Contents
What is battery protection board?
A good PCM or PCB ( protection circuit module or board ) is like a “brain” of the Lithium battery pack. It protects the Lithium battery pack from overcharging, over-discharging, and over-drain, which results in a good backup and healthy battery life. It also protects the Battery pack from explosion, fire, and damage.
What is 3S lithium battery?
So, if a LiPo battery has 3S, it means that the voltage is tripled to 11.1V. The bigger the voltage is, the more significant potential the battery has to push more current.
What is the difference between 3S and 4S LiPo?
Obviously, the biggest difference is the voltage delivered to the motors. A 3S Lipo has a nominal voltage of 11.1V or 12.6V when fully charged, while a 4S Lipo has a nominal voltage of 14.8V and 16.8V at full charge. That means the motor spins approximately 28,900 times a minute without any propellers.
How to make a 3s battery pack with 18650 cells?
We will connect the individual cells in series in order to create the 3S battery pack with a nominal voltage of 11.1V. On the schematic, you can see that we need to connect the negative side of the first battery to the positive side of the second. Then the negative side of the second battery gets connected to the positive side of the third one.
How to charge an 18650 RC battery pack?
In order to properly charge the pack and be able to monitor each cell voltage, we need to add a balance connector. This is an JST-XH 4 pin connector. One wire is connected to the negative side of the battery pack, while the other three are connected to the positive side of each of the three individual cells.
Can You recover an 18650 battery from a laptop?
Many salvaged 18650 cells from used laptop batteries are unusable due to them not being able to take a charge as they are at 0v. But there is a way to recover them. These cells have had their protection fuse popped which disconnects the positive battery terminal.
What can you do with a 3s battery?
Hey! everyone My name is Steve . 3S batteries are widely used in many application such as Bluetooth Speaker , Rc Cars & and many things you can think of . 1 Person Made This Project! Robear51 made it!