How long do I charge 1d batteries?

I have a dual charger for the 1d classic and I am refreshing two batteries right now and want to have them charged up for tomorrow asap. My question is, when I press refresh and the orange light comes on when do I know when it is all refreshed? After its refreshed to I click the refresh button again and does that mean it starts charging? How long do I charge the batteries for?

Sorry for the stupid questions but I really want to know because 1d batteries arent cheap :P (well the black diamonds are)

I am assuming you are talking about the official Canon charger.

In refresh, the charger will drain the batteries down all the way and then automatically switch over to "charge". You do not need to switch it. Depending on the charge level of your batteries, this could take 8 hours or more to do.

The charger will automatically stop charging when a full charge is reached.

DDCSD wrote in post #5958621
I am assuming you are talking about the official Canon charger.

In refresh, the charger will drain the batteries down all the way and then automatically switch over to "charge". You do not need to switch it. Depending on the charge level of your batteries, this could take 8 hours or more to do.

The charger will automatically stop charging when a full charge is reached.

REALLY!?

According to my manual a full charge from completely drained battery takes about 120 minutes.

It then states that for refreshing a battery, it will take about 8.5 hours to drain a fully charged battery.

So, if your batteries are at full charge, it may take 10.5 hours for a refresh cycle.

I have never timed mine, I just plug them in before I go to bed and hit refresh. When I wake up they are ready. I usually refresh when I get two batteries dead at the same time, so I'm sure it takes much less time for mine.

Oh ok. So what about the part where you said the charger automatically will turn off when its down charging the batteries? Is that true? Im just wondering because I dont want to chance anything

azneric3 wrote in post #5958670
Oh ok. So what about the part where you said the charger automatically will turn off when its down charging the batteries? Is that true? Im just wondering because I dont want to chance anything

Hmmm.... the manual actually does not state that, but it will start blinking rapidly.

As I said, I simply let mine charge overnight, so mine probably sit for 5-7 hours after they finish charging. I have never had an issue (haven't had my IIN for that long though). The batteries are not warm when I remove from the charger after the night, so that tells me that the charger is not attempting to charge them.

My batteries are blinking slowly but not 2 blinks every second and they are already getting pretty warm

I just purchased a third party replacement battery for my 1D for $20. Are they not recommended? Amazon sells the canon brand for around $120. That's a little steep.

Bump for a reply to daduls' post.

azneric3 wrote in post #5958725
My batteries are blinking slowly but not 2 blinks every second and they are already getting pretty warm

A slow blink should occur when you have two batteries attached. The charger only charges one at a time (somewhat unbelievably so) and so the one 'waiting' is the slow blink. The one charging is a steady light. And if one is done charging then it's a fast blink. It is counter intuitive to most chargers I think.

daduls wrote in post #5959032
I just purchased a third party replacement battery for my 1D for $20. Are they not recommended? Amazon sells the canon brand for around $120. That's a little steep.

There seems to be alot of mixed opinion on them from what I've read, but a common complaint is that they don't actually fit properly and for many you have to actually replace their end caps from a Canon battery so that they do fit snugly. But as I said, YMMV so you may end up with no issues and love them.

Here is the charger manual as jpg:

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Funny that they state the reason to have the refresh feature is to reduce "Memory Effect" when it is well publicized that one of the primary benefits of NiMH batteries is that they can be repeatedly charged without fully discharging because they DO NOT suffer from "Memory Effect"

Funny how many opinions are on the web about that...

Here are two Google found: One and two.

mastertech01 wrote in post #5961752
Funny that they state the reason to have the refresh feature is to reduce "Memory Effect" when it is well publicized that one of the primary benefits of NiMH batteries is that they can be repeatedly charged without fully discharging because they DO NOT suffer from "Memory Effect"

Here's a snippet from the following link that explains that:

http://www.greenbatter​ies.com/nibafa.html#Ni​MH%20memory