CTEK MXS 5.0 charging options - Engine, Transmission, Exhaust etc

I’ve just bought a CTEK MXS 5.0 battery charger. Not being au fait with battery jargon I’m confused as to which charging option to set with the MODE button, the alternatives are AGM or RECOND. The car is on its original battery and being a 2019 1.5 Sport Nav hasn’t got the i-ELOOP system. Any guidance / advice appreciated…

The CTEK US 0.8 battery charger is tailor made for small utility and recreational vehicles. It is the smallest 12 Volt charger in the CTEK program. The charger is a compact and fully automatic 6-step charger for 12 Volt lead-acid batteries from 1.2 32 Ah. The state of the art technology is perfect for charging batteries in motorcycles jet skis ATVs and lawnmowers. A patented maintenance charging cycle is suitable for normal sized car batteries up to 100 Ah.

CTEK US 0.8 Battery Charger

CTEK 40-206 MXS 5.0 Battery Charger

MXS 5.0

MXS 5.0

CTEK MXS 5.0 Battery Charger Value Pack with Carry Case Bag

CTEK MXS 5.0 TEST&CHARGE - Ultraray Motorsports

12 Volt CTEK MXS 5.0 Battery Charger 40-206

The MXS 5 0 is an advanced microprocessor controlled battery charger with automatic temperature compensation built in providing unrivalled performance