Compare the two batteries, are they the same, code 300 compare code 797 both Bosch BBP281

[warek437]

HI All

I am trying to compare these two batteries. Both Bosch Powertube 500Wh vertical mount. Both same part number BBP281, yet one also has a code that is 797
The other battery appears identical but has a code of 300. Does anyone know what the code 797 compared to 300 means? One is made in Poland, the other in Hungary. I was looking online for a second battery and found the 797 one on marketplace. My original has code 300. If compatible it is a good buy, if in good condition.
Is there any easy way to tell if a second hand Ebike battery is in good condition?

Thanks for any information

 

[Aushiker]

From Bosch:

Battery Check

See this thread for some discussion on the batteries.

 

[warek437]

Thx will check it out
kevin