Looks like we'll be able to make the Dual Shock 4 last a little longer.
Back in January, a fan asked Sony boss Shuhei Yoshida if we'd eventually be able to turn off the light bar on the PS4 controller, thereby elongating the battery life. At the time, Yoshida simply replied, "No."
But he must've thought about it a bit more, because he confirmed to Geoff Keighley at the Game Developers Conference that in fact, a future firmware update will let you dim the light bar. Keighley first reported that you'd be able to turn it off entirely, but followed up with a correction on his Twitter page . For the record, PS4 firmware update 1.70, which features an HDCP Off option for gameplay capture and a new video editing tool, is coming out soon. But we don't know if that update will let us dim the light bar.
Either way, it's good news. That light bar must drain at least some battery power, and it's ridiculous to have it on all the time.