# Estimate the Total Equal Lithium Load of a Battery

We usually see the chemical factor lithium printed on batteries and we start to wonder how a lot of it was loaded into the battery. Allow us go straight to the strategy on how to compute its lithium material. Originally we should set up the subsequent information: initial is the total equal lithium content material (ELC) for a single mobile of the battery, second is the sum of cells in the battery. To compute the ELC (in grams), ELC is equal to the battery’s power (in ampere-hours) multiply by .three then multiplied by the battery’s sum of cells.
Consider the situation of an HP Compaq 367759-001 battery with ten.8V, 8800 mAh, Li-ion complex specification as an instance.
Let us begin by computing the ELC making use of the method declared before. We know the energy rating to be 8800 mAh (milliamps) and we ought to convert it to Ah (amp hours) to utilize our method and we have eight.eight Ah (8800 mAh equals 8.8 Ah). And so we are now completely ready to compute the HP Compaq 367759-001 battery 1 cell ELC which is 8.8 x .three equals two.64 grams.
Additionally, we are necessary to build the sum of cells from our chosen battery. The battery’s voltage was given at ten.8V, we ought to divide that by the minimal voltage of one mobile then we get the sum of cells in series as a outcome. Following is to divide the battery’s offered capability (8800 mAh) by the nominal capacity of one cell and we get the resultant sum of cells in parallel. Now we can compute the sum of mobile in the battery by multiplying the series and parallel benefits. Of all the cells in HP 367759-001, the number 18650 is usually utilized. It has a common reduced voltage of 3.6V and 2200 mAh nominal capacity. We are now ready to compute the sum of cells in the HP Compaq 367759-001 battery with this: (8800 mAh/2200 mAh) x (10.8 volts/3.six volts) equals 12 cells.
20700 Battery
To conclude our endeavor to discover the whole ELC in HP Compaq 367759-001 battery, we require to do the subsequent computation. We have the info for one particular cell’s ELC at 2.64 grams and the sum of cells in the battery is twelve cells. And finally, compute the whole equivalent lithium load of the battery by carrying out this calculation: 2.64g x 12 = 31.68 grams.