Does your 7D have battery problems???

[Del_CtrlnoAlt]

i doubt its contacts. it simple ma, got contact got electricity, no contact no electricity right? got such thing as got contact low electricity one?

got... if u understand ohms, relate to amphere, maybe one of the wire peel den short circuit creating a decrease in ohms, den happen so the system is an ohm meter... or maybe... along the line, 1 resistor short circuit, giving it more ohms? who knows...

 

[Drudkh]

got... if u understand ohms, relate to amphere, maybe one of the wire peel den short circuit creating a decrease in ohms, den happen so the system is an ohm meter... or maybe... along the line, 1 resistor short circuit, giving it more ohms? who knows...

yesterday never hear you say so chim leh. :bsmilie:

 

[Fatboyx]

Since when did Nikon make a D70 verticle grip?

 

[Fatboyx]

Just kidding....bored la...

 

[Del_CtrlnoAlt]

Since when did Nikon make a D70 verticle grip?

hmm... i think they might make a testicle grip later... grip liao go dark side... yong bu chao shen... :bsmilie: :bsmilie: :bsmilie:

 

[Del_CtrlnoAlt]

yesterday never hear you say so chim leh. :bsmilie:

yesterday see geno stress mah... he the MINOLTA GURU...

 

[Fatboyx]

hmm... i think they might make a testicle grip later... grip liao go dark side... yong bu chao shen... :bsmilie: :bsmilie: :bsmilie:

Ouch....lol:bsmilie:

 

[sulhan]

Hiee Pals..

Contact resistance has been haunting electronics gadgets for awile.
The pressure of the contacts couple with oxide layer on contacts may at times increase contact resistance hence result in the voltage sensing circuitry on camera body detecting false voltage on an otherwise full battery. The voltage sensing circuit usualy have some specific operating window that it require to see "at battery end".

The battery contacts on the 7D grip is not a "forward pressure" (like the one in the camera body) type but a side pressure contact type (made worse) which may have variations due to contact pins that are formed from sheet metal that may be on the lower side of the specs. These sheet metal formed type of contacts may be less reliable at times (cost factor) comparing to those olden days coil spring type. If you realise on some cameras, they insert some sponge at the bottom of such contacts to help maintain a certain force at the contact point.

I did face a couple of time a couple of month back, these low batt problem and i personally force the contacts to biase it towards the battery carefully. After that the problem went away. Cleaning the contacts on thebattery and inner batery compartment contacts further helped in solving the problem.

rgds,
sulhan

 

[Drudkh]

Hiee Pals..

Contact resistance has been haunting electronics gadgets for awile.
The pressure of the contacts couple with oxide layer on contacts may at times increase contact resistance hence result in the voltage sensing circuitry on camera body detecting false voltage on an otherwise full battery. The voltage sensing circuit usualy have some specific operating window that it require to see "at battery end".

The battery contacts on the 7D grip is not a "forward pressure" (like the one in the camera body) type but a side pressure contact type (made worse) which may have variations due to contact pins that are formed from sheet metal that may be on the lower side of the specs. These sheet metal formed type of contacts may be less reliable at times (cost factor) comparing to those olden days coil spring type. If you realise on some cameras, they insert some sponge at the bottom of such contacts to help maintain a certain force at the contact point.

I did face a couple of time a couple of month back, these low batt problem and i personally force the contacts to biase it towards the battery carefully. After that the problem went away. Cleaning the contacts on thebattery and inner batery compartment contacts further helped in solving the problem.

rgds,
sulhan

what cleaning methods did you apply??
i basically use a clean cotton butt to wipe the contacts repeatedly, still no improve.

 

[sulhan]

what cleaning methods did you apply??
i basically use a clean cotton butt to wipe the contacts repeatedly, still no improve.

You could try to pull the inner two sets of contact pins....in the battery grip compartment towards the two coil ejecting spring. Make sure not to pull to hard and break the gold pins or get hooked to the coil spring.

Self clean with cotton bud too...

I use a scriber-like hook like the one they use to clean teeeth in dentist...(L-shaped)
So can from the sides, put pressure from the top to bent the pin downwards..

Disclaimer: Do this at your own risk!!

 

[Toto38]

You could try to pull the inner two sets of contact pins....in the battery grip compartment towards the two coil ejecting spring. Make sure not to pull to hard and break the gold pins or get hooked to the coil spring.

Self clean with cotton bud too...

I use a scriber-like hook like the one they use to clean teeeth in dentist...(L-shaped)
So can from the sides, put pressure from the top to bent the pin downwards..

Disclaimer: Do this at your own risk!!

Ha! Ha! Ha! That why send in for repair better correct? I have did what you done oready! So.......many troble shooting still?????????????:cry:

 

[drake336]

You could try to pull the inner two sets of contact pins....in the battery grip compartment towards the two coil ejecting spring. Make sure not to pull to hard and break the gold pins or get hooked to the coil spring.

Self clean with cotton bud too...

I use a scriber-like hook like the one they use to clean teeeth in dentist...(L-shaped)
So can from the sides, put pressure from the top to bent the pin downwards..

Disclaimer: Do this at your own risk!!

Heh, this is what I did for my 600si grips eons ago... seems like this problem skips the generation gap too :bsmilie: