SkyRC Quattro B6AC - Manual (Page 9)

WARNING AND SAFETY NOTES
Charging
During charge process, a specific quantity of electrical energy is fed into the battery. The
charge quantity is calculated by multiplying charge current by charge time. The maximum
permissible charge current varies depending on the battery type or its performance, and
can be found in the information by the battery manufacturer. Only batteries that are
expressly stated to be capable of quick-charge are allowed to be charged at rates higher
than the standard charge current.
Connect the battery to the terminal of the charger: red is positive and black is negative.
Due to the difference between resistance of cable and connector, the charger can not
detect resistance of the battery pack, the essential requirement for the charger to work
properly is that the charge lead should be of adequate conductor cross-section, and high
quality connectors which are normally gold-plated should be fitted to both ends.
Always refer to the manual by the battery manufacturer pertaining to charging methods.
Operate according to their recommended charging current and charging time. Lithium
batteries, in particular, should be charged strictly according to the manufacturer’s
instruction.
Close attention should be paid to the connection of Lithium batteries.
Do not attempt to disassemble the battery pack arbitrarily.
Please get highlighted that Lithium battery packs can be wired in parallel and in series. In
the parallel connection, the battery's capacity is calculated by multiplying single the
battery's capacity by the number of cells, bearing in mind that total voltage stays the same.
If the voltage is imbalanced, it may cause a fire or explosion. Lithium batteries are
recommended to charge in series.