Smartphones have become an integral part of everyone in the last decade or so. The reason for this can be attributed to the rapid advancements in the field of mobile technology. Battery Backup From the first Android and iPhones, we have come to bezel-less smartphones with Artificial processing capabilities. The camera had improved beyond words can describe, the latest Samsung one even managed to have a manual focal length adjuster which is a first in the mobile phone industry. The one thing which still could not make any significant progress is smartphone batteries.

The batteries have been a topic of debate for many, while ideas have poured in to use Hydrogen as a fuel and a water coolant system for battery life ranging in months, but all those are ideas and will take quite some time before they become practical. Although the battery technology can be debated there are still smartphones which manage to use the juice in a very efficient way to give you a better prolong charging life. In this article, I will discuss some of these smartphones and their battery power. These smartphones are not out of the box or something with a WOW factor but certainly fairs better than others in more ways than it can be described.

Best Smartphones Under Different Battery Power Category:

Smartphones battery life depends on multiple factors like the processor, RAM, Screen type, camera, and much more. Then there are phones with different power capacity, some use 5000 MAH power, some uses 2000 MAH. I will discuss the battery life on broadly three categories, phones with 5000 MAH, 4000 MAH and 3000 MAH.

Phones with 5000 MAH

The phones with a battery power of 5000MAh are considered to be a powerhouse and can last you easily for 2-2.5 days on heavy usage. If the processor is high-end coupled with 3-4 GB of RAM can prove to be a combination to die for. Some of the phones with these capabilities are listed below.

Samsung A9 Pro

One of the most liked phones in the medium price range. The phone comprises of a Qualcomm Snapdragon 652, with 4GB of RAM for a seamless and smooth performance. The phone also boasts of a 6-inch screen along with a 16MP primary camera. The phone boasts of a massive 5000 MAh battery which can let you forget about the charger for at least 2 days. The phone performs on-par with most of the phones in this range, although the massive battery gives it an edge.

Lenovo P2

Considered to be the finest performer when it comes to battery life at the given price point, Lenovo P2 grabbed a lot of eyeballs with its octa-core 2.0 GHz processor coupled with 3-4 GB of RAM. The processor is slightly a down-grade at 625 SOC but the performance of the phone will assure you of the performance. The phone’s main USP lies in its battery pack which is a massive 5100 MAh. The phone will last you easily for two days on heavy usage and 3 days on moderate ones.

Asus Zenfone MAX

Not in the same range as of the other two but the battery power at 5000 MAH surely puts it in the race. The phone works pretty decently for its price point, with a MediaTek processor bundled with 3GB of RAM. The Battery although is a massive plus point, given the smaller processor. The 5000 MAH battery lasts even longer due to this factor.

Phones with 4000 MAH Battery

These phones are also considered to be a powerhouse and slightly lower than 5000 ones but overall performance in this race is quite commendable too. These battery powerhouses can easily last you for more than a day. If your smartphone has other factors like processor and RAM going for it, then it can easily last you for 2 days on moderate use. Some of the finest phones in this category are listed below.

Redmi Note 5 Pro

The latest addition to the Xiaomi's note series is Note 5 Pro, a complete power packed phoned with all the features one can put in at the given price point. The phone boasts of a 6 inch 18:9 ratio screen with greeting viewing angle. The phone has also housed in the latest Snapdragon 636 SOC. The 4000 MAh battery pack do just the right justice to the phone with these capabilities.

Redmi Note 4

The predecessor of the Redmi Note 5, the Redmi Note 4 was the undisputed midrange king of smartphones last year. The phone had a great screen with 4Gb of RAM coupled along with Snapdragon 652 SOC. The phone had a massive 4000MAh battery to keep it running for the whole day and beyond.

Lenovo K8 Note

Another smartphone with great built and design. This mid-range beauty from Lenovo was quite a head-turner when it was launched last year. Although, the main focus and promotions were done on the dual camera, apart from that the phone housed a Deca-core MediaTek processor along with a 4GB RAM. The phone also has a massive 4000 MAh battery to juice all these up.

Phones with 3000 MAh Battery

These smartphones with 3000 MAh battery might not last you for 2-3 days but surely you won't have any problems throughout the day. This range of the battery is used in high-end phones, as they can optimize battery performance through the high-end processor and almost every other hardware. As I have discussed, the hardware plays a strong part in enhancing your battery life. So I will discuss some of the finest phones with a battery range in 3000 MAh.

Samsung Galaxy S8

The phone needs no introduction, easily in the top 3 phones of 2017. It has an octa-core Snapdragon 845 processor, along with 4 to 6 GB of RAM. The screen is OLED thus enhancing the battery life and the professor helps too. The phone is super fast and runs along for the whole day. The camera hardware is really appreciable and of course the screen.

OnePlus 5T

Well, commonly known as a flagship killer, this phone with its 3100 MAh battery kills the competition by a long long way. The phone comes with a dash charger which is currently the fastest charger in the industry. The phone even lasts way longer than many flagships like Samsung s8 or iPhone X. The reason for this is it's just page screen which is incomparable with high-end phones but hey you are paying so much less here.

LG V30+

Another high-end smartphone by the LG. The phone is considered to be one of the most underrated ones. The reason, this phone has got the best video camera setup available in the market. The phone has an amazing design with the use of metal and glass to perfection. The 3300 MAh battery really provides it with enough juice to last you for a complete day even with heavy usage.

So, these are some of the best smartphones with massive batteries in their respective categories. With the inventions and progress going on, we for sure will have the phone in 10 years which will last for months without any charge. until then we have to keep up with the available options.