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09-01-2021, 12:47 PM   #16
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QuoteOriginally posted by sbc Quote
It fits the battery grip but not the camera body.
This is DMW-BLF19 for Lumix camera. There isn't a Pentax version. Both share the same dimensions but with different cutouts and slots.
Excellent idea! This makes it possible for all Users with BG to use the Panasonic DMW-BLF19.

Since the D-Li90 got cheaper than the DMW-BLF19, there are two different options.
https://www.bhphotovideo.com/c/products/On-Camera-Batteries/ci/1100/N/428858...price%3A49..61

09-01-2021, 12:53 PM   #17
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Got several sets of Watson brand and no issues to date. Hate to say it and it might not apply at all in your case, but usually off-name batteries like "ZITAY from China" are the ones with questionable performance. As said previously, check the reviews and you can get third party batteries which have good reputations. Let us know how you come out.
09-01-2021, 02:57 PM   #18
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Seems of limited use if it won't fit into the camera body. Indeed a red flag if the battery is prone to swelling as some third party batteries are.
09-01-2021, 07:53 PM   #19
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QuoteOriginally posted by angerdan Quote
Excellent idea! This makes it possible for all Users with BG to use the Panasonic DMW-BLF19.

Since the D-Li90 got cheaper than the DMW-BLF19, there are two different options.
https://www.bhphotovideo.com/c/products/On-Camera-Batteries/ci/1100/N/428858...price%3A49..61
B&H will not ship overseas or else I would have bought them long time ago.

---------- Post added 09-02-21 at 11:00 ----------

QuoteOriginally posted by Bob 256 Quote
Got several sets of Watson brand and no issues to date. Hate to say it and it might not apply at all in your case, but usually off-name batteries like "ZITAY from China" are the ones with questionable performance. As said previously, check the reviews and you can get third party batteries which have good reputations. Let us know how you come out.
Over the years I have thrown out a dozen 3rd party batteries from every brand I could get. The capacity of all of them are around 1400mAh new. More importantly all of them have high internal resistance which cause a big voltage drop which in turn may be the source of weird camera problems people complain about.

I use a West Mountain Radio CBA IV to test all my batteries so that I know the exact capacities and voltages under load.
West Mountain Radio - CBA IV - Computerized Battery Analyzer

---------- Post added 09-02-21 at 11:01 ----------

QuoteOriginally posted by Not a Number Quote
Seems of limited use if it won't fit into the camera body. Indeed a red flag if the battery is prone to swelling as some third party batteries are.
Read post #10 for clarification.


Last edited by sbc; 09-01-2021 at 08:13 PM.
09-02-2021, 07:36 AM - 1 Like   #20
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Zitay BLF19 battery test

I cycled the battery once and tested it. Internal resistance is a little higher than expected but at least the capacity matches the original.
It did not achieve 2040mAh but then it depends on the test perimeters and margin of error. Now I can only hope it lasts for many years just like the genuine ones.
I have tested many others but deleted the results. Most cheap batteries cannot even reach 1400mAh and IR are very high. Only Pisen was true to its rating of 1400mAh. But I can no longer find that battery.

Red: Zitay 1949mAh
Orange: Pentax 1846mAh
Green: 8 year old Pentax
Blue: cheap 3rd party
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