batteries designed to serve as an emergency power supply for your house. Similar to their smaller versions, they too have a restricted lifetime and cannot avoid eventual failure.

Just like your iPhone battery, Cameron McDonald , who serves as the vice president for merchandise planning and inventory management at Batteries Plus , told kor.news.

You'll derive significantly longer use from a home battery compared to an iPhone battery, yet even these batteries have their limits. Thus, what determines the longevity of your home battery? And how might one prolong its operational lifetime? Below is some professional guidance aimed at maximizing the efficiency and duration of your home battery’s operation.

What is the lifespan of a home battery?

The most typical kinds of home batteries often consist of various types of lithium-ion chemistry , deteriorates gradually just as with all batteries. Every cycle of charging and discharging reduces its ability to retain a full charge somewhat imperceptibly at first. However, after several years, you may begin to observe that your battery doesn’t maintain its charge as effectively as it once did.

Your home battery isn't designed to last indefinitely, but it could potentially endure for longer than you imagine. According to McDonald, expect it to have a lifespan of around 15 years.

Examine the warranty carefully.

Most of the home batteries available for purchase typically include a 10-year warranty. This does not guarantee that your battery will fail completely after this period. What you should focus on regarding yourbattery battery's warranty Is it the cycle life or the anticipated energy throughput? Either metric provides a solid indication of how durable your battery is supposed to be, as claimed by the manufacturer.

Each time you discharge and then charge your battery, it counts as one cycle. Under your warranty, the manufacturer promises that your battery can perform through a specific number of these cycles while still being covered. Typically, home batteries are designed to last around 6,000 to 8,000 such cycles over their lifetime.

Likewise, you could find an anticipated energy "throughput" mentioned somewhere within your warranty. This serves as another method for the manufacturer to estimate your battery’s longevity. The throughput of your battery, typically quantified in megawatt-hours, represents the cumulative quantity of electrical power that the battery ought to supply to your residence throughout its operational life while remaining covered by the warranty.

As the maximum energy storage capability of your battery diminishes with age, many manufacturers provide an end-of-warranty capacity assurance. This ensures that your battery will maintain a specific percentage of its initial peak capacity once the warranty ends. Typically, this guaranteed minimum is around 70%. Even after the warranty has expired, you can continue using your battery—potentially for an additional five years. However, do not anticipate the same level of performance from the battery as when it was newly installed.

Elements that might influence the longevity of your home battery

Batteries vary widely, and those that seem alike might not have identical lifespans. This discrepancy occurs due to various outside influences impacting your battery life. Consider these points below.

Exposure to extreme temperatures

Occasionally, factors that impact your battery’s longevity lie beyond your control, such as environmental conditions. Living in excessively hot or cold regions might reduce your battery's life span, according to McDonald. Therefore, when choosing a location for your battery, aim to place it in spots that shield it from severe temperatures.

If you reside in a hot environment, storing it inside or in a shady spot can prolong your battery life. In colder climates, protecting it from the weather with insulation is beneficial as well. Should your residence feature a garage, think about placing it there for better care.

Depth of discharge

How you utilize your battery can impact how long it lasts. The term "depth of discharge" denotes the proportion of energy you can safely deplete compared to the full capacity. According to McDonald, discharging your battery completely down to zero before charging may harm it. This is why numerous battery systems prevent such deep discharges—to safeguard the battery’s condition.

Number of charging cycles

A battery life expectancy of 10 or 15 years presumes that you will go through a specific amount of charge cycles. According to McDonald, every instance where you discharge and then recharge your battery slightly diminishes its overall longevity.

If you find yourself cycling your battery beyond what the manufacturer recommends, you could experience a shorter than typical battery lifespan due to increased wear and tear," McDonald explained. Review your battery’s warranty to understand its anticipated cycle life.

Physical damage

It might seem obvious, but many still manage to inadvertently harm their batteries. For instance, McDonald mentioned encountering cases where individuals have bumped their battery with their vehicle when backing into the garage. Such an incident could shorten the battery’s life expectancy. Therefore, when selecting a placement for your battery installation, collaborate closely with your technician to identify an area that offers convenient accessibility as well as minimal chances of unintentional damage.

Is it worthwhile to install a home battery?

The value of a home battery largely hinges on your expectations regarding the returns on your investment.

"What’s your objective? If your aim is to reduce your energy expenses, a home battery might or might not be suitable for you," McDonald stated.

Home batteries can assist in saving money when combined with solar panels, or by using them strategically. time-of-use rates From your utility provider. You still need to address the initial upfront cost. cost of the battery To begin conserving funds. With that in mind, the The price of home batteries has been decreasing. . A recently released report from EnergySage discovered that battery prices fell by 16% in 2024 relative to the previous year.

A lot of property owners opt for home batteries for another rationale: These serve as an emergency power supply to provide electricity to their homes when needed. outage In this scenario, the return on investment could be more related to comfort than just figures. "There’s the monetary return on investment, and then there’s the peace of mind ROI," McDonald stated.

In either case, a skilled installer ought to assist you in analyzing the specifics of your scenario and determining whether the calculations make sense. Be certain to include the federal government’s 30% tax credit provided through this program. Inflation Reduction Act This tax incentive enables you to deduct up to 30% of the expense associated with installing a home battery system from your taxable income.

Residential batteries may not be suitable for everybody. Should the substantial initial expenses deter you, or if concerns over possible electrical disruptions do not bother you, or alternatively, if you cannot benefit from varying electricity prices at different times, then investing in a home battery could potentially be unnecessary.