Constant current charge
Automatic shut down when fully charged
12V/17AH sealed lead acid battery
Starting current: 400A
Peak current: 900A
Voltmeter: internal battery status
Working light
Color box: 35x14x35cm
(A):Packing size: 39x38x39.5CM  2PCS/CTN  with air compressor
20FT: 888PCS         40FT:1912PCS         40HQ:2220PCS
(B):Packing size: 39x27x39.5 CM  2PCS/CTN   without air compressor
20FT:1250PCS         40FT:269PCS         40HQ:3124PCS