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I'm currently working on making a battery I salvaged from a mowing robot usable. It doesn't have a datasheet or anything, since it was made specifically for the robot and wasn't intended for consumers. That's why I can only use measurements and the sticker on the front to get any data like voltage or capacity. I get most things on this sticker, 2 of them however, I don't understand the meaning of.

First, in the same line that gives me Voltage and Capacity, there is a seemingly random number. Does anyone know what it means? Probably nothing actually concerning the technical stats of the battery, but I just want to make sure.

18.5V / 2.1 Ah / 38.85 WH 1546

Then there is the thing I can only assume is the name of the battery: 5INR 19/66 Rechargable Lithium-Ion Battery. I know it might just be a name, but INR for example, specifies the type of said battery as a lithium manganese nickel battery. I don't know if the numbers mean anything, but again, I just want to make sure.

Here's the entire thing. enter image description here https://www.trgo-agencija.hr/baterija-automower-husqvarna-105-305-586-57-62-01.html

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  • \$\begingroup\$ It's likely a part number for whatever brand that battery is, though I don't have proof of this to really say. \$\endgroup\$
    – user103380
    Commented Oct 9, 2019 at 19:52
  • \$\begingroup\$ No, the part-number is already given somewhere else. I've added an image to help with the question. Interestingly the specific number is different for this battery. Maybe it's some sort of ID? \$\endgroup\$
    – Mat NX
    Commented Oct 9, 2019 at 20:02
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    \$\begingroup\$ It could be a time stamp in the form YYMM documenting the year and month of production. ICs have such numbers, too. Is it plausible that your batteries are produced in 2015? \$\endgroup\$
    – the busybee
    Commented Oct 9, 2019 at 20:18
  • \$\begingroup\$ The robot I got it from was a 2015 edition. Definitely possible. \$\endgroup\$
    – Mat NX
    Commented Oct 9, 2019 at 20:21
  • \$\begingroup\$ Well now that you've edited your question, I definitely agree with Justin's answer :) When you ask questions on here, you should really provide as much information as possible. I should have reminded you of this earlier. \$\endgroup\$
    – user103380
    Commented Oct 9, 2019 at 20:34

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My guess is that it is a date code, probably 2 digit year and 2 digit week. The one in the picture says "Made in PRC 2015", and the code is 1546, so it was probably made in the 46th week of 2015.

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  • \$\begingroup\$ You're probably right, thank you! \$\endgroup\$
    – Mat NX
    Commented Oct 9, 2019 at 20:24

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