c) Charging Batteries with Balancer Connection („BALANCE")
In contrast to the simple rechargeable battery programme „CHARGE" (see chapter 11. b), the rechargeable battery
programme „BALANCE" motors the voltage of every single cell of a multiple-cell lithium battery pack and corrects it
accordingly if there are any deviations.
Besides the two normal battery connections (plus/+ and
minus/-), the balancer connector for the battery must
also be connected to the charger, see example picture
on the right.
Always observe the correct polarity.
Usually, the minus pole of the balancer connection is
applied with a black cable. This side of the balancer
plug must point in the direction „-" and of course also be
pushed onto this connection pin.
If you use self-customised rechargeable batteries, the balancer plug must be correctly assigned.
The black cable is the minus pole of the first cell. The next connection pin is the plus pole of the first cell; the
respective next connection pin is the plus pole of the second, third, fourth, fifth and sixth cell (depending on
cell number).
The last connection pin of the balancer plug therefore is the plus pole of the last cell. Therefore, the same
voltage can be measured between the two outer pins of the balancer plug as at the rechargeable battery
connections directly.
Also observe that the balancer plug is always connected to the right connection that belongs to the respective
channel (1, 2, 3 or 4).
The balancer connection that belongs to the charge/discharge channel is below the 4 mm sockets of the
respective rechargeable battery connection in each case.
The remaining procedure for charging is described in chapter 11. b).
If a lithium rechargeable battery with balancer plug is connected to the charger, you can switch to the display
of the individual cell voltages by pushing the button „INC". Briefly push the button „START/ENTER" for the
charger to return to the normal display.
Important!
Only a battery pack with exactly the same voltage for each cell provides the maximum performance and
service life for a model airplane/vehicle.
Variations in the quality of the materials used and the internal structure of multiple-cell LiPo/LiIon/LiFe
battery packs mean that the cells may have different voltages once discharged.
Charging such a LiPo battery without balancer will quickly cause large differences of cell voltage. This not
only shortens the operating life (as one cell may have a very low voltage), but also damages the battery
as a result of a total discharge.
In addition, without the balancer, there is the danger of overcharging when charging such different cells
(with different voltage): The maximum permitted voltage of a LiPo cell of approx. 4.2 V (±1%) is exceeded
(data for LiIon and LiFe rechargeable batteries, see chapter 7).
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