DC Plug connector size: 5.5*2.1mm with 5.5*2.5mm, RCA 8mm and Female 3-Pin Inline 8mm Tips, please be sure the connector size is correct for you before buying. Charge only for 10S 36V Li-ion battery pack. Don’t use it for Lead Acid battery pack. Input: AC 100-240V 50/60Hz 2.5A; Output: DC 42V 2A. Short circuit protection/ over current protection/ over voltage protection. Automatically charger: Red LED light -- charging, Green LED light -- charged fully. Before purchasing, please be sure your battery is 10S 36V Li-ion battery, also be sure the connector size what you need is 5.5*2.1mm or 5.5*2.5mm, RCA 8mm or Female 3-Pin Inline 8mm.

PRODUCT SPECIFICATIONS:
Input : AC 100~240V 50/60Hz 2.5A
Output : DC 42V 2A
DC Connector Size: 5.5*2.1 mm With 5.5*2.5mm, RCA 8mm and Female 3-Pin Inline 8mm tips

LED Display:
Red:Charging
Green: Charged fully

PACKAGE INCLUDES:
1x 42V 2A Charger
1x US Mains Lead Cable
1x 5.5*2.5mm tip
1x RCA 8mm tip
1x Female 3-Pin Inline 8mm tip