I ended up getting both the Pentax grip and a third party ... the
battery trays interchange nicely,
and my idea was to use the third party "grip" as a charging adapter for
a set of 6 NiMH batteries
in the AA tray.
I was, however, unhappy with the tray NiMH/internal Lithium mixture, the
K-5 seemed to to often switch to internal
too quickly, perhaps too much voltage drop in the connections. I did
not get the expected battery life.
So now I exclusively use the Lithium tray. It is nice having the
internal battery
as a backup ... no fumbling with batteries in the field until you have a
chance.
I do carry the AA tray loaded with AA lithiums as a backup in my backpack.
Regarding the third party grips ... as I recall there were what looked
like two different types,
the type I got was almost identical to the Pentax, except for the o-ring
seals.
See the post by LeDave at
http://www.pentaxforums.com/forums/6-pentax-dslr-discussion/82642-pentax-k7-3rd-party-battery-grip.html
On 1/28/2016 12:32 PM, P.J. Alling wrote:
Well, that's what I get for only checking Amazon. That's less one of
the third party grips they're selling. Now all I have to do is
mentally fully justify getting it.
On 1/28/2016 12:15 PM, Bipin Gupta wrote:
Dear PJ Sir, lots & lots of Pentax original Battery Grips - D-BG4 -
were sold for FREE along with the K-5 IIs & K-5 II.
Todays price at B&H brand new is $ 79.
The Internet had a news report "where will all these Grips go"? They
were being disposed off pretty cheap. Look up Evil Bay as also other
web sites.
Sir, why buy 3rd Party when the great original stuff is available
pretty cheap??
I am keeping mine so that I can get a better price for the K-5 IIs
when I sell it for the Full Frame Pentax DSLR.
Good Luck.
Bipin.
--
Richard Dell
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