Greetings,
After one of the periodic threads last month about Q battery life, I decided to do some investigating for two reasons:
- Users seem to be getting either under 100 shots per charge, or several hundred. There seems to be large numbers in each group. And there are Qs/Q10s/Q7s and Pentax/Wasabi/etc batteries in both groups.
- I have a lot of experience professionally with tablets, cell phones and other small electronics that use similar batteries, and have found small differences in settings make a HUGE difference
So on August 5 I grabbed the next battery in my bag -- a Pentax OEM that had been sitting in there for months -- noted the frame on my Q7, and started shooting.
After a quick shoot today I got annoyed that this experiment was STILL going on, and decided to just shoot until it died. Final tally: 460 frames of RAW+. More than 300 were shot before I started actively trying to kill the battery.
Here's what I propose: Let's all note what batteries we're using, how we charge them, and our settings. Let's see if we can identify which settings place undue strain on the battery.
Here's my setup: I have a Q7, a Q, plus I've given Qs to my wife and daughter. I've seen no difference in battery life between any of the bodies.
I have the Pentax OEM batteries that came with the bodies, plus I bought the Wasabi batteries and charger kit. I've seen no difference in battery life between the Pentax and Wasabi models. I charge the batteries in the charger that came with the Wasabi kit.
Here are my settings: RAW+; AF; Distortion Correction On; D-Range Auto/Auto; Hi-ISO Auto; Shake Reduction on; Live View Off; Instant Review 1 sec. LCD settings are Default.
(EDIT: As vonBaloney points out below, I'm using Live View. Sorry; copied the settings in quickly from the camera. Drilling down one menu shows that the Live View OFF setting seems to refer to GRID being off; I've left everything in this setting at the default.)
Here's my routine: When I kill a battery, I shove it in the Wasabi charger and leave it until the green light comes on; this generally takes a LONG time. I'd say 4-5 hours, minimum. Once they hit green, I throw them in the bag, which goes everywhere with me. They'll sit in there for months until needed.
Shooting: I turn the camera on when I see a shot, shoot, then turn it off manually.
I have several suspicions about what could be causing such a wide disparity in battery life from my experience with LiON batteries in phones and tablets:
1. Batteries aren't being fully charged. LiONs rapidly charge up to a usable range, then charge progressively slower. My Samsung Galaxy Note 3 died this afternoon; it charged to almost 40 percent in about 30 minutes...then took 2.5 hours to charge the other 60 percent. On a heavier charger. How long are each of you charging your batteries?
2. One or two settings are REALLY soaking up the juice. I get one to two days of battery on the Note 3; I can also kill a third of the battery in less than an hour using Nav, which cranks GPS, Location Services and Maps on top of the normal phone stuff. Even with the screen off. Maybe there's similar culprits with the Qs. Live View? Instant Review?
3. Flash REALLY pounds the battery. Trailing Curtain seems even worse. I dislike flash and rarely use it; about 10 frames on this charge were flash.
What are your thoughts? Are there any settings I've missed?
I feel like we can get to the bottom of this if we put our heads together.
cjf
Last edited by cjfeola; 08-28-2014 at 07:07 AM.