7D battery problem

yewsc · 31st March 2007

Hi fellow CSers,
I bought my 7D last year June, but hardly used due to busy schedule. Few days ago when i took out my battery and tried to charge it using the charger, but i realise that my battery will never charge. Once i plugged in my battery, just a blink of red-LED and then gone. But i still left it to charge for few hours, but when i verified it using my 7D, noticed that it never get charged at all. Have you guys encountered this before? Is it my battery faulty already? and is it cover under warranty? And where can get the service center to check for me?
Please advice and thanks in advance.

eow · 31st March 2007

Originally Posted by yewsc

Hi fellow CSers,
I bought my 7D last year June, but hardly used due to busy schedule. Few days ago when i took out my battery and tried to charge it using the charger, but i realise that my battery will never charge. Once i plugged in my battery, just a blink of red-LED and then gone. But i still left it to charge for few hours, but when i verified it using my 7D, noticed that it never get charged at all. Have you guys encountered this before? Is it my battery faulty already? and is it cover under warranty? And where can get the service center to check for me?
Please advice and thanks in advance.

did u leave it uncharge for a long period? if yes...time to buy a new batt......always charge the li-ion batt fully before u store it for a long period else it will spoilt

wee_ly · 1st April 2007

Originally Posted by eow

did u leave it uncharge for a long period? if yes...time to buy a new batt......always charge the li-ion batt fully before u store it for a long period else it will spoilt

is it? so, best to fully charge the battery before storing it for a long period.

Johnston · 1st April 2007

Originally Posted by wee_ly

is it? so, best to fully charge the battery before storing it for a long period.

Its sure better to have it fully charged before storing.

limkopi · 1st April 2007

I used to hv this problem w my 5D batts, which I sorta temporarily "fixed" by adjusting the batt position in & out until the charger's red LED light stays constantly on to indicate charging... But after some time I realised my charger went totally dead out of the sudden 1 fine day w/o any warning. Not sure if it's due to the 3rd-party batts I use. Charger & 1x 3rd-party batt went dead almost abt the same time but my remaining 2 batts (1x original & 1x 3rd-party) r still alive & kicking...

yewsc · 1st April 2007

battery is not cover under warranty right?
Then where can i get the replacement battery? any recommendation?

Rashkae · 1st April 2007

Originally Posted by yewsc

battery is not cover under warranty right?
Then where can i get the replacement battery? any recommendation?

Bring it to the Sony service center

yewsc · 1st April 2007

Originally Posted by Rashkae

Bring it to the Sony service center

is it at wisma atria?

Galdor · 2nd April 2007

Originally Posted by yewsc

is it at wisma atria?

Yup, it's at Wisma Atria.

limkopi · 2nd April 2007

Originally Posted by yewsc

battery is not cover under warranty right?
Then where can i get the replacement battery? any recommendation?

U can get 3rd-party NP-400 batts at Funan... Infocomm & BestCam sells them...

smtan24 · 2nd April 2007

I had a similar problem with my battery refusing to charge. Discharge the battery completly than charged it. Seems to be working now.

yewsc · 2nd April 2007

How can i actually discharge it completely? Is it by pressing the small hole behind charger? i tried using a pin to press but nothing seems to be happened? can anyone guide me? thanks

Rashkae · 2nd April 2007

Originally Posted by yewsc

How can i actually discharge it completely? Is it by pressing the small hole behind charger? i tried using a pin to press but nothing seems to be happened? can anyone guide me? thanks

Erm... A battery is NOT a calculator. The only thing you might do there is damage the battery. You discharge it completely by USING it. When your cam dies, power it up again, keep doing this until the cam won't even turn on anymore, then try recharging it.

Trigger Happy · 15th April 2007

Originally Posted by yewsc

How can i actually discharge it completely? Is it by pressing the small hole behind charger? i tried using a pin to press but nothing seems to be happened? can anyone guide me? thanks

just buy a new one. even if you can get it to charge do you want it to die on you in the middle of a shoot? the non-originals are about $30+ each.

btw i read somewhere that you should not charge your batteries fully before storing them. i'm not sure which is the "right" method. in any case, i've stored full and drained batteries (sometimes charge all 8 but end up not using all of them), but because i cycle them around and use them often i haven't had any die on me yet.

