The Xperia 1 V is equipped with a 5,000mAh battery, providing plenty of power to get you through the day. For example, you can enjoy up to 20 hours of video playback0 – and if your battery needs a boost, you can fast charge up to 50% in just 30 minutes with the optional charger XQZ-UC1.1
To maintain battery health, battery care prevents overcharging while Xperia Adaptive Charging ensures the battery isn't overworked as it charges.
[A] Conventional [B] New Xperia
 At the start of use  After 3 years of use0
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Compared to its predecessor, the Xperia 1 V offers significant power management and consumption improvements. And the volume of the heat diffusion sheet has been expanded by approximately 60%, improving heat dissipation. So you can use your phone for longer without worrying about overheating impairing performance.