Is it recommended that we clean the connector end of the batteries?

[Newme]

And if so...how?

 

[Kembial]

Not sure just how clean you want it, but I'm pretty happy with just wiping it with the toilet paper I use to clean up while refilling juice.
Wipe the outside threads a bit, then kind of push it inside the ring and give it a twist or two. I don't go inside the batt hole, though... haven't noticed any need.
I also do this on the batt end of the cartos.

Generally get a little black dirt off during cleaning, and it's just whenever I happen to feel like doing so. Nothing routine.

 

[MrHyde]

I use an old electric toothbrush...it works wonders lol

 

[starsong]

I do the same as Kembial (except with a tissue) but only once in awhile. I clean the battery end of a cart to make sure it doesn't get on the battery, so the bats stay very clean.
I imagine if someone is in the habit of sticking a battery without a carto into their pocket or floating at the bottom of a purse, then it could pick up some dirt/dust/lint/etc. and might need more cleaning, but mine is either in the pouch or the pcc when I'm out, or in a cup on my desk when not being used.

 

[Frick]

Mine rattles around in whatever pocket I throw it in, along with keys, change, etc. and I've never noticed it getting dirty.

I do clean both the carto end and the battery end after I refill, though, just to make sure they don't have juice on them that might get sucked into the battery. I just twist both on a paper towel or tissue.

 

[Newme]

I wipe off my cartos really well too. I was just checking though about the battery.

 

[SmokingBullet]

I found unscented baby wipes to be killer on keeping hardware and your hands clean.

Not sure just how clean you want it, but I'm pretty happy with just wiping it with the toilet paper I use to clean up while refilling juice.
Wipe the outside threads a bit, then kind of push it inside the ring and give it a twist or two. I don't go inside the batt hole, though... haven't noticed any need.
I also do this on the batt end of the cartos.

Generally get a little black dirt off during cleaning, and it's just whenever I happen to feel like doing so. Nothing routine.