The Make block mBot Li-polymer battery(4.2V,1800mAh)is suitable for the mBot line-up of Makeblock. It takes only 1 hour to fully charge the battery and the battery can last up to 10 hours in the offline mode.
Battery capacity 1800mAh Nominal voltage is 3.7V
This item is Lithium cell / battery product (or contains Lithium cells / batteries) which needs to be shipped by sea freight. There will be extension of lead time (around 90 days) for global stock.