Businesspro Mall M5Stack Battery Bottom 110mAh for M5Stack (行貨1年保養) Core BOTTOM is the bottom part of M5Core like M5Basic and M5 GRAY, with M-BUS socket and extend pins on the side, also include a Lipo battery . If you want to b Product #: businesspro-M5Stack Battery Bottom 110mAh for M5Stack (行貨1年保養) Regular price: $HKD$58.0 Available from: Businesspro MallIn stock