e bike battery 48v 20ah upgrade electric bike batteries pack 48volt 1000w l390 reention dorado 21700

quick details type:lithium battery place of origin:guangdong, china model number:jd4820 brand name:junda cycle life: 600-800 times warranty: 1 years certificate: ce/rosh/msds/un38.3 application: electric bike/mountain ebike combo set offered: 4 packaging & delivery selling units: single item package type: include battery, charger, keys etc, 1 battery pack for 1 carton. lead time: quantity(packs) 1 - 5 >5 est. time(days) 14 to be negotiated single package size: 50x17x25 cm single gross weight: 6.000 kg.syi