Smartphones with the largest batteries and fast charging speeds
A phone with a large battery isn’t going to do you much good if the charging is slow. If a phone has a 10,000mAh battery, but can take 2 hours to charge, then you’re going to be sat plugged in for most of the evening. You need a smartphone with a large battery but also fast charging. I’ve reviewed the latest specs and prices for November 2026 and have found 3 smartphones to recommend.
Realme P4 Power 5G – Largest battery available.
The Realme P4 Power has the largest battery of any mainstream smartphone in India with a 10,001mAh battery, and has 80W fast charging capabilities. The phone uses a Dimensity 7400 Ultra chipset, 8GB RAM, and 256GB Storage. It has a large 6.8″ AMOLED display with a 144Hz refresh rate. This phone has excellent battery life lasting 2 days with light usage according to reviewers. In one test using PCMark it lasted for around 21 hours. Prices range from ₹29,999 to ₹33,940 depending on the variant.
OnePlus 15 – Best battery and charging balance.
If you want a smartphone with a large battery and fast charging, whilst still having a good performance, the OnePlus 15 is the one to go for. It has a large 7,300mAh battery along with 120W fast charging. One reviewer got from 20% to 100% in less than 30 minutes using the bundled charger. This phone uses a flagship Snapdragon chipset and has a bright and smooth display. However, it is more expensive than the Realme. Prices range from around ₹72,999 to ₹85,999.
Vivo T5 Pro – A great mid-range option.
This phone has an excellent combination of a 9,020mAh battery and 90W fast charging. It uses a Snapdragon 7s Gen 4 chipset and has a 6.83″ display with a 144Hz refresh rate. It has plenty of RAM and storage for most users with 8GB RAM and 128GB Storage. This is one of the easiest options if you want a phone with long battery life and quick charging. Prices range from around ₹38,799 to ₹38,999.
Which phone should you go for?
If you just care about the battery size then the Realme P4 Power is the one for you. If you want the fastest charging speeds and flagship performance with a large battery then the OnePlus 15 is the best option. If you want a good balance between battery life and charging at a mid-range price then the Vivo T5 Pro makes the most sense. The battery life will depend on how bright you have your screen, how strong your network is and how much you use it. The battery sizes are just a guideline.