Das is auch mein Gedanke. In meiner SM 07 ist sicher eine Gelbatterie drinnen,
Na da muss ich mich direkt mal melden. Besitze selbst eine 07er SM. Und befasse mich mit dem Neukauf einer Bat.da meine originale restlos tot ist.
Diese besagte 07er hat eine Wartungsfreie Säurebatterie drin. Nix Gel. So wie von Klaus1076 bereits beschrieben.
Bei Louis kannst du ne Gel kaufen, entsprechend teuer.Diese ist aber original nicht verbaut.
Wer des englischen mächtig ist:
Auszug von der Yuasa website
Maintenance Free<img src="http://www.yuasabatteries.com/images/maintenance.jpg" align="right" />
Absorbed Glass Mat (AGM) Technology is an advanced battery design used in Yuasa's Maintenance Free Batteries that eliminates water loss. Once it's filled with acid the battery is permanently sealed - so you'll never need to fill it with water or check the acid level.
<img src="http://www.yuasabatteries.com/images/maintenance_free.gif" align="left" /> Long Life
Because of its lead calcium design, the AGM battery will hold its specific gravity more than three times longer than conventional lead antimony types. This means much longer periods between charges when the battery is used in a standby mode, like winter storage.
And to remain factory-fresh the AGM battery is shipped dry along with its own pack of high-gravity acid that's added at the time of installation.
Sealed, Non-spillable
Once filled with acid from its special packs, the AGM battery is virtually maintenance free. It's totally sealed and all of the acid is absorbed in the special plates and separators, so there is no need to worry about acid leaks on valuable vehicle parts and accessories.