3917JR · 1 variant · 26 samples
Android
10 Q
Battery
3900 mAh
Technology
Li-Po
Chipset
lito
Memory
4GB · 128GB
Display
1080x2340 (60Hz)
Model
3917JR
Estimated charging time
6h 0min
to charge 0 → 100%
Max charging temperature
39.3°C
average peak while charging
Screen-on time
5h 0min
estimated on a full charge
Estimated battery life
4h 30min
estimated on a full charge
See your own charging speed, screen-on time and battery health in real time with Battery Guru.
Get Battery GuruSpotted a mistake?
Specs or numbers look off for the Rakuten BIG s? Let us know and we'll fix it.
The Rakuten BIG s packs a 3900 mAh Li-Po battery and lasts about 4h 30min on a full charge with around 5h 0min of screen-on time. It charges from 0 to 100% in roughly 6h 0min, peaking near 39.3°C while charging. Every figure is aggregated anonymously from real BIG s owners using Battery Guru (26 samples), so it reflects everyday usage rather than lab claims.
Based on 26 anonymized samples from Battery Guru.
Aggregated Battery Guru data shows the Rakuten BIG s lasts about 4h 30min on a full charge, with roughly 5h 0min of screen-on time.
The BIG s charges from 0 to 100% in approximately 6h 0min, with charging temperatures peaking around 39.3°C.
The BIG s has a 3900 mAh Li-Po battery.
It is aggregated anonymously from real BIG s owners using the Battery Guru app (26 samples), reflecting real-world usage rather than manufacturer specifications.