Mitsubishi has recalled 4,313 Outlander Plug-in Hybrid SUVs and 115 iMiEVs in Japan, Reuters reported. It’s recalling the vehicles to fix a potential defect in their lithium-ion battery packs that the company identified last month.

In April, Mitsubishi paused production of the Outlander PHEV, and some models of the iMiEV, after a battery fire at a dealership in Japan. The company’s investigation found that the culprit was a recently-introduced screening process on the assembly line.

This week, Mitsubishi told Reuters that the batteries’ risk of overheating is likely the result of battery cells having been damaged after they were dropped during production.

The Outlander batteries come from a joint venture between Mitsubishi and Kyoto-based GS Yuasa.

This is the second recall for the Outlander Plug-in Hybrid. In April, 3,839 units were recalled for an unrelated problem with the motor control software.

The plug-in Outlander is due to go on sale in the US late this year.

Sources: Reuters, Green Car Reports