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| Dis-charge / Re-charge cells , is much Too much ? - Page 1 | |
| Rechargable cells | Rate Topic |
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| Posted: Tue Dec 2nd, 2014 20:23 |
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1st Post |
novicius
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Can Dis/Re.charge damage cells ? Reason I ask is that they`re supposed to last One thousand cycles , so, what is your take on things , Dis/Re.charge Often is Good ? ... or a Hoax ? What do You do ?
____________________ Back in Danmark I do not use my equipment to make photo`s .. I take photo`s to use my equipment The better I become at photography,the better my camera gets. |
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| Posted: Wed Dec 3rd, 2014 02:31 |
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2nd Post |
Robert
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Not an authority but I do know there are different technologies of rechargeable battery, NiCad, LiIon and NiMH. As far as I understand it the NiCad are best discharged then re charged. The other two it's less important. I leave my MacBook pro plugged in almost continuously but allow it to discharge from time to time. I never turn it off unless I actually need to. It's over 4 years old now and the battery still seems as good as the day I bought the computer, If I leave it in it's case for a week, still turned on, it will still have enough charge to be used for a while. Much longer than that and it may turn itself off. My D200 batteries are always discharged before re-charging, Again I am still on my original Nikon batteries which still perform well. I bought my first D200 in August 2007, 7 years ago, although not in continuous use, they have had their fair share of use. My power tools get a lot of use, I almost always discharge then recharge those batteries. What I have found with the NiMH batteries is that one day they are good, the next they are bad, (rejected permanently by the charger) there does not seem to be a gradual reduction of capacity, which puzzles me. I have quite a lot of AA NiMH cells, the most recent batch being 2600 mAh. This latest batch have been the least reliable, failing while many of my early cells are still performing well, which has generally put me off the rechargeable AA cell except for flash guns. It would seem there is a distinct cut off point beyond which the battery is no longer capable of, or perhaps safe, to continue recharging. I know there is a ton of data about this on the internet but take some of it with large pinch of salt. Perhaps JK can shed some light on this?
____________________ Robert. |
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| Posted: Wed Dec 3rd, 2014 04:05 |
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3rd Post |
jk
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I agree with Robert's summing up of experiences with NiCads and NiMHs batteries. For Lion batteries it is recommended that you do not completely discharge the battery <5% as this can reduce its life. I generally charge my batteries use until the camera flashes or red lights the battery then recharge. I do not put through the discharge cycle at all. However using the NiMH batteries a discharge/recharge cycle may be beneficial.
____________________ Still learning after all these years! https://nikondslr.uk/gallery_view.php?user=2&folderid=none |
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| Posted: Wed Dec 3rd, 2014 15:50 |
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4th Post |
novicius
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Grateful for the replies ,now I know what `t do , thanks !
____________________ Back in Danmark I do not use my equipment to make photo`s .. I take photo`s to use my equipment The better I become at photography,the better my camera gets. |
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| Posted: Sat Feb 14th, 2015 18:53 |
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5th Post |
Ed Hutchinson
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Hi There The manufacturer of my ham radio hand held radios state that it is better to go through 3 charge re charge cycles when new then do what ever is needed ( these are LI-ion cells) Hope that helps Ed 
____________________ R.O.C.E.D. retired old cranky extremely dangerous! |
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| Posted: Sun Feb 15th, 2015 04:22 |
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6th Post |
jk
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Ed Hutchinson wrote: Hi There I think you need an intelligent charger to do this for Lion cells.
____________________ Still learning after all these years! https://nikondslr.uk/gallery_view.php?user=2&folderid=none |
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| Posted: Sun Feb 15th, 2015 09:54 |
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7th Post |
amazing50
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My Segway has Lion cells, about $3000CDN worth. It is left plugged in when not in use as per Mfg. even during the winter. The onboard charger puts a pulse through it about every 10 sec. In the spring the fully charged but unused cells will only give about 5 km. on their first run. After 3 or 4 chargings it will go about 15 km.
____________________ There is nothing worse than a sharp image of a fuzzy concept ;~) Mike Grace |
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| Posted: Sun Feb 15th, 2015 20:18 |
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8th Post |
novicius
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Now I am Confused.....with li-ion chargers/Cells , we do n`t have a choice... it`s all auto.. or I am missing something ?.. Tutorial Please 
____________________ Back in Danmark I do not use my equipment to make photo`s .. I take photo`s to use my equipment The better I become at photography,the better my camera gets. |
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| Posted: Mon Feb 16th, 2015 07:43 |
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9th Post |
jk
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Lion cells should be recharged with a charger that is designed for the battery in question. Or it needs to be an intelligent Lion battery charger that interrogates the battery and then uses the appropriate recharge profile for the battery. This is controlled by a small circuit that controls charge/discharge in the battery.
____________________ Still learning after all these years! https://nikondslr.uk/gallery_view.php?user=2&folderid=none |
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| Posted: Thu Jul 26th, 2018 14:58 |
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10th Post |
GeoffR
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Li-Ion, not Lion, cells must NOT be deep discharged, they like to be used in the mid range, 20% to 90% and they can be recharged at what ever state is convenient so recharging from 80% isn't a problem neither is recharging from 5% or 95% but they need an intelligent charger that stops charging at 100%. Discharging to 0% will cause damage. I did a considerable amount of research to determine whether a computer with a Li-Ion battery could be stored and used onboard an aircraft. I determined that, with appropriate processes it could.
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