Check with all the bros here if your batteries behave the same... using a 7D with vertical grip... 3 questions/scenarios..
1) I use 3 EG batteries plus 1 original... I pair up 1 original + 1 EG and my second pair is 2EG batteries. I notice that the pair of 1 original and 1 EG battery dies much faster than having 2 EG batteries... (difference is about 50 shots). That seems too much to attribute to the slightly lower capacity of the original battery...
2) I notice also that the battery charger supplied has some problem ... been like this since new... if u charge one battery to full capacity and then immediately load the 2nd battery for charging... I notice that the charging time for the 2nd battery is significantly shorter (like half the time)... I suspect that the 2nd battery is not completely charged... I have never checked the status of the remaining battery life of each battery on the camera but usually with both batteries in the grip, and when the indicator shows low or red, I will recharge them...
I would expect that both batteries are more or less discharged equally... so a 2nd explanation may be that only one of the batteries is exhausted... which means either a fault in the design of the grip or one of the batteries is faulty... I notice this especially a problem (i.e. significantly shorter charge time for 2nd battery) with the EG + original combo...
3) And I notice that as I use the batteries for an extended period of time (like in my recent trip where I clock well over 2000 shutter counts in 10 days), the battery life seems to get shorter and shorter... when my batteries are fresh (i.e. not used for some time and then charged up), they can last about 200+ shots... but with time, it dwindles to around less than 200 shots... please note that I am counting only the shots I keep... I never keep track of the shots that I shoot and delete... I use the external flash all the time... never touch the built-in unless bo pian and that is really seldom like less than 10 shots in all... Note that I leave the LCD screen all the time and the eye cup causes the screen to be on when I raise the camera to my eye... that may explain the unusually short battery to some of u who are able to clock 300-400 shots per charge or per pair of batteries.
I would appreciate comments especially from those who use EG batteries and charge them very often due to heavy usage...
Thanks!
1) I use 3 EG batteries plus 1 original... I pair up 1 original + 1 EG and my second pair is 2EG batteries. I notice that the pair of 1 original and 1 EG battery dies much faster than having 2 EG batteries... (difference is about 50 shots). That seems too much to attribute to the slightly lower capacity of the original battery...
2) I notice also that the battery charger supplied has some problem ... been like this since new... if u charge one battery to full capacity and then immediately load the 2nd battery for charging... I notice that the charging time for the 2nd battery is significantly shorter (like half the time)... I suspect that the 2nd battery is not completely charged... I have never checked the status of the remaining battery life of each battery on the camera but usually with both batteries in the grip, and when the indicator shows low or red, I will recharge them...
I would expect that both batteries are more or less discharged equally... so a 2nd explanation may be that only one of the batteries is exhausted... which means either a fault in the design of the grip or one of the batteries is faulty... I notice this especially a problem (i.e. significantly shorter charge time for 2nd battery) with the EG + original combo...
3) And I notice that as I use the batteries for an extended period of time (like in my recent trip where I clock well over 2000 shutter counts in 10 days), the battery life seems to get shorter and shorter... when my batteries are fresh (i.e. not used for some time and then charged up), they can last about 200+ shots... but with time, it dwindles to around less than 200 shots... please note that I am counting only the shots I keep... I never keep track of the shots that I shoot and delete... I use the external flash all the time... never touch the built-in unless bo pian and that is really seldom like less than 10 shots in all... Note that I leave the LCD screen all the time and the eye cup causes the screen to be on when I raise the camera to my eye... that may explain the unusually short battery to some of u who are able to clock 300-400 shots per charge or per pair of batteries.
I would appreciate comments especially from those who use EG batteries and charge them very often due to heavy usage...
Thanks!