Best Smartphones Under ₹15,000 With Great Battery Life: Top 5 Picks

A few years ago, “good battery life” in a budget phone usually meant one thing: a chunky device that took forever to charge and still lagged the moment more than three apps opened. That era feels gone. Now, even phones under ₹15,000 arrive with 6000mAh-plus batteries, 120Hz screens, and processors built to sip power instead of guzzle it. So, for anyone tired of carrying a power bank like it's part of the outfit, these are the most sensible picks right now.

What Makes A Budget Battery Phone Actually Worth Buying

A big battery number looks great on a box, but it's not the full story. Real battery life depends on how efficient the processor is, how well the software manages background apps, and whether the display drains power with high brightness all day.
Also, charging speed matters more than people admit. A phone that lasts long but takes ages to refill can still feel annoying. So, the best budget battery phones balance three things: capacity, efficiency, and charging speed. These five models do that well, while still offering modern extras like 5G, high refresh rate screens, and durable builds.

Best Battery Backup Phones Under ₹15,000: 5 Value Picks.
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Best Battery Phones Under ₹15,000 Right Now

1. realme NARZO 80 Lite 5G

The realme NARZO 80 Lite 5G leans hard into the “reliable daily phone” category, and that's not a bad thing. The 6000mAh battery gives proper all-day confidence, even with 5G running and the 120Hz refresh rate switched on. It also stands out for durability: IP64 protection for dust and splashes, plus military-grade toughness that makes it feel less fragile than most budget phones. The Dimensity 6300 chip keeps things efficient, and the 32MP rear camera handles everyday shots well enough for social posts.

2. iQOO Z10x 5G

The iQOO Z10x 5G feels like the “power user” pick in this list. A 6500mAh battery already sounds impressive, but the bigger win is how the Dimensity 7300 processor manages performance without draining power too quickly. It's the sort of phone that can handle long gaming sessions, streaming marathons, and heavy multitasking without begging for a charger by evening. The 44W FlashCharge helps a lot, too, because topping up doesn't take forever. Add stereo speakers with a loud volume boost, and it becomes a strong entertainment phone under the budget ceiling.

3. Motorola G57 Power 5G

The Motorola G57 Power 5G goes for the most obvious flex: a huge 7000mAh battery. That's the kind of capacity that makes weekend travel less stressful, especially when maps, photos, and hotspot use keep draining phones fast. Motorola also pairs it with 33W TurboPower charging, so it doesn't feel like a slow-moving battery tank. The 6.72-inch FHD+ display runs at 120Hz, and the brightness makes outdoor viewing easier. Camera fans get a 50MP main sensor and an ultrawide lens, which is still rare at this price range.

4. Samsung Galaxy M06 5G

Samsung's Galaxy M06 5G focuses on long-term value rather than flashy specs. The 5000mAh battery is smaller than others here, but Samsung's software optimisation helps it stretch comfortably through a day for most users. The bigger reason this phone earns a spot is longevity: it promises multiple generations of Android upgrades and years of security updates, which matters if the plan is to keep the phone for a long time. The Dimensity 6300 processor brings stable 5G performance, while Samsung Knox security adds extra peace of mind for payments and private data.

5. OPPO K13x 5G

The OPPO K13x 5G balances battery life and charging speed in a way that feels genuinely practical. The 6000mAh battery covers long days easily, while the 45W SUPERVOOC charger makes quick top-ups feel almost effortless. It also offers a clean mix of specs: a Dimensity 6300 processor for power efficiency, a large display for video watching, and a 50MP camera that works well for everyday photography. OPPO's AI features also add some useful polish, especially for photo enhancement and smoother daily usage.

Battery life no longer feels like a luxury feature reserved for expensive phones. Under ₹15,000, these models prove that buyers can get big batteries, fast charging, and modern 5G performance without settling for sluggish devices. For maximum stamina, Motorola's 7000mAh monster stands out. For balanced performance, iQOO feels the most energetic. And for long-term software support, Samsung stays hard to ignore. Either way, the power bank can finally stay at home. Shop now on Amazon.