Jazzyjess20

Hi just bought my 2 year old a used oset electric trials bike, the guy we bought it of had already fully charged it when we bought it. So yesterday my son got a good go on it until it ran out of charge. Just come to charge it and not sure how, do I take the battery out of the Velcro pouch thing orrrr?? I'm a complete newbie to these and a single mum lol so not much idea. Ha x Here he is giving it a go yesterday