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

HA11 battery equalizer is for balancing 2*12V battery bank. Compatible with lead acid battery, lifepo4 battery, NiMH Battery, etc. It start work when there is 20mv voltage difference between batteries. 

• Model: HA11
• Battery: 2*12V battery 
• With Bluetooth
• Size: 70*70*27mm
• Weight: 0.25KG
• CE RoHS Certification