Super Digibin Power Pack

Hi gorden, i didnt actually write that, someone else did, in reply to one of my messages.

but back to the issue, does that mean if your internal SDB battery is completely dead u can charge it for, say, 10 minutes to give it a tiny charge, then run it quite happily on either AC power or an external battery pack??

Gorden said:

I used my SDB this weekend at a hockey game at it worked great as I
was shooting a full 512 mb CF card in about 10 mins I had over 400
photos for the game. But its like warren said below. I wonder has
anyone tried using 8.4 volts instead of 7.2?

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--
warren prasek
web design ~ interactive media ~ photography
(specifically candids/street, event, theatre, abstract/arty)
http://www.wprasek.com/

The link does not work. Can you please veryfy if it is correct?
Thanks
John

Gorden said:

I also found this link if you want to buy this already built

http://the-discount-shop.com/product_info.php?cPath=74_26&products_id=935&osCsid=e9e5ea984c952d9a39499e53615cb294

Click to expand...

(For all us canon guys out there)...
Has anyone tried to utilize the BP-511 pack from most of canons cameras?
It is 7.2V @ 1100-1400 MAH depending on the type you buy.
Just a thought

Gorden said:

I made my own for only $6.00 Canadian





it only took about 10 mins. I used the AA holder because I can
always use the batterys from my flash.

Gorden

Click to expand...

Well, Just got a superdigibin.. so the first thing I have to do is open it up and modify it... first rule of the engineer!!!

First.. they put a whole lot of resistance between the adapter and the battery possibly for protection.. but unless U are an idiot, U dont need protection from yourself...

I bypassed thier ckt.. hooked the adapter terminals directly up to the battery terms.. with a little blue wire inside.. Now when U plug in the adapter (rated at 1.2 amps 8.37 volts) the batttery can be totally disconected and the unit hums right along.. also, it appears (that the one I got anyway.. seems to use a charging ckt inside the ac adaptor.. that is why U get a red light when pulling current (charging or unit on) and a green light when the voltage between batt pack and charger equalize.. The battery has a static voltage of 8.67 volts (measured with volt meter) If U use an 8 AA holder, bypass one of the slots and use 7 NICAD OR NIMH (1.25 volt batts) the system will measure about 9.1volts hot out of the charger...(and thats a 30min super cooker everready with a 4amp 12volt adapter) IF U USE REGULAR BATTS (rated at 1.5volts) U RUN THE RISK OF MAKEING AN EXPENSIVE INEFFECIENT SMOKE GENERATOR... The external and internal batts will now run your unit basically in parrallel... but when the system goes flat your done.. but U can always plug it right back in and get instant power even if Your batts are flat...

Chances are that if the battery is near dead, It will charge with lots of current and this may decrease the life of the battery.. Ill keep U posted on how all this stuff works after some testing. If these are Lion batts, it could cause thermal runaway and that could be the reason for the resistance in the ckt.. but if U dont live life on the edge.. U never get anything accomplished.

if U try this and it smokes your unit.. not my problem.. it works for me at least so far... I have left the unit pluged in now for about 2 hrs and the internal batt is not overheating due to overcurrent or overcharging..

if U are brave U can try this.. if not, DON'T..

have a nice day