What does mAh means on batteries?

Started May 18, 2000 | Discussions
Tony Wong
Junior MemberPosts: 39
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What does mAh means on batteries?
May 18, 2000

I just bought my 3030 today from Circuit City. I am looking for some rechargable now. Can anyone tell me what does mAh (milli-Amps-hour, i think) mean on the batteries. I see batteries ranging from 1200 to 1600mAh. Does a bigger number give a longer battery life?

Carl N Gray
Regular MemberPosts: 329
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Re: What does mAh means on batteries?
In reply to Tony Wong, May 18, 2000

Yes, a bigger mAh rating does translate to longer battery life.

The rating means "milli-amp hours" which is effectively how much power you can draw for how long.

For example, with a 1300mAh battery, you could continuously draw 1300mA of power for 1 hour, or 650mA for 2 hours, etc etc.

Of course, it's never that simple, because inferior batteries run out much quicker than their mAh rating if they have heavy loads. That why there are such things as "heavy duty" batteries.

I use the Olympus 1450mAh nickel-metal batteries (NiMH) and find that they give very good life on the 2020. My most power-draining shoot was about 100 fireworks shots in 1 hour with the LCD on continuously (but no flash shots) and I still had about 30min to review the shots on the LCD afterwards.

One thing about the 2020's battery indicator (the 3030 is probably the same) is that it doesn't go down progressively. You may get 2 hours or more of operation, and then only 2 minutes warning that the batteries are low.

The moral - buy good quality rechargeables and ALWAYS keep a spare set on hand.

Hope this helps

Carl N Gray
carl@carlngray.com.au
http://www.carlngray.com.au

Can anyone tell me what does mAh (milli-Amps-hour, i
think) mean on the batteries.

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Adam
New MemberPosts: 8
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Re: What does mAh means on batteries?
In reply to Carl N Gray, May 18, 2000

Quick question, in the PDF version of the C-3030 manual it tells me that i shouldn't use batteries that have a flat - connector where the protective cover doesnt cover it, any idea why? i've been using some NiMH 1400mAh batteries in it for a few days now and not had any problems. is it just that they think it wont make a connection inside the camera properly or they just trying to scare people into buying their own batteries?

Carl N Gray wrote:
Yes, a bigger mAh rating does translate to longer battery life.

The rating means "milli-amp hours" which is effectively how much power
you can draw for how long.

For example, with a 1300mAh battery, you could continuously draw 1300mA
of power for 1 hour, or 650mA for 2 hours, etc etc.

Of course, it's never that simple, because inferior batteries run out
much quicker than their mAh rating if they have heavy loads. That why
there are such things as "heavy duty" batteries.

I use the Olympus 1450mAh nickel-metal batteries (NiMH) and find that
they give very good life on the 2020. My most power-draining shoot was
about 100 fireworks shots in 1 hour with the LCD on continuously (but no
flash shots) and I still had about 30min to review the shots on the LCD
afterwards.

One thing about the 2020's battery indicator (the 3030 is probably the
same) is that it doesn't go down progressively. You may get 2 hours or
more of operation, and then only 2 minutes warning that the batteries are
low.

The moral - buy good quality rechargeables and ALWAYS keep a spare set on
hand.

Hope this helps

Carl N Gray
carl@carlngray.com.au
http://www.carlngray.com.au

Can anyone tell me what does mAh (milli-Amps-hour, i
think) mean on the batteries.

Reply   Reply with quote   Complain
M_greta
Junior MemberPosts: 31
Like?
Re: What does mAh means on batteries?
In reply to Adam, May 18, 2000

Adam wrote:

Quick question, in the PDF version of the C-3030 manual it tells me that
i shouldn't use batteries that have a flat - connector where the
protective cover doesnt cover it, any idea why? i've been using some
NiMH 1400mAh batteries in it for a few days now and not had any problems.
is it just that they think it wont make a connection inside the camera
properly or they just trying to scare people into buying their own
batteries?

it is important for two batteries, their - pol is at the top or close to the cover. their position is in the middle. if they do not have plastic protective cover than it is possible that theirs - pol is connected together (they can touch each other) which could produce total voltage less than 5V, or even produce the short circuit. it is valid for 2000Z and 2020Z too.

sorry for my english.

hope it helps.

miroslav

Carl N Gray wrote:
Yes, a bigger mAh rating does translate to longer battery life.

The rating means "milli-amp hours" which is effectively how much power
you can draw for how long.

For example, with a 1300mAh battery, you could continuously draw 1300mA
of power for 1 hour, or 650mA for 2 hours, etc etc.

Of course, it's never that simple, because inferior batteries run out
much quicker than their mAh rating if they have heavy loads. That why
there are such things as "heavy duty" batteries.

I use the Olympus 1450mAh nickel-metal batteries (NiMH) and find that
they give very good life on the 2020. My most power-draining shoot was
about 100 fireworks shots in 1 hour with the LCD on continuously (but no
flash shots) and I still had about 30min to review the shots on the LCD
afterwards.

One thing about the 2020's battery indicator (the 3030 is probably the
same) is that it doesn't go down progressively. You may get 2 hours or
more of operation, and then only 2 minutes warning that the batteries are
low.

The moral - buy good quality rechargeables and ALWAYS keep a spare set on
hand.

Hope this helps

Carl N Gray
carl@carlngray.com.au
http://www.carlngray.com.au

Can anyone tell me what does mAh (milli-Amps-hour, i
think) mean on the batteries.

Reply   Reply with quote   Complain
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