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c) Charging Rechargeable Batteries with Balancer Connection ("BAL-CHG")
In contrast to the simple rechargeable battery programme "CHARGE" (see
chapter 11. b), the rechargeable battery programme "BAL-CHG" monitors the
voltage of every single cell of a multiple-cell lithium rechargeable battery and
corrects it accordingly if there are any deviations.
Besides the two normal rechargeable battery connections (plus/+ and minus/-), the balancer connector for the bat
-
tery must also be connected to the charger.
The balancer connection of the rechargeable battery may (depending on its build) be either connected directly to the
charger, or via the enclosed balancer board (with XH connections).
If the balancer connection of the rechargeable battery is connected directly to the charger, observe the proper
polarity. Usually, the minus pole of the balancer connection is applied with a black cable or is specifically marked.
This side of the balancer plug must point in the direction "-" of the charger's balancer socket 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, sixth, seventh and eighth cell
(depending on cell number).
The last connection pin of the balancer plug of the rechargeable battery 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
two rechargeable battery connections directly.
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 volt-
ages by pushing the button "INC", see figure on the right.
Briefly push the button "INC" or 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 lithium battery
packs mean that the cells may have different voltages once discharged.
Charging such a rechargeable lithium 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 dam-
ages the rechargeable battery as a result of a total discharge.
When charging a rechargeable lithium battery with different cell voltages without a balancer, there is the
risk of overcharging one cell.
3.90V 3.92 3.89V
0.00V 0.00 0.00V
LiPo BAL-CHG 3S
C= 3000mAh 3.0A
Summary of Contents for V-CHARGE 80GPS
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