type: lithium battery voltage: capacity: 10 - 20ah type: dorado battery voltage: 48v cycle life: 800-1000 times warranty: 2 years payment term: t/t or western union certificate: ce/rosh/msds/un38. 3 application: electric bike/mountain ebike packaging & delivery selling units: single item single package size: 42x32x25 cm single gross weight: 6.000 kg package type:1 set/carton suitable ncm modcow mountain electric bike delivery time: by hk ups will take 4-5 business days;by special line will take 10-12 days;by sea will take 30-45 days fedex/dhl/ups for samples, door-to-door; by air or by sea for batch goods, for fcl; airport/ sea port receiving;customers specifying freight forwarders or negotiable delivery methods.syi