can you mix battery brands

[fatboyracing 10+ year member]

like it says can you or will this mess stuff up

Click to read more...

 

[loopkiller 10+ year member]

No

 

[rumblebee2 10+ year member]

a lot of people do, but, i don't know.

 

[tommyk90 5,000+ posts]

You can as long as they are the same battery type.

But most manufacturers will tell you to keep them charged and/or drive the vehicle regularly so the different batteries won't drain each other out (different internal resistances, float voltages, etc.)

 

[gotparts90 10+ year member]

the silly engineers at the place I used to work at told me if you dont have matching batts down to the lot number use a relay or isolator to get the most life out of them. The match ones will act close enough to one unit to be ok any other way will work but may be robbing you of some battery life. O by the way if you search this topic there are a million threads already

 

[only126db 10+ year member]

like it says can you or will this mess stuff up

Different drain and charge levels possible.

Damage to your vehicle or system no.

Different cca/ca probably shouldn't be mixed just to be safe.

 

[bulldoggg 10+ year member]

Yes you can but if you run them without a isolator you take the chance that your batts won't last as long as they would with one.

 

[bigbangtheory 5,000+ posts]

Been doing it for years.........without an isolator and never had one problem with my batteries.