Rockbox mail archive
Subject: Re: Friday night at work - battery situation update
From: Michael O'Quinn (michael_at_oquinn.info)
On Sat, 23 Aug 2003, Sharon wrote:
> I painstakingly (first time was a doozy!) changed the batteries in my
> Jukebox 20GB Recorder Friday with fully-charged 1600 NiMH batteries.
> My job is a 6-hour shift with alternating 5- and 10-minute breaks. My
> plan was to pause on 5-minute breaks and turn off on 10-minute
> breaks. We had a surprise meeting after 3 hours and I "meant" to turn
> the unit off, anticipating being away 20 minutes or so. I must have
> put it on pause rather than turning it off, because to my horror it
> was still showing the list on the LCD when I got back from the
> meeting! (I guess you have to push harder to make sure it's turned
You might want to set the Idle Off Timeout. On my player it located at
"Menu -> General Settings -> System -> Idle Poweroff". I have mine set to
10 minutes, which for me is a good compromise between power savings and
convenience. If I'm in a power-tight situation (like camping) I'll bump
it down to a 2 or 3 minutes.
> But, even with an unplanned 20-minute pause, the batteries DID last
> the 6 hours, which was my goal and better than the 4 hours I got with
> the green 1500 original batteries. So I'm thinking when the 2200
> batteries I ordered arrive (that I paid too much for after reading
> John's post!), it should play for 8 hours or more.
You might try charging the green batteries in your external charger, and
see how long they run. If it is significantly longer than when you charge
them in the JBR unit, you might be having some charging problems. OTOH,
if you see about the same (low) run-timne, then the batteries are probably
at fault. This is all assuming you are playing the same mix of songe
(same overall average bitrate) for each run.
Page was last modified "Jan 10 2012" The Rockbox Crew