Trakpower VR-1 Dual Racing Charger User Manual download pdf (Page 13)

G. IMPULSE CHARGE:

Refer to diagram at right.

This feature functions in Step Charge mode only,

and charges the battery at a current equal to

the charge current setting x 1.5 for 0.5 seconds,

every 3 seconds. The charge current at all other

times is as set in the Step Charge screen on page

12. The impulse charge method is much the

opposite of the reﬂ ex charge method explained

below. Instead of applying high level negative

charge pulses to the battery for short intervals,

VR-1 applies high level positive charge pulses

at regular intervals. And as with reﬂ ex mode,

the impulse method is believed by some to help clear a cell’s internal plates from build-up of

oxidizing gas bubbles, allowing the batteries to perform better. Decide which steps to have the

impulse mode function, which can be any combination of steps 1, 2 or 3. Impulse charge does

NOT function in step 4. See the diagram below for how to set this function.

i. Rotate dial to Impulse and place the cursor on step 1.

Press and rotate dial until the “ ” symbol appears next

to the 1.

ii. Rotate dial to move cursor to step 2. Press and rotate

dial until the “ ” symbol appears next to the 2. Press to

conﬁ rm. Repeat for step 3 if desired.

H. REFLEX CHARGE:

As with the impulse charge mode, reﬂ ex charge can be used in the Step Mode

charge mode. Decide which steps to have the reﬂ ex charge mode function, which can be any

combinations of steps 1, 2 or 3. Reﬂ ex charge does NOT function during step 4. Setting this

feature is the same as Impulse charge mode. See the above diagram for how to set this feature.

Note that impulse charge and reﬂ ex charge can be applied to the battery at the same time!

To start step charge mode:

i. Press the jog dial once on the Step Charge icon. A delay

screen will appear showing all of the settings at the

bottom of the screen. If these settings are correct, either

allow the timer to expire or press and hold the dial to

begin. If these settings are incorrect, press ESC to back

out and make the necessary changes.

ii. Before the VR-1 begins the Step Charge process the

battery will perform a pre-discharge process. This

pre-discharge process discharges the battery to a safe

discharge level. Once the discharge cut-off voltage has

been reached there will be a 1 minute delay prior to

initializing the Step Charge.

iii. During the Step Charge process, the current step will be

displayed on the screen. See picture at right. There will

also be a one minute delay between each step.

IMPULSE CHARGE

7.5A

TIME

0.5 sec

Impulse current pulse

Normal charge

current setting

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 23 24

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Trakpower VR-1 Dual Racing Charger User Manual Page 13

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