The 3-AMP Premium Charger is designed for the Lobster Pickle Ball Machine and can recharge the device in 3-6 hours, plus offer 2-4 hours of extra play time. To use it, plug it into an outlet and attach it to the machine when it is mostly charged. Trickle charge technology ensures there is no risk of overcharging. Get your Pickle Ball Machine running quickly or extend its usage with the 3-AMP Premium Charger. Shipping details: Manufacturer drop-ships in 3 days with separate tracking numbers if there are other items in the order. Returns accepted with authorization, subject to 5% restocking fee and return shipping fees. No RR-series promotions.