Bonjour J'hésite http://www.aliexpress.com/snapshot/7630287028.html?orderId=74964567512829
ou http://fr.aliexpress.com/item/13s-BMS-48v-lithium-battery-BMS-48v-13s-PCM-for-electric-bike-lithium-battery48v-30a-battery/32328646828.html?spm=2114.13010208.99999999.261.RAt1dL merci Alain
