For all our tennis ball machines can accept the options as listed below. 
CAUTION : RED WIRE MUST BE CONNECTED TO BATTERY +VE TERMINAL (RED MARKING ON BATTERY), OR TO RED WIRE IF USING AC POWER OPTION.

WRONG CONNECTION WILL RESULT IN BURNT ELECTRONIC CONTROL BOARD !

Option 1 – Internal Battery (Default)

A battery sits in the power cage and is charged through the "CHARGER" socket at control panel. 

Internal battery

Pictures for option 1 - Battery inside machine, accessible by removing wheel and unscrewing plate. 


Option 2 – External Battery Kit (+ S$75)

This allows swapping of batteries, or use one with a higher capacity (12V with higher than 12AH capacity) for more hours of uninterrupted training. Charging is done at the socket attached to the battery cable.  It also facilitates charging without the need to bring machine to charging location. No internal battery for this option.

External battery kit

External battery

Pictures for option 2 – External battery kit. Install by removing wheel, unscrewing plate and connecting 2 wires (red-red and black-black). 


Option 3 – External Mains Power Module (+ S$170)

This option allows unlimited court time by drawing from AC power.  It accepts universal voltage 100V ~ 230V AC.  No internal battery for this option.


Picture for option 3 – Install by removing wheel, unscrewing plate and connecting 2 wires (red-red and black-black). 


Option 4 – Mains and Battery Hybrid (+ S$230)

This is our most advanced configuration. You can make use of both external batteries and AC power source. This provides complete peace of mind, allowing you to draw energy from a mains AC socket when available, but switch instantly to a battery kit if you need to.  No internal battery for this option.


Picture for option 4 – Install by removing wheel, unscrewing plate and connecting 2 wires (red-red and black-black).