Battery Drain On A TDCI

[ZeTeCz09]

I need help! My focus tdci zetec 2009 battery drains overnight I got it checked needs a new battery because 70% of its life is gone but I’m not sure which is the best one to buy and been messed around a lot also I just want the best one available for this vehicle without having to disconnect my battery all the time. Also is this why my engine light is on?

[Focus_]

17 hours ago, ZeTeCz09 said:

I need help! My focus tdci zetec 2009 battery drains overnight I got it checked needs a new battery because 70% of its life is gone but I’m not sure which is the best one to buy and been messed around a lot also I just want the best one available for this vehicle without having to disconnect my battery all the time. Also is this why my engine light is on?

Calcium type is needed for the Focus. Look on Tayna batteries, Yuasa is my first choice. 

Most likely won't be why your engine light is on but get that scanned first to check if there's anything underlying that has damaged your current battery 

Have you had a parasitic drain test done? Also what do you mean by 70% of its life has gone? Is that voltage or CCA rating? 

Do you know how old the battery is that's in there?