kivis Posted November 30, 2009 Share #1 Â Posted November 30, 2009 Advertisement (gone after registration) My M7 is going thru batteries at a rate of only 3 rolls of film. Tried 3 different brands. And the worst of it is that when I test the used batteries, they still have plenty of charge. Back to Leica? Link to post Share on other sites More sharing options...
Advertisement Posted November 30, 2009 Posted November 30, 2009 Hi kivis, Take a look here M7 eats batteries. I'm sure you'll find what you were looking for!
miklosphoto Posted November 30, 2009 Share #2 Â Posted November 30, 2009 never had that problem. I had to change batteries in my M7 after a year of shooting (about 25 rolls) Link to post Share on other sites More sharing options...
etp095 Posted November 30, 2009 Share #3 Â Posted November 30, 2009 i bought my m7 used back in march and i've run about 10 rolls through it.still have battery life,don't know how old the batteries are,sounds like your m7 is going to return to the fatherland for a tuneup. Link to post Share on other sites More sharing options...
AnakChan Posted November 30, 2009 Share #4 Â Posted November 30, 2009 Suggest U get your M7 checked out. I just pulled my M7 out of its bag for about 4-5 yrs and shockingly the battery still works. Yes, I know I shouldn't store batteries in my M7 . Glad it didn't leak. Â I've not heard of a battery drain after 3 rolls. Even if the M7 was left on the whole time 3 rolls is a bit short. Link to post Share on other sites More sharing options...
rob_x2004 Posted November 30, 2009 Share #5 Â Posted November 30, 2009 Could be something as simple as a loose or dirty (corroded) connect in the circuit somewhere. My R6.2 went the same way fading the battery in about five minutes, but I havent done anythingn about it yet. My MP is really really sus maybe the meter is working maybe it isnt, mind of its own, but you have to expect that with a camera that has been to leica three times to get fixed, probably a dodgy contact. Who knows who cares. The circuitry in any of the 2x1.5v circuits is sus I figure, not coming good till the R8/9 which goes on forever in any condition, wet dry, hot, cold. One thing I learned was to use cheap batteries that lose voltage to the end giving you ample warning, rather than the sort that give full discharge till the point they die because they will catch you out one day. If I was you I'd piss it off back to service sooner rather than later because it isnt something you can fix, and lets face it, the 7 is a cripple duck without power. Link to post Share on other sites More sharing options...
dpattinson Posted November 30, 2009 Share #6 Â Posted November 30, 2009 My M7 is going thru batteries at a rate of only 3 rolls of film. Tried 3 different brands. And the worst of it is that when I test the used batteries, they still have plenty of charge. Back to Leica? Â Usually, when a M6/M7 is chewing though batteries it's because it it being put away into a bag without switching the camera off. Even a neoprene case will put enough pressure on the shutter button to activate the light meter, and this will drain the batteries quite rapidly. On the M7 there is the power switch under the shutter button/winder assembly. If you are switching the camera off - it's possible the switch is not working properly - test by partially depressing the shutter button when the camera is 'off' and see if the diodes light up in the VF. Â If you're sure you are not having this problem, then I agree with the other posters - that kind of battery life is not normal and you should have the camera checked. Link to post Share on other sites More sharing options...
Falstaff Posted November 30, 2009 Share #7  Posted November 30, 2009 Advertisement (gone after registration) Usually, when a M6/M7 is chewing though batteries it's because it it being put away into a bag without switching the camera off. Even a neoprene case will put enough pressure on the shutter button to activate the light meter, and this will drain the batteries quite rapidly. On the M7 there is the power switch under the shutter button/winder assembly. If you are switching the camera off - it's possible the switch is not working properly - test by partially depressing the shutter button when the camera is 'off' and see if the diodes light up in the VF. If you're sure you are not having this problem, then I agree with the other posters - that kind of battery life is not normal and you should have the camera checked.  Yes, but that assumes that on the M7 the shutter has been wound before putting in bag ie there is one in the chamber, otherwise pressure will not have any effect. Mine seem to last for quite a long time. Falstaff Link to post Share on other sites More sharing options...
bill Posted November 30, 2009 Share #8 Â Posted November 30, 2009 The very earliest models suffered from a battery drain problem. I thought they had all been recalled and sorted, but it may be worth checking out. Â Regards, Â Bill Link to post Share on other sites More sharing options...
Doc Henry Posted November 30, 2009 Share #9 Â Posted November 30, 2009 Hi all LUF friends, For one year, i always have the same battery in my M7 (Varta) Here is what the note of Leica M7 says : " A game of new battery is sufficient .....for a length of measure of 10 sec. by view, for about 65 films of 36 views... for about 2340 views (according to norms of control of Leica). ... Usable piles: Piles lithium -Duracell DL 1/3 N -Kodak K 58 L -Philips CR 1/3 N -Ucar 2 L 76 -Varta CR 1/3 N" Link to post Share on other sites More sharing options...
peter_n Posted December 1, 2009 Share #10 Â Posted December 1, 2009 Not normal. Send it back. I had two M7s for years and no battery problems. I use Sanyo CR-1/3N and buy bulk. Link to post Share on other sites More sharing options...
alun Posted December 2, 2009 Share #11 Â Posted December 2, 2009 Akiva -- I'd say definitely back to Leica. My M7 -- about three years old or so, from new -- had what I now think were three inter-related problems: (i) battery drain similar to yours; (ii) the well-documented DX reader problems; and (iii) what also turned out to be a malfunctioning circuit board. It took two visits to Solms (via Milton Keynes) but was eventually all sorted out and the finder upgraded to an MP finder at no additional charge...and the body returned to me in a little Leica black velvet drawstring pouch (a nice touch). Â I'm now tempted to say that the battery drain problem may be a 'false positive' -- i.e. that the camera reads and reacts as if to a drained battery but that it's actually a malfunction of the circuitry. Â I would send it in and tell them you want battery problem looked at but also the DX reader and the circuit boards checked. Might save subsequent visits... Link to post Share on other sites More sharing options...
kivis Posted December 3, 2009 Author Share #12 Â Posted December 3, 2009 Well David Farkas and I tested a number of batteries and it appears no brand batteries are bad for the M7 and possibly the Kodak's were just very old. I have a pair of Sanyo's and so all is well. So far.... Link to post Share on other sites More sharing options...
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