electric bike battery pack 52v 48v 36v 21ah 20ah 18ah 15ah 12ah 18650 polly 1000w motor replacement lithium batteries ip67 waterproof opitio

un38.8,msds certificated industrial batteries: every lithium battery have passed the qc appearance and function test before shipment. we can customize batteries according to your request. grade a 18650 lithium ion battery cells: cattery cells ensure the long life expectancy. the shell is made of lightweight and durable plastic that doesn't overheat with use. ip67 waterproof shell & safety: lock with keys securely locks the mount on bike frame, prevents the 36v battery from being stolen. easy to install & different capacity for you to choose fast shipment and 1-year warranty: we have professional manufacture factory, which aims to provide you ebike batteries and service . if you have any problem, feel to contact us..syi