LED Balance Module for 3.2V LFP Cell with 250mA Balance Current for LFP-G20 (#6450)

A smart balance module used in a battery pack for individual LiFePO4 Prismatic Module: 3.2V 20 Ah, 10C Rate (64 wh)cell to improve battery pack's cycle life!

Working principal:  

Each 3.2V LFP cell has a small difference in internal resistivity ( so called impedance ) due to fabrication tolerance. Especially for cell's capacity 20Ah and in application require very high discharge current ( >40A ) which will cause unbalanced voltage in each cell during charging. When building a multi-cells battery pack (in series or in parallel), unbalanced voltage will reduce battery pack‘s energy power and life cycle significantly.

The balance module will keep each LFP cell’s voltage at 3.60V peak during charging by draining excessive voltage with a 250mA discharge current. It will wait for other cells within the pack to reach same voltage level to ensure all cells within the pack are balanced.

Adding the balance module to each LFP cell before making a battery pack will maintain battery power, increase cycle life and save money. Using this balance module means you don't need a pcm ( protection board with balance function) but can use a pcb (no balance function) instead.

Please click here to download operation manual

Specifications:

No.	Test   item		Criterion
1	Voltage	Balance voltage	3.60V±0.25V
2	Current	Balance current	250mA±10mA
		Current consumption	≤2.5mA
3	Temperature	Operating Temperature Range	-40～+125 oC
		Continuous balance resistance temperature	≤100oC
4	Dimension	LxWxH	55mm(2.2") x 15mm(0.6") x 6.0mm(0.2")
5	Weight		0.1 grams (0.003oz)

    Note: 

• This balancing board won't perform over-discharge protection function. You must not discharge the battery pack below 2.5V/cell.
  • If over discharge below 2.5V/cell, please recharge the pack right away. Otherwise over-discharged battery pack can not  recover!