Lithium battery protection board the role played by the following five points:
1, the voltage protection
Overcharge protection: protection board must have the ability to prevent cell voltage exceeds a preset value over-discharge protection: protection board must have the ability to prevent battery voltage at the end of the default value
2,Current capability (over-current protection, short circuit protection)
Protection board as the the lithium core security protection devices, both within the normal operating current range can be reliably work, but also to be able to act quickly when the battery is accidental short circuit or overcurrent, batteries are protected.
3, the on-resistance
Definition: When the charging current of 500mA, the on-resistance of the MOS tube.Due to the higher frequency of communications equipment, data transmission requires low error rate, rising and falling edges of the burst steep, the current output of the battery capacity and voltage stability, protection board MOS transistor switch is turned on the resistance to be small, single-core power-saving protection board usually 70mOhm to, such as too large communications equipment is not working properly, such as mobile phones during a call suddenly disconnected, the phone does not come on, the noise phenomenon.
4, since the current consumption
Definition: IC operating voltage of 3.6V, the no-load state, flows through the protection IC operating current, generally very small.The protection board consumable stream directly affect the battery standby time, usually provides self-protection board current consumption is less than 10 microamps.
5, the mechanical properties, the ability to adapt to the temperature, antistatic ability
Protection board must pass the national standard vibration, impact testing; protection board can work safely at -40 to 85 degrees, able to withstand non-contact ± 15KV ESD static test.
Good quality products from all-round to be accurate, careless of every little detail can bring to the product discount,Joy Battery as a lithium battery manufacturers in the production of lithium batteries on the one hand, with good quality feedback every new and old customers!
Jenny