Makita can achieve the massive 430% more run time from their Lithium-ion batteries because of the Optimum Charging System. This unique system enables the battery and charging system talk to each other via a built in CPU in the charger and CPU in the battery. These two key elements are vital in extending
the batteries working life.

Through this two way communication between charger and battery, the charger can recognise the battery and recall its charging history analyse the batteries condition and usage and charge the battery accordingly.

Depending on the batteries condition the Optimum Charging System will charge the battery quickly if it is new or in good condition, but if it is weakened due to cycle age or abuse the charger will gently charge the battery helping to extend the cycle life. Depending on the analysis of the battery, an infinite charging pattern will be created to perfectly match the battery's needs.

The Makita charger cools the battery during charging keeping an optimum charging temperature, which in conjunction with the intelligent nature of this system extends the battery run time to 430% and giving a rapid charge time of 22 minutes.