24 volt 12 volt battery

[Henry's Cat]

Would it be best to buy a 24volt battery,
Or to buy two 12 volt batteries in serial.

 

[chrisski]

A single 24 volt battery

 

[wiseacre]

A single 24 volt battery

Yep
Best practice is to use the same battery voltage as system/inverter voltage
Using series connected batteries introduces the complication of keeping individual batteries balanced

 

[JJJJ]

What are your power requirements?

 

[Q-Dog]

Would it be best to buy a 24volt battery,
Or to buy two 12 volt batteries in serial.

Yes.

 

[timselectric]

Would it be best to buy a 24volt battery,
Or to buy two 12 volt batteries in serial.

If lead acid, either is fine.
If BMS controlled batteries, the correct voltage for the system is always recommended.