Mitsubishi has put a stop to its plug-in hybrid / electric vehicle production after a couple of battery-related incidents.

The decision was taken after a battery melted at a dealership, followed by another one which caught fire in an assembly plant. As a result, Mitsubishi has halted production of the Outlander PHEV and i-MiEV.

They haven't found out for sure why this happened and are currently analyzing whether a recall is in order. After a preliminary investigation, Mitsubishi thinks the issues are related to defects in battery manufacturing and all of the 4,000 Outlander PHEV units sold so far might be affected.

According to Mitsubishi spokeswoman Namie Koketsu, this problem will not delay the launch of the plug-in hybrid Outlander in U.S. scheduled for this year.

Mitsubishi stops plug-in hybrid/electric vehicle production due to battery issues