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07/26/2011 08:23:16 PM · #1 |
I need to make sure all my batteries are fully charged for Saturday, will it hurt to charge them if they aren't very discharged or will it damage them? I normally only charge them up when they're completely flat..
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07/26/2011 08:27:30 PM · #2 |
Depends on the batteries, they should be depleted normally, try to flatten the batteries and charge them up 24 hrs before. Look up the brand to see what the manufactures states.
Message edited by author 2011-07-26 20:28:02. |
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07/26/2011 08:31:29 PM · #3 |
| Continually "topping up" when they are not fully discharged used to be a real no-no with some rechargeables, but Li-ion are less problematic that way. In no case is it going to be harmful to do so only occasionally. |
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07/26/2011 08:33:53 PM · #4 |
| No, they do not have a memory - as long as they are lithium ion. If you have nickel metal hydride batteries or something else, then disregard the foregoing statement. :) |
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07/26/2011 08:37:26 PM · #5 |
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07/26/2011 08:54:13 PM · #6 |
They're all lithium ion so no problem, it was more the charging them while not knowing if they are already mostly charged that I was worried about, but I'm going to trust that Canon chargers are clever enough to know when a battery is full and switch to trickle charge..
Thanks for the reassurances though ;)
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07/26/2011 09:26:35 PM · #7 |
My understanding, from several tech sources, is that lithium ion batteries actually benefit from topping off instead of deep draining and then recharging. I'm testing that with my current phone. My last phone I would nearly drain before recharging and a charge seemed to take half the day at least. I tried to find an article on that which I recently read, but can't recall where I saw it.
Originally posted by james_so:
I'm going to trust that Canon chargers are clever enough to know when a battery is full and switch to trickle charge.. |
When the charger sees the current flow come to a stop, it knows the battery is charged. This is also why a worn out battery that won't take a charge appears to "fully charge" very quickly. Since it won't take a charge, the current flow to it through the charger comes to a stop almost immediately, making the charger think it is fully charged. In a way it is, since it has as much charge as it is able to hold.
Message edited by author 2011-07-26 21:29:15.
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