I would suggest the setup and work flow I use. I carry a battery in the camera (The Pentax original) and a battery in the battery grip.
I set 'Select battery' in Set-up menu 3/3 to 'Grip First'. In usage this means that the body battery is ignored and the grip battery supplies the system. One would have hoped that there would have been an automatic changeover to the body battery when the grip battery is exhausted - sadly, this is not so! But - you can quickly resume shooting on the Body battery by simply turning the camera OFF and then immediately ON. This takes only a moment. Then you can change the Grip battery at a convenient moment. When you do this, the body battery shuts down and the grip battery again becomes the primary source. The beauty of this setup is that you never have an unexpected delay longer than the time it takes to flick the camera switch to OFF then back to ON after waking up to why your camera just stopped <GRIN> I usually top up the Body battery when I think of it and when I expect to be using more than one fully charged battery as I invariably recharge the Grip battery after taking any images during a day so the body battery is pretty rarely used. Hope this is of interest - Rod -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] K10D observation - I've got the BG-2 grip for the spare battery. For some reason the K10D battery indicator doesn't show battery usage. The indicator shows full charge until suddenly, the camera shuts down from the depleted batteries. The battery indicator THEN shows NO charge for just a few seconds. But it never shows half charge or anything like that to remind you to charge the battery before it's completely depleted. Fortunately I had the *ist-D for backup. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.