Hi all, Battery maintenance question for you all! I originally had 2 Varta g8 starter batteries (and two varta leisure batteries connected with a splitter) before leaving on a long term trip. The splitter soon started to malfunction and I soon decided to skip the splitter and to connect both 24 volt systems permanently. I know, big no no, but I figured it would matter as we would be driving on a daily basis so all systems would be topped up. Anyhow, last year October my batteries were dead, no surprise! So I ordered two new g8s - with shipping totalling 200 EUR! I currently don't drive the car that much so I wanted to take care of the batteries so I purchased a trickle charger. Now I know many buy cteks but I bought a Bosch c7, mainly as it handles 24 volts within my amperage range so I could charge them at the same time. I connected my trickle charger to the battery and left the car for while. Some months later, I realise the batteries were deader than dead! There was like 3 volts in them! First question: What could have gone wrong, I thought it would be okay to leave a proper trickle charger on them, no? So now I bought the same batteries from the same supplier and they are 250 EUR delivered to my door (Waw, 25 % increase on year!) I unbox the battery and I immediatly see a picture stating: DANGER, immediatly unplug the red transportation plugs!) Strange? I didn't same to have gotten that warning when I received my two other batteries just a year before, therefor I hadn't unplugged the four red taps. Question 2: What are these taps for and why is it so important to remove them? Might this have contributed to my previous batteries going bad so fast on the charger? If this is the case I am going to complain, although I have nothing to proof! Thanks in advance!