TME · 16th April 2007

A new original NP-400 costs $38+ before GST... works out to about $40... still pretty affordable. It's just a few dollars more than EastGear's 3rd party replacement at $34+ including GST.

whybee · 17th April 2007

Originally Posted by TME

A new original NP-400 costs $38+ before GST... works out to about $40... still pretty affordable. It's just a few dollars more than EastGear's 3rd party replacement at $34+ including GST.

whoa

Where'd you get new ori NP-400 from? I bought mine from AP @ Sim Lim, a third party one for $36. With so little price difference like that, somehow i prefer to have the original.
Suddenly i feel like I've been ripped off

Johnston · 17th April 2007

Originally Posted by whybee

whoa
Where'd you get new ori NP-400 from? I bought mine from AP @ Sim Lim, a third party one for $36. With so little price difference like that, somehow i prefer to have the original.
Suddenly i feel like I've been ripped off

i think you can get the original from SSC.

Del_CtrlnoAlt · 17th April 2007

Originally Posted by whybee

whoa
Where'd you get new ori NP-400 from? I bought mine from AP @ Sim Lim, a third party one for $36. With so little price difference like that, somehow i prefer to have the original.
Suddenly i feel like I've been ripped off

its a 'clearance' from Sony. You have to get it from Sony Service Centre

sulhan · 18th April 2007

Lithium Ion Battery packs s
should not be left uncharged for a long time.
There is a overdrain..safety circuitry that cuts off the battery voltage to zero once it reaches some threshold voltage and may make the circuit not user resettable.
It needs to go through some specific cycling to recover.

Therefore, use your lithium Ion packs often and charge ocassionally even if not used.

smtan24 · 18th April 2007

Here's an artical on Lithium Ion batteries:

http://www.batteryuniversity.com/parttwo-34.htm

31st March 2007	#1
yewsc Member Join Date: Jun 2005 Posts: 71	7D battery problem Hi fellow CSers, I bought my 7D last year June, but hardly used due to busy schedule. Few days ago when i took out my battery and tried to charge it using the charger, but i realise that my battery will never charge. Once i plugged in my battery, just a blink of red-LED and then gone. But i still left it to charge for few hours, but when i verified it using my 7D, noticed that it never get charged at all. Have you guys encountered this before? Is it my battery faulty already? and is it cover under warranty? And where can get the service center to check for me? Please advice and thanks in advance.

1st April 2007	#5
limkopi Member Join Date: Aug 2004 Location: Singapore Posts: 416	Re: 7D battery problem I used to hv this problem w my 5D batts, which I sorta temporarily "fixed" by adjusting the batt position in & out until the charger's red LED light stays constantly on to indicate charging... But after some time I realised my charger went totally dead out of the sudden 1 fine day w/o any warning. Not sure if it's due to the 3rd-party batts I use. Charger & 1x 3rd-party batt went dead almost abt the same time but my remaining 2 batts (1x original & 1x 3rd-party) r still alive & kicking...

1st April 2007	#6
yewsc Member Join Date: Jun 2005 Posts: 71	Re: 7D battery problem battery is not cover under warranty right? Then where can i get the replacement battery? any recommendation?

2nd April 2007	#11
smtan24 Member Join Date: Dec 2005 Location: Tampines Posts: 1,482	Re: 7D battery problem I had a similar problem with my battery refusing to charge. Discharge the battery completly than charged it. Seems to be working now.

2nd April 2007	#12
yewsc Member Join Date: Jun 2005 Posts: 71	Re: 7D battery problem How can i actually discharge it completely? Is it by pressing the small hole behind charger? i tried using a pin to press but nothing seems to be happened? can anyone guide me? thanks

16th April 2007	#15
TME Senior Member Join Date: Jan 2002 Location: Clementi Posts: 6,188	Re: 7D battery problem A new original NP-400 costs $38+ before GST... works out to about $40... still pretty affordable. It's just a few dollars more than EastGear's 3rd party replacement at $34+ including GST.

18th April 2007	#19
sulhan Advertiser Join Date: May 2002 Location: Melbourne, Australia Posts: 4,051	Re: 7D battery problem Lithium Ion Battery packs s should not be left uncharged for a long time. There is a overdrain..safety circuitry that cuts off the battery voltage to zero once it reaches some threshold voltage and may make the circuit not user resettable. It needs to go through some specific cycling to recover. Therefore, use your lithium Ion packs often and charge ocassionally even if not used.

18th April 2007	#20
smtan24 Member Join Date: Dec 2005 Location: Tampines Posts: 1,482	Re: 7D battery problem Here's an artical on Lithium Ion batteries: http://www.batteryuniversity.com/parttwo-34.htm