Protection Circuit Module (PCM) with Equilibrium Function for 7.4V Li-Ion Battery Pack (20 Amp limit, PCM-L02S20-265)

Protection Circuit Module for 2 Cells (7.4V) Li-Ion Pack with 20A Limit

This protection circuit is specially designed for 7.4V Li-Ion / polymer Li-Ion Battery pack with 20A discharging rate. Different than normal PCB, it provides equilibrium function after battery pack is fully charged. This is to balance each cell of the pack to make sure all cells are within 4.22V. With this function, Li-ion cell will have a longer service life. 

The PCM will provide the following protection:

• Keep 7.4V Li-Ion Battery pack from overcharge (4.2V/cell)
• Balance each cell at Max. 4.22/cell (voltage tolerance within 0.2V for each cell)
• Keep 7.4V Li-Ion Battery pack from overdischarge (2.48V/cell)
• Limit 7.4V Li-Ion Battery pack's discharging current below 20A.
• Need other customized voltage of PCB/PCM with different size? Please click below to order
• Customized 2 Cells PCB for 7.4V Li-Ion / 6.4V LiFePO4
• Customized 3 Cells PCB for 11.1V Li-Ion / 9.6V LiFePO4
• Customized 4 Cells PCB/PCM for 14.8V Li-Ion / 12.8V LiFePO4
• Customized 5-8 Cells PCB/PCM for 18.5V-29.6V Li-Ion / 16V-25.6V LiFePO4
• Customized 8-16 Cells PCB/PCM for 29.6V-59.2V Li-Ion / 25.6V-51.2V LiFePO4
• Customized 16-26 Cells PCB/PCM for 59.2V-96.2V Li-Ion / 51.2V-83.2V LiFePO4

Features:  

• Manufacture part# PCM-L02S20-265
  
• Applicable for 2 Cells  Li-ion / Li-polymer Battery Pack with discharging current  < 20A
• Internally trim Voltage limits to balance each cell. Must wait 30 minutes after fully charge to allow the pack to perform balance function before using.
• Max. 20A Discharge Current Limit Detection and cut-off power
• Dimension (LxWxH): 4.7"(120mm) x 1.5" (37mm) x 0.3" (7mm)
• Weight: 50g (1.8oz)
  
• Excluded Fuel Gauge socket for connection to our Fuel Gauge display board to display battery energy level. 
  • In order display battery energy level from the PCB, you need to order a fuel gauge display here
    • Connect Red wire to P+ spot of PCB
    • Connect Black wire to P- spot of PCB
  •  Please download the specification (included wiring diagram) of  PCM 

Tip:

• If you want to use this pcm for a battery that is rated less than 20A drain, you must add additional protection device to protect the battery itself. Such as: proper rated polyswitch.

Warning:

• It is designed for high power polymer Li-Ion cell listed in our website only
• Please make sure the AWG gauge of the wire will be compatible with maximum current load. Please click here to view the AWG gauge & AWG electronic current load limit chart.
• To achieve balance, each cell in battery pack must have equal voltage within tolerance of 0.2V. After charger LED turn Green, unplug charger and wait 30 minutes before use. This is for the pack to perform balance function.
• You must be professional in Li-Ion battery pack to buy the PCM for DIY. Misusing PCM may cause battery damage or explode.  We are not responsible for any damage caused by user.

Batteryspace is not responsible for any damage cause by misunderstanding and misuse! Please read instruction carefully before assembling.