Best Replacement Batteries for UPS of 2026
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If you're looking for reliable backup power for your electronic devices during power outages, then replacement batteries for uninterruptible power supplies (UPS) are a must-have. These batteries are designed to provide long-lasting power and stabilise voltage fluctuations, ensuring that your devices remain protected and functional. While there are many replacement battery options for UPS on the market, it's important to choose a high-quality battery that can deliver the power you need when you need it.
At a Glance: Our Top Picks
Top 6 Replacement Batteries for UPS
UPLUS 12V 7Ah Rechargeable Battery for UPS
The UPLUS 12V 7Ah Battery offers impressive longevity, lasting over five years with low self-discharge rates and up to 600 charging cycles. This means you can rely on it for a variety of applications without frequent replacements. Its quick charge performance allows for rapid recharging, ensuring you won't be left in the dark during an emergency. With its strong resistance to shocks and vibrations, you can trust this battery to perform well in demanding environments, providing you with peace of mind.
APC RBC48 Replacement Battery for SMT750I
The APC RBC48 Battery is designed for compatibility with the SMT750I UPS model, ensuring you can restore your UPS performance to its original specifications. The genuine APC replacement batteries are rigorously tested and certified, providing peace of mind. You will appreciate the recyclable, spill-free sealed design, which promotes safety and environmental responsibility. Additionally, the easy hot-swap installation allows you to replace the battery without any downtime, making it convenient for your needs.
Yuasa NP3.2-12 12V Lead Acid Battery for Backup
The Yuasa NP3.2-12 Battery is a powerful and compact 12V lead-acid solution, designed for reliability in various applications. With its long-lasting sealed lead-acid technology, you can enjoy stable performance without the hassle of maintenance. This battery is perfect for alarm systems, emergency lighting, and UPS systems, ensuring you have backup power when you need it the most. Additionally, its leak-proof design allows for safe installation in any position, making it suitable for both indoor and outdoor use.
Q-Batteries 6LS-4.5 6V AGM Battery
The Q-Batteries 6LS-4.5 is an excellent choice for your UPS and emergency power needs. Its AGM technology ensures safety by keeping the electrolyte sealed, making it ideal for reliable performance in safety systems. With a low self-discharge rate of less than 3% per month, you can trust that this maintenance-free battery will be ready when you need it. The high lead content adds to its reliability, offering you long-lasting power for your devices. This battery's compact size also makes it easy to install in tight spaces.
APC RBC17 12V 9Ah Battery for ES700 UPS
The APC RBC17 Battery ES700 offers a reliable 12 Volt 9Ah sealed lead acid battery using the latest technology, ensuring long-lasting power for your UPS system. Its compact size with F2 large terminals makes installation straightforward and compatible with many devices. Featuring Absorbent Glass Mat (AGM) technology and LG raw materials, it enhances battery life, giving you more consistent performance. Additionally, the TTP technique reduces internal resistance, which helps maintain efficiency and prolong the battery's operational lifespan.
HQ 12V 1.3Ah Universal Sealed Lead Acid Battery
The HQ 12V Lead Acid Battery is a reliable sealed rechargeable battery designed for universal use. With a voltage of 12 volts, it is suitable for a range of household devices that require consistent power supply. The 1.3 Ah capacity ensures that you get a decent amount of energy for your needs, allowing your devices to run efficiently. Its compact dimensions of 97 mm x 43 mm x 52 mm make it easy to fit into tight spaces, providing convenience and flexibility in installation.
Frequently Asked Questions (FAQs)
1. How often should you replace batteries in a UPS?
The battery is by far the most vulnerable and failure-prone part of your UPS. If you have your UPS long enough, you will probably have battery problems. Once every six months to a year or so you should recalibrate your UPS's battery sensor, and once every several years you will have to replace the batteries.
2. Can I replace UPS battery with higher ah?
Yes you can use the 75Ah battery in your UPS. You can also use 100ah or 200ah battery , no problem with that. But note that, your UPS charger is made for 7ah battery, so you will need a bigger charger for your battery to charge. Just use a separate charger to charge the battery.
3. Can I use any 12V battery in my UPS?
Assuming the UPS uses a common 12V SLA battery, you can replace it with a 12V lead-acid car or deep-discharge battery. All are common lead-acid batteries and should work identically.
During our replacement battery for ups research, we found 156 replacement battery for ups products and shortlisted 6 quality products. We collected and analyzed 16,953 customer reviews through our big data system to write the replacement batteries for ups list. We found that most customers choose replacement batteries for ups with an average price of £33.33.
The replacement batteries for ups are available for purchase. We have researched hundreds of brands and picked the top brands of replacement batteries for ups, including UPLUS NEW TECHNOLOGY BATTERY, APC, Yuasa, Q-Batteries, Powervolt.
Kenneth Collin graduated from Imperial College, London, at 22. He is a UX/UI designer, a web developer, and a writer, amongst others. At age 14, Kenneth programmed his first app. Kenneth's app served as a remote control for censored devices. "When I was 8, I would pick up scraps from electronics and try to rebuild or at least fix them," Kenneth said in one of his recent articles on Home repairs for top gadgets.