The BEC819 series (BEC819系), branded "DENCHA" (Dual Energy Charge Train), is a two-car battery electric multiple unit (BEMU) train operated by Kyushu Railway Company (JR Kyushu) on inter-running services over the Fukuhoku Yutaka Line and Chikuhō Main Line in Fukuoka Prefecture in northern Kyushu, Japan, since October 2016, and also on the Kashii Line.

Based on the earlier 817 series electric multiple unit (EMU) trains,[1] styling of the trains was overseen by industrial designer Eiji Mitooka.

[3][4][5] These newer vehicles used on the Kashii Line belong to the "300" series (11 trainsets in total), while the slightly older ones used on the Wakamatsu Line are the "0" series (7 trainsets in total).

[8] Initial details of the new train were formally announced by JR Kyushu on 29 January 2016.

[8] A pre-series two-car train was delivered from Hitachi's factory in Yamaguchi Prefecture in April 2016.