Makita Lithium-ion BDF451RFE User Manual download pdf (Page 5)

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3

MORE POWER LESS WEIGHT

Lithium-ion’s weight saving

means 18 volt power can

be obtained by a battery

that weighs the same as a

12 volt Ni-MH battery. Reducing weight whilst

retaining power has obvious positive effects

on operator fatigue.

EXTENDED BATTERY LIFE

Lithium-ion batteries have greater

life spans than their Ni-MH or

Ni-Cad counterparts this is due to

the increased number of charging

cycles Lithium-ion offers and the run time

between charges.

2000+ CYCLES TESTED UNDER LOAD

Makita have obtained the cycle

life figure of 2000+ by testing the

Lithium-ion 18v 3.0Ah battery

under load. 50mm tapping screws

were screwed into standard pine, replicating

actual use conditions.

OPTIMUM CHARGING

Makita can achieve the massive

2000+ cycles from their Lithium-ion

batteries because of the Optimum

Charging System. This unique

system enables the battery and

charging system to 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.

AIR FLOW AROUND THE BATTERY

For optimum efficiency battery

cells need to be kept at a cool

temperature during charging.

To enable each cell in the battery

to be cooled the unit needs to be designed

in such a way that air flow around the battery

is maximised. Unlike some other Lithium-ion

battery types the Makita battery design

allows each cell to be kept at an optimum

temperature which extends the battery life.

Unbalanced cooling will give rise to cells

who’s capacities vary and discharge at

different rates, this can result in a battery

that has a reduced run time, cycle life

and capacity.

Makita Lithium-ion batteries have

balanced cooling = LONG LIFE.

Unbalanced cooling = SHORT LIFE.

Without cooling = SHORT LIFE.

430%

2000

CYCLES

2000

CYCLES

1300

CYCLES

430%

RUN TIME

40%

LESS WEIGHT

35%

LESS WEIGHT

40%

LESS WEIGHT

25%

LESS WEIGHT

300%

RUN TIME

200%

RUN TIME

200%

RUN TIME

2000

+

CYCLES

22min

CHARGE TIME

60min

CHARGE TIME

45min

CHARGE TIME

60min

CHARGE TIME

Enclosed cell

Hot

Cool

Hot

Cool

Out of air flow

Hot

Cool

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