Battery size/brand?

[Strummagnet]

Just a quick-ish question.

Planning on changing batteries as the one I have (Blue Varta) is no longer holding charge. I did suspect a parasitic drain but no evidence of this, though my car electrical skills are pretty minimal.

The car is normally unlocked as in an unpinchable location. Wondering if being unlocked it may be drawing more power than when locked?

Using battery charger it reports a healthy battery but after 24 hours only holding around 10V.

Going for the silver model.

[MikkiJayne]

It'll go to sleep after about 30 minutes of inactivity so shouldn't continue to draw power unless there's a fault stopping it sleeping. Mine also stays unlocked 99% of the time and it'll still start after 3 weeks no problem, although I do tend to leave the CTEK charger on it for maintenance. If yours is kept indoors, a CTEK convenience socket in the right hand boot trim is a nice easy way to connect a charger to keep the battery healthy.