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external batttery pack db6o for R4

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pqrst

New Member
Hi there
I stumbled upon this site by accident and it is great.
Hope someone can help me with a mod for my R4.
I'd like to use the interval shooting settings on my R4 for extended periods (a couple of days). The battery life of the internal battery (in the interval shooting mode) is only two or three hours, so an external battery pack seemed like a logical step (cut a notch in the battery cover or remove it altogether). Has anyone done this? There are three contacts on the db60 battery.
Thanks in advance.
 
Hi pqrst and welcome on the board! I think the safest way is to use the AC-4c power adapter. True, it does not give you the autonomy of the battery pack. But as far as i know, there is nothing like that for R4 (or any other Ricoh camera). And considering the R4 is capable of at max 2-3 hours of timelapse runtime, you would need at least 8 stacked DB60 batteries for 24 hours of runtime. I think the AC-4c is much less problematic solution.
 
Will the R4 accept a SDHC card? Storage of images over a couple of day could amount to thousand of images.Even on a lower resolution.
Some of the earlier cameras won't accept SDHC. GRD's don't. :(
What is the biggest SD card available? They are bigger now than when they first came out.
 
I'm not sure about the R4, but I have the same need for the GX and GRD series. One (unproven) idea I have is to modify an AC-4C into a lithium battery powered supply. I haven't yet found a cheap second hand AC-4C, but I have a back-up plan. I have tonight made contact with Viva-Power and will go to Shenzhen to buy one of CN-4 generic equivalents to the AC-4C. I plan to bodge the DC cable onto a power supply that's currently being designed by a well known torch brand. It's meant to output 5V @1A, and will pack two discharge-protected 3.7V 3000mAh 18650s, but the factory says they will do me a one-off at 3.8V. If that works, then I will have an external battery that delivery 5 times the battery life of the built-in battery.
 
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