Lipo Battery Cell Voltage Difference

Reasonable lipo cells voltage difference.

Lipo battery cell voltage difference.

For example almost all lithium polymer batteries are 3 7v or 4 2v batteries. A lipo cell has a nominal voltage of 3 7v. I am now able to charge 2 5s 5ah 2 6s 5ah simultaneously at 2c wich makes me a happy camper. If left on charge for long enough the battery will eventually reach 4 20 v when the current drops to zero.

This is sometimes why you will hear people talk about a 2s battery pack it means that there are 2 cells in s eries. For my 15 rule above a 15 state of charge difference in a lipo between 3 7v cell and 4 0 v cell corresponds to a voltage difference of 0 08v cell. Different battery companies mark their lipos in different ways but most people tend to refer to their batteries as 1s 2s 3s etc. For my 25 rule above the voltage difference in that 3 7v cell to 4 0v cell range is more like 0 12v cell.

A lipo cell battery should never be discharged below 3 0v. At the battery terminals it is 4 2 v less voltage drop in the wiring ie. A lipo has a resting or nominal voltage of 3 7v versus a lihv which has a storage voltage of 3 8v. For the 7 4v battery above that means that there are two cells in series which means the voltage gets added together.

The primary difference between the two is that a lipo cell has a fully charged voltage of 4 2v compared to a lihv cell which has a voltage of 4 35v at full charge. Depending on the design and chemistry of your lithium cell you may see them sold under different nominal voltages. What this means is that the maximum voltage of the cell is 4 2v and that the nominal average voltage is 3 7v as the battery is used the voltage will drop lower and lower until the minimum which. A lipo cell has a nominal voltage of 3 7v and a lipo cell 1 cell 1s 3 7v.

This is sometimes why you will hear people talk about a 4s battery pack it means that there are 4 cells in series. A couple of weeks ago i changed from zippy lipos to hyperion g3s and from a robbe powerpeak infinity 3 charger to a fusion emperor pro. A fully charged lipo voltage is 4 2v per cell hv lipo can be charged to 4 35v. For the 14 8v battery above that means that there are four cells in series which means the voltage gets added together.

Lipo battery voltage is specified by the number of cells in series. Each cell has a nominal voltage 3 7 v.