Kia Optima (K5) Battery Size

You can find the appropriate battery size for the Kia Optima (K5) to the left, just scroll to your year and check the trim.

The years available stretch from through to 2019 and by clicking a link you can view the different battery types for each trim.

Replacing the ageing and out of style Credos model, the Optima is also sold in different regions as the K5, the Magentis and the Lotze.

It's a mid-size car like the more popular Chevrolet Malibu and Toyota Camry, an important sector of cars for manufacturers due to its large sales potential.

Originally the first-generation Optima did not sell well and a lot of the blame can be put down to its terrible safety rating given to it by the IIHS.

It only scored 1 out of 5 stars, let down by the side and seat safety tests - the outdated styling didn't help either - the only good point about the car was the small price tag.

With the introduction of the second-generation Optima the platform was massively upgraded helping the safety rating rise to 5 out of 5 stars with NHTSA, 4 out of 5 with EuroNCAP and a massive improvement to 3 out of 5 stars with IIHS.

Sales moved upward slightly but it wasn't until the third-generation car entered showrooms that the sales quadrupled.

Thanks to the move to the Hyundai Sonata platform, a near-perfect safety score and a serious improvement in the company's image buyers were queuing up for the new Kia Optima.

Now in its fifth-generation, the car is offered with a range of new safety aids such as blind-spot-detection and collision-avoidance-assist to help it keep its incredible safety rating.