Is there a consensus for a good quality battery charger/maintainer, preferably with a link to purchase? And what kind of batteries do we have in new Defenders (AGM?)? [I read in one of the Amazon descriptions that you had to select the battery type for the charger/maintainer.] Thanks in advance.

 

They are AGM batteries. I purchased this one based on many recommendations and it works very well. Upon the forums recommendations and experiences, I charged the defender's battery up overnight, the first night I brought it home. They often come from the dealer with moderately depleted batteries from all the pre-delivery tinkering and unless you drive some long early distances may not have the chance to fully charge. There are reports of software updates and other tech things not working well on less than fully charged batteries.

 

Battery Tender.
Using them for 30+ years
Have a few of them and keep my motorcycles, truck, jeep, etc on them when not using daily.
They make units for Lead Acid, Lithium, AGM and Gel.

 

I use CTEK chargers/maintainers. Always have had great luck with them and they are actually sold at my JLR dealer who recommends them for the vehicles. I was amazed that a fully depleted battery on my LR4 could be charged with a small unit to full charge overnight.

 

how do you connect them?

 

A pigtail connector to the under-hood terminals. https://www.batterytender.com/Ring-Terminal-Harness

 

I have an oem Land Rover CTEK battery tender but it connects to a cigarette lighter but couldn't find where I can plug it in as it all powers off- the outlets.