Lithium battery external expanding discharge mode
You can expand the charger' s discharge power capacity by connecting the external capacity resistance. Whal should pay
special anention is tha1. when expanding discharge, the balance port must connect 10 the bal!cry and the expanding
cap:1city resi�tance
R
should be series connected
to
the positive pole(Sce m the followmg diagram)
'
Dec Inc
Hatt type Start/Enter
stop
> 3 seconds
Discharge Lithium battery. The left side of the first line set the type ofba11ery(LiPo, Lila
or LiFe) and the value on the right side shows the final discharge voltage of each cell.
The value on the left side of second line sels the charge current and on the right side of
second line, it shows AUTO. The system will check cell count automatically by cell
balance port' s voltage.
Per-cell final voltage: LiPo(3.00
-
4
.20
\f
)
,
Lilo(2.S0 -4. I0V), LiFe(2.00 -3.60\')
Discharge current: 0.05 -7A, Cell count: I -6S
Discharge process. The charger allow its user to alter the discharging current during the
process. Press
Start/Enter
to make the discharge current blink then press
Inc►
to
increase or press
◄
Dec
10 decrease
the
value and press
Start/Enter
to confirm
the
alteration. You can
stop
discharging at any time by pressing
Batt
type/Stop.Press
Inc►
to
number discharge battery
display each cell'
s
voltage (see 1he balance voltage information) and press
◄
Dec
to
of cells current voltage display the General Status information.
In this mode, the lithium battery discharges through charger and R, P= Pc+ Pr ,(Pc is charger' s wasted power capacity; Pc
is wasted power capacity by resistance). Pc is limited by the set charger' s maximum discharge power capacity(<20W).
But in the first 30 seconds of discharge startup, Pc can be reached IO0W. This characteristic is tend to active some
resistance loads which shows a remarkably increase in resistance value along with increase of the temperature, such as
bulbs.
External capacity resistance's setting:
R = Vbat / lset
P=Vbat • !set;
R: The value of the external capacity resistance
P: Rating capacity of the external capacity resistance
For example: discharge a pack of 20\f lithium battery at 7 A
R = 20V
17A
= 2.850
P=20V X 7A= 140W
14
