How is the battery pack connected in series?
Can be the first string into the same battery, and then parallel. Such as: 1.5 volts battery 9, can be a group of three in series, into 4.5 volts, then the three groups in parallel, each group of positive phase, negative phase. The total voltage of 4.5 volts, the capacity of a battery 3 times.
Two 1.5 volts, 800 mA / h battery in parallel, the voltage is still 1.5 volts, the capacity becomes 1600 mA / h.
With the same battery (voltage, capacity), the positive phase is connected, the negative phase is connected.
