We advise you to charge the battery of your Lobster tennis ball machine before using it or right after playing. If you use the machine for an hour, 2 or 3hrs maximum of charging using the 2-Amp fast charger will suffice.
When charging, light on charger will be red and when full light on charger will be green.
In any case, please make sure to regularly charge your machine - even if you are not using it and if it is only for 15 minutes. Not charging it regularly (i.e. less than once a month) will cause the battery to deplete and ultimately go flat which will require replacing it with a new one.
For Lobster Elite Grand Series: if you are not able to charge your machine for more than 3 weeks (as going away for holidays, unable to play due to injury, etc.), please discable the master switch of your machine.
You will find it on the left-hand corner under the red plastic case (the "off" position is when the top is sticking out and the bottom is pushed in). Make sure to activate it before charge or using your Lobster again.