Making External large battery pack

Tom Jordan · 11-05-2015, 08:43 PM

I'm making a large capacity battery pack and need a dead D-LI90 battery ....
I just need a good body...

any brand as long as it fits ... anyone have one?

Adam · 11-05-2015, 11:38 PM

Originally posted by Tom Jordan

I'm making a large capacity battery pack and need a dead D-LI90 battery ....
I just need a good body...

any brand as long as it fits ... anyone have one?

Just grab one of the really cheap ones on amazon:
http://www.amazon.com/Pentax-Replacement-Batteries-Prestige-Cameras/dp/B00GW...eywords=d-li90

I'm sure there are some for even less.

Tom Jordan · 08-15-2016, 06:54 PM

I decided to use the aa battery tray from the add-on grip, and a 12v -12 Amp hour battery and use a switching "buck" regulator from e-bay. This i will set @ 7.0 volts to allow for any ripple spikes and keep it under the 7.2- ( 6 battery NiMH voltage).
With the two 2000ma batteries giving about 3 hours of use this should be about, 18 hours of power (about).

11-05-2015, 08:43 PM	#1
Tom Jordan New Member Join Date: Jun 2013 Posts: 6	Making External large battery pack I'm making a large capacity battery pack and need a dead D-LI90 battery .... I just need a good body... any brand as long as it fits ... anyone have one?

11-05-2015, 11:38 PM	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,595	Originally posted by Tom Jordan I'm making a large capacity battery pack and need a dead D-LI90 battery .... I just need a good body... any brand as long as it fits ... anyone have one? Just grab one of the really cheap ones on amazon: http://www.amazon.com/Pentax-Replacement-Batteries-Prestige-Cameras/dp/B00GW...eywords=d-li90 I'm sure there are some for even less. Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

08-15-2016, 06:54 PM	#3
Tom Jordan New Member Join Date: Jun 2013 Posts: 6 Original Poster	Ke Battery pack I decided to use the aa battery tray from the add-on grip, and a 12v -12 Amp hour battery and use a switching "buck" regulator from e-bay. This i will set @ 7.0 volts to allow for any ripple spikes and keep it under the 7.2- ( 6 battery NiMH voltage). With the two 2000ma batteries giving about 3 hours of use this should be about, 18 hours of power (about).

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