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12-12-2019, 01:43 AM   #1
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Looking for middle brother for my batteries

Looked at my batteries today and turned out they are 1 number apart

One was bought on Amazon around Oct 2015, another came from B&H in k3ii in Feb 2016

Most obvious reason could be that Ricoh sold total of 3 batteries in 4 months in US
Although, there is a negligible chance that it is pure coincidence


12-12-2019, 02:15 AM - 1 Like   #2
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I believe that's a year and month code.
12-12-2019, 02:17 AM   #3
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aaah.. alright
12-12-2019, 05:47 AM   #4
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That's not a serial number, that's a date code: year and month. Batteries are manufactured into production lots. I bought two batteries one year apart but both were manufactured a couple months apart (unfortunately, as wanted to have the latest purchase from a newer batch). Li-Ion batteries age in storage, so it's better when the battery we buy is from a recent production lot. I'll buy another set of D-LI90 next year, hopefully from second half of 2019 production lots, or maybe I have to wait until end-2020 to get 2019## date code.

12-12-2019, 07:41 AM   #5
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As said above, that's not a unique serial number but rather a batch code. So, assuming batches were made on '08', you might still reasonably
complete your sequential run.
12-12-2019, 08:27 AM   #6
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How to turn photography into philately :-)
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