VOLTCRAFT V-CHARGE 300 TOUCH Handbuch Seite 81

Important!
Only a battery pack with exactly the same voltage for each cell provides the maxi-
mum 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 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 damages the 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.
Example:
A dual-cell LiPo battery pack charged without the use of a balancer appears to have a voltage
of 8.4 V and thus appears to be fully charged. The individual cells, however, have a voltage of
4.5 V and 3.9 V (one cell is dangerously overcharged, the other half discharged).
A cell overcharged in this way may leak, expand or, in a worst case scenario, catch fire or
explode!
If this LiPo rechargeable battery is inserted, e.g. in a model plane, the flying time will be very
short, since the voltage of the half-charged cell will break down quickly and the rechargeable
battery will not supply any current anymore.
If your rechargeable lithium battery has a balancer connection, it must be con-
nected to the charger at all times in addition to the two regular rechargeable battery
connections (plus/+ and minus/-) (via the balancer board); always use the charge
programme "BALANCE" then rather than the "CHARGE" one.
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