SplashDrone 3+ battery maintenance and charging tutorial video for Balanced Charger v4.0

Note: Please note if there is any new charger firmware (e.g v4.2 published on Feb 28, 2020). You can check all the updates here: http://bit.ly/39w7UtI Buy the best waterproof drones for filming and fishing in the ocean: http://bit.ly/32Ui98x Follow us on social media YouTube https://www.youtube.com/swellpro?sub_... Facebook   / swellpro   Instagram   / swellpro   Twitter   / swellpro_drone   Official site http://www.swellpro.com Official store https://store.swellpro.com/ #SwellPro #TheBest #Waterproofdrones