Some points on getting the most from the D-Li90 Battery:-
a) Note: the Pentax battery supplied with the K-5 no longer has the
better Gold plated contact pins. It is plain chrome plated only, and
prone to oxidation, where an opaque layer or a film forms on the pins.
b) Was frequently getting the depleted battery sign on the K-5 with
the Pentax original battery. It gave just (400) shots from a full
charged battery - flash not used.
c) Used pure ethyl alcohol & Q-tips to clean the contact pins and then
polished them off with a soft cloth.
d) The depleted battery sign menace has gone away, and I now easily
get around 700 shots.
e) Last week a 3rd Party battery arrived from Singapore for $ 7
shipped. Looks very good and matches the Pentax Amp Hour Rating - 1860
Ah. I put it for charging in the Pentax original Charger. The Green
charging light would come on and the shut down immediately. First
thoughts - bad battery.
Then I cleaned the contact pins as in Sl. c) above. And voila the
battery charged very well.
f) I keep a voltage
record of all my batteries - discharged and fully charged. The
Singapore battery measured 8.50 volts vs 8.45 for the Pentax when
fully charged. Which means it is just as good and will last longer
than the Pentax original.
g) How do I make this claim?I have kept voltage records of all my
D-Li50 battery for the K20D for the last (4) Years. All the batteries
are still going strong - (1) Pentax original and (3) 3rd Party. I use
it in the Camera as well as in the original D-BG2 Grip.
As the battery age, the full charge voltage keeps going down. Here are
some results:- Pentax original when New - 8.46 v, after 42 months -
8.24 v; 3rd Party 1 - 8.54 v & 8.28 v; 3rd Party 2 - 8.56 v & 8.17 v.
And these 3rd Party batteries for the K20D are just as good even after
(4) years - Amazon com and EvilBay purchases.
Thanks for reading this post.
Bipin - from the far away enchanting land.
--
PDML Pentax-Discuss Mail List
[email protected]
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow
the directions.
