I know there is a lot of stuff on the internet about this already, but I have a slightly different question. So let's say I buy these batteries
amazon.com/gp/product/B00QKD4V4C/ref=ox_sc_sfl_title_1?ie=UTF8&psc=1&smid=ANK8P1OMW3VD1
and it turns out I need 3 so I buy the same 2 set again.
amazon.com/gp/product/B00QKD4V4C/ref=ox_sc_sfl_title_1?ie=UTF8&psc=1&smid=ANK8P1OMW3VD1
Is that considered mixing? I did notice that under SDI they have a special code that is 4 character and is on all of them. Mine is 2FB1 and is on both of the batteries I bought. I'm pretty sure if I buy another 2 they will have a different one that is on both of those. So can I buy another 2 or should I go and buy 3 and never use the 2 I bought.
amazon.com/gp/product/B00QKD4V4C/ref=ox_sc_sfl_title_1?ie=UTF8&psc=1&smid=ANK8P1OMW3VD1
and it turns out I need 3 so I buy the same 2 set again.
amazon.com/gp/product/B00QKD4V4C/ref=ox_sc_sfl_title_1?ie=UTF8&psc=1&smid=ANK8P1OMW3VD1
Is that considered mixing? I did notice that under SDI they have a special code that is 4 character and is on all of them. Mine is 2FB1 and is on both of the batteries I bought. I'm pretty sure if I buy another 2 they will have a different one that is on both of those. So can I buy another 2 or should I go and buy 3 and never use the 2 I bought.