Gem e2

hi,
new to this forum as of last week.
I’ve been posting a few questions I have- no replays ;(

Hows the go to person with e2 queries ?

Aloha from The Big Island of Hawaii, where the nearest GEM car dealer is in Honolulu

I have a two seater GEM car, which I bought used in 2008. The Gel batteries we’re replace 18 months ago with red 12 volt acid batteries. I watch the water closely, and just topped off a few days ago. After charging all night, the car was pooped out, and only went 10 mph or less. I now have two yellow lights and a blinking green light. Underneath when you look under from left tire. Before, when charging, I wonky had 2 solid yellow lights. All batteries are 13 V or over, except on which reads 11.8 V. Any suggestions?

Thanks

Bob Wales

Also, the terminals connecting 2 of the under seat batteries were loose enough to move cable easily. I tightened all up.