AP Moller-Maersk is involved in a partnership with battery cell maker Freyr.

The Danish liner giant has been publicly lukewarm about the prospects for batteries on large containerships, and sources told TradeWinds that Maersk is more interested in transporting Freyr’s products than using them.

Electrifying vessels that cannot plug into a shoreside connection every day seems a far-off prospect, but Geir Bjorkeli of battery supplier Corvus Energy said his company is in early-stage talks with a major liner company.