How to charge three cell phone batteries in series

You must have the corresponding battery box to ensure that the battery connection in series is normal and it can be charged with a charger. One section of its voltage is 3.7v, while the voltage turns into 11.1v as three batteries in series, which is available with a 12v charger.

The lithium battery is a kind of anode materials for lithium metal or lithium alloy.Primary batteries that use a non-aqueous electrolyte solution are different from rechargeable lithium-ion batteries and lithium-ion polymer batteries.The inventor of the lithium battery is Edison.

B - connect to the first battery cathode, 3.6 V after the first cell of the positive and the second battery cathode, 7.2 V after the second battery positive electrode and the third battery cathode, 10.8 V after the third battery anode;P + for the output positive, negative P - for output.

First, connect the three cells in series.The whole battery negative pole B - on the protection board,the connection point next B - is 3.6 V to the protection board, then a connection point is 7.2 V to the protection board,the last is 10.8 V (B + the whole battery pack in the anode).P + is the whole battery PACK in the anode, P - is the negative pole of the battery PACK.

First of all , prepare two pieces of 6v battery.The voltage of the two batteries should be the same and fully charged.Use a multimeter if you are not sure.

Multimeter measurement must use dc voltage file, the range of 10V.In this way, the measured data is more accurate. If 6V is not satisfied, replace it.

Series circuit needs a battery + pole connected to another battery - pole, ensure good contact, because of series circuit voltage is added, parallel connection circuit of voltage is the same.

After connection you can use a multimete to determine.Be sure the multimeter is transferred to 20 v, Check to see if the voltage is 12V. If the pointer wobbles, tighten the wiring.

This serial number of the battery can be used, pay attention to the differences between positive and negative pole ,Then control the use time, timely charging.

Series is the anode to the cathode, the cathode anode.3 series is only 36 volts.No matter what the battery, as long as it is of the same type battery can be made series parallel combination.In series, the voltage increase capacity remains the same.In parallel, voltage constant capacity increase.

As the example you mentioned:

Nine batteries, 3 in series and 3 in parallel, for example capacity is 1000mah voltage 1.2 v,3 in series and capacity is three times the battery capacity of 3000mah.The voltage is constant.3 more in series are three times more than the voltage of the battery voltage of 3.6 v.The same capacity,combined nine capacity is 3000mah battery voltage of 3.6 v.

(1) The capacity of the battery pack is fixed, nine batteries are nine times the capacity of one.

(2)Parallel voltage constant, battery cells in series voltage.

A normal battery voltage of 1.5 V,three in parallel still are 1.5 V,Then three by three in series, the voltage is 3×1.5=4.5（V）

The positive pole connects to another negative pole, then this positive pole connects to another negative pole, just left the positive and negative pole are available.

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