HA12 48V Battery equalizer with Bluetooth


HA12 battery equalizer is for balancing 4*2-12V battery bank. Compatible with lead acid battery, lifepo4 battery, NiMH Battery, etc. It start work when there is 10mv voltage difference between batteries. 

  • Model: HA12
  • Battery: 4 x 2-12V battery 
  • Size: 131 * 66*23mm
  • IP67 Waterproof
  • Weight: 0.5kg
  • CE RoHS Certification



Main Features: 

  • For 4*(6V/9V/12V) Batteries
  • With Bluetooth
  • Users can check battery voltage date through mobile app
  • Battery protector,extend battery lifetime
  • Active energy transfer equalizer
  • Compatible with all batteries, No battery type limited
  • Fast balance speed and low consumption
  • No need of external power supply
  • Free maintenance;
  • Reverse polarity protection, safe and reliable. 
  • IP67, waterproof and moisture-proof;
  • Small size, easy installation.
  • CE, RoHS certification
  • Customization service

Working Principle



Technical Specification:

Model HA12
Battery Normal Voltage 4*(6V/9V/12V) or 4*(2-5)V
Battery cell voltage range 6V-18V
Balance current 0-10A(based on voltage difference)
Balance status keep on working in charging/discharging/free status when there is 10mv voltage difference
Dimensions 131*66*23 mm
Weight 0.5kg
Protection Reverse polarity protection
Low Voltage Disconnect 5V
Voltage display accuracy ±0.5%
Certification CE, RoHS
customization service   Yes


Bluetooth & App:

After the equalizer is conencted with the batteries. turn on bluetooth on Mobile. User can check the batteries' realtime voltage by the App. 




Please connect battery equalizer to batteries as the following order:

  1. Red cable connect positive/+ pole. Black cable connect negative/- pole
  2. Connect the batteries as the pictures   You can connect all + pole firstly,and then - pole to avoid short circuits.

Please Note:

  1. If there are extra cables, please leave the tubes of the terminals on it to avoid short circuits.        
  2. Please avoid any of the 8 terminals touching each other.



Shenzhen Huaxiao Technology Co., Ltd is the professional manufacture of equalizer with 12 years experience. All delivered products have passed the company's stringent professional performance testing, which can meet the needs of the customer market. Please contact us for more detailed information.