Segment Information (Tables)

3 Months Ended

Mar. 31, 2019

Segment Information [Abstract]

Schedule of net revenues from manufacture of batteries by products

	Three months ended March 31,
	2018		2019
High power lithium batteries used in:
Electric vehicles	$	65,362	$	1,214,086
Light electric vehicles		1,508		-
Uninterruptable supplies		3,245,927		3,957,589
Total	$	3,312,797	$	5,171,675

Schedule of net revenues from manufacture of batteries by geographical areas

	Three months ended March 31,
	2018		2019
Mainland China	$	2,823,575	$	4,746,726
Europe		104,231		-
PRC Taiwan		324		452
Israel		383,772		121,678
USA		895		223,465
India		-		79,354
Total	$	3,312,797	$	5,171,675