While processor performance retains its position as the top-most priority while buying smartphones, battery life has emerged as the most important factor in the sub-Rs 20,000 price segment in India
In India’s fiercely competitive smartphone market, a revolution seems to be underway, undetected by anyone, gradually making its presence felt across the market, and it’s being powered by batteries. According to a recent consumer survey by Counterpoint Research, battery life has overtaken traditional performance metrics to become the top-most priority for buyers in the sub-Rs 20,000 price segment. This shift signals a deeper transformation in how Indian consumers perceive value in their digital lifelines. Recent smartphone launches in the Indian market attest to this gradual shift to batteries that last longer.
The Survey
Counterpoint’s study, conducted across Tier 1 cities and beyond, engaged over a thousand smartphone users, all of them primary decision-makers in their purchases. The respondents represented a diverse mix of genders, income levels, and occupations, offering a comprehensive view of India’s smartphone landscape.
While processor performance remains the overall leader in purchase considerations, battery life emerged as the most critical factor for budget-conscious buyers. In fact, 15 per cent of users in the sub-Rs 20,000 bracket ranked battery life as their number one priority. This is a telling statistic in a country where smartphones are often the primary gateway to the internet.
Smartphones today are more than communication tools. They’re hubs for entertainment, work, digital payments, social media, and increasingly, AI-driven productivity. For many users, especially in the budget segment, their phone is the only device that acts as a lifeline that must last through long commutes, power outages, and data-heavy tasks.
“Our smartphones have become essential for nearly every aspect of our lives, from staying connected on social media and making digital payments to capturing photos and managing daily tasks. To handle this constant use, a phone must deliver both smooth performance and a long-lasting battery is very essential”, said Tarun Pathak, Research Director, Counterpoint Research.
The average battery capacity of smartphones in India now stands at 5212 mAh, according to Counterpoint’s India Shipment Tracker (Jan to May 2025). But it’s not just about capacity. Users are demanding smarter battery management, faster charging, and devices that balance endurance with portability. Interestingly, in-depth interviews revealed a growing awareness among users: larger batteries often mean bulkier phones. While long-lasting power is essential, consumers also want sleek, lightweight designs that are easy to carry and hold. This presents a clear challenge and opportunity for smartphone brands.
Manufacturers must now innovate beyond raw specs. The winning formula lies in delivering all-day performance without compromising on ergonomics or aesthetics. For OEMs, this means rethinking battery architecture, optimising software, and investing in materials that support slim yet durable builds. For smartphone manufacturers, the message is clear: battery life isn’t just a feature, it is a deal-breaker now. Especially in the budget segment, where every rupee counts, users are making informed choices based on real-world utility rather than marketing gloss. Brands that can deliver reliable battery performance, coupled with efficient processors and adequate storage, are poised to win big. But they must also communicate these strengths effectively, not just through specs, but through storytelling that resonates with India’s digitally empowered consumers.
As India’s smartphone market matures, user expectations are evolving. The focus is shifting from flashy features to functional excellence. Battery life, once a secondary concern, is now front and centre, a symbol of reliability in a hyper-connected world.
For business leaders and marketers, this trend offers a blueprint, i.e., listen to the consumer, understand their daily digital demands, and build products that truly support their lifestyle. In the race for relevance, power, quite literally, is everything.
There are a few stark reasons why bigger batteries make sense, now more than ever.
Daily Usage
Budget phones are often used for essential tasks like communication, social media, and accessing information, all of which can drain the battery quickly. A long-lasting battery ensures users can rely on their phones throughout the day without constantly searching for a power outlet.
5G adoption
As 5G adoption increases, the demand for reliable battery performance is also rising, as 5G connectivity can be more power-hungry.
Value for Money
Consumers in the budget segment look for the best value for their money. Battery life is a key factor in determining whether a phone is worth the purchase, especially when considering that other aspects like camera quality or processing power might be compromised.
Resale Value
A phone with a good battery health will generally have a better resale value compared to a phone with poor battery life, even if other specifications are similar.
“In the pursuit of more efficient and durable batteries, especially where every millimetre of space is crucial, a new trend is emerging, i.e., silicon-carbon batteries. This technology packs a higher energy density into a thinner, more durable package. This not only allows for a slimmer phone design but also improves the overall battery longevity and experience”, he added.
The Silicon-carbon Revolution
Calling this a revolution might not be fair, so let’s go with subtle transformation. That being said, larger batteries in smartphones do have a downside. Larger batteries inevitably translate into heavier devices, thicker phone bodies, and heating issues. Silicon-carbon battery technology comes into play here. This technology initially entered the top-tier smartphones segment. For instance, the Oppo Find X8 Pro, the OnePlus 13, and the Xiaomi 15 Ultra pack around 6,000mAh cells. Now, we are seeing this technology being implemented in smartphones in the mid-range segment as well, with budget smartphones now boasting batteries with a capacity of over 7,000mAh.
The new silicon-carbon technology has enabled manufacturers to go for batteries higher than 5,000mAh and still retain a slim chassis. This means slimmer phone bodies, better aesthetics, and, of course, longer battery life.
“This is something our research also highlighted, especially battery being the no. 1 choice in the sub-Rs 20,000 price segment. Brands like Poco, Xiaomi, realme and Oppo and already doing a great job in diffusing premium battery features into the entry to mid-tier segment”, Pathak stated.
The Science Behind Larger Batteries
Silicon-carbon (Si/C) lithium-ion batteries mark an evolutionary advance in energy storage, rather than a radical reinvention. By enhancing the traditional graphite anode with silicon, manufacturers tap into silicon’s significantly higher theoretical energy capacity-approximately 4,200 mAh/g compared to graphite’s 372 mAh/g. This advantage has long positioned silicon as a compelling material for boosting battery performance.
However, pure silicon anodes present serious engineering challenges. Chief among them is extreme volumetric expansion, i.e., up to 300 per cent during charging, which places severe mechanical stress on the battery, leading to structural degradation and reduced lifespan. To mitigate these issues, manufacturers employ silicon-carbon composites. Carbon provides structural reinforcement, limiting expansion to a more manageable 10 to 20 per cent. It also improves conductivity, enabling more efficient charge and discharge cycles.
The trade-off is clear: Si/C anodes do not deliver pure silicon’s theoretical tenfold capacity increase. Instead, they offer a more modest 10 to 20 per cent gain in energy density, depending on silicon content. Higher silicon ratios yield greater capacity but introduce manufacturing complexity and expansion risks.
While increasing battery capacities in smartphones is a sign of advancing technology, it is also a sign of smartphones demanding more power to keep things up and running. With more and more manufacturers adopting AMOLED displays and powerful processors for their smartphones, it is only natural that battery capacities will also see a major increase in output.
