jedi-knight83 Posted April 19, 2004 Report Share Posted April 19, 2004 Just bought a second hand mz-r900. Its in fantastic condition and works perfectly. i just have a question about the battery. With my old mz-r55 i was using a sony 1400mha battery but this mz-r900 uses a 1350mha battery? can i use the 1400mha in the mz-r900?? thanks in advance Quote Link to comment Share on other sites More sharing options...
mwm Posted April 19, 2004 Report Share Posted April 19, 2004 Yep, you should be able to use it. The unit Ah or mAh only describes the capacity of a battery. The higer the capacity of a battery the longer it runs. (more energy to stores in its cells) I use 2400 mAh Batterys since they keep longer.... Quote Link to comment Share on other sites More sharing options...
jedi-knight83 Posted April 19, 2004 Author Report Share Posted April 19, 2004 thats what i thought. only i tried it in the md player and put a disc in and it spun the disc, then spun it some more, and some more..... swapped back to the 1350mha battery and it read the disc straight away??? i wondered if it was to powerfull??? Quote Link to comment Share on other sites More sharing options...
MDX-400 Posted April 20, 2004 Report Share Posted April 20, 2004 thats what i thought. only i tried it in the md player and put a disc in and it spun the disc, then spun it some more, and some more..... swapped back to the 1350mha battery and it read the disc straight away??? i wondered if it was to powerfull???Well the 50mAh difference is nothing and under "nominal" differences in the cells they might have been very similar at the time of manufacture anyway. The batteries are completely interchangeable. You could use any of the NC-6WM (600mAh NiCd), NH-9WM (900mAh-1200mAh depending on year), NH-10WM (1000mAH), NH-14WM (1200mAh-1400mAh depening on year), or any of the equivalents (GP 1450, Sanyo, Panasonic, etc.). But I mention time for good reason. Though the difference you are experiencing is quite strange/odd (as in it shouldn't be happening), a possible explanation might be that the older battery isn't capable of delivering as much current simply because it is older. Usually when a battery ages enough to make it no longer useful it simply won't accept a charge or plays for only a short time before cutting off, after a full charge. However what may also happen is the internal resistance of the cell may rise and therefore limit both the charge and discharge capability of the cell. Meaning that the MD unit might be calling for more current to power the optical pickup than the older battery can deliver, and that might spell out that the useful life of the old gumstick is just about up. Also note that if the R900 was having a tough time reading discs on an apparently-good-otherwise battery the R900 itself might be drawing more current than normal to power the laser enough to read the disc reliably. What this means is that the laser might be getting weak in the R900... It isn't likely the problem is solely with the R900 though, I think it is simply time to give up on the older gumstick and purchase a new one Quote Link to comment Share on other sites More sharing options...
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