BMS lithium polymer battery protection board 5A for 2x 18650 7.4V

Overview of

• Overcharge protection
• Over-discharge protection
• Overcurrent protection
• Short circuit protection

The module is suitable for various types of 3.7V lithium batteries.
Technical parameters:
Charging voltage: 8.4v-9v
Detection voltage for overcharge: 4.25-4.35V ± 0.05V
Detection voltage for deep discharge: 2.5-3.0V ± 0.05V
Maximum operating current: 5A
Standby current: less than 5µA
Internal resistance: <300mΩ
Effective life: 50.000 hours or more
Operating temperature: -40 to 50 ℃
Size: approx. 38 x 8 x 2.5mm
Connection
B + B-: Battery
P + P-: Charge / discharge terminal
BM: Battery connection point
B +: Battery + positive
B-: Battery - negative
P+: Output / charge +
P-: Output / charge -
Various wiring diagrams and instructions can be found online for specific applications and cabling.

The HX-2S-01 is a charge controller for lithium-ion batteries with a voltage of 2 cells (2S). A charge controller is an electronic device used to control and monitor the charging process of batteries in order to extend their service life and ensure safety during the charging process.
Voltage monitoring: The charge controller continuously monitors the voltage of the battery cells. With lithium-ion batteries, it is important to keep the cell voltages within certain limits to prevent overcharging or deep discharging.
Charging algorithm: The charge controller uses a specific charging algorithm to charge the battery cells safely and efficiently. This can include constant current, constant voltage or mixed charging methods, depending on which phase of the charging cycle the battery has reached.
Balancing: Two cells can be used with this module. These cells may charge or discharge slightly differently over time. A charge controller has a balancing mechanism that ensures that both cells are brought to the same voltage to ensure even performance and service life.

Scope of delivery

• 1x Lithium battery protection board