This link is the price for 4S balance module.

Suppose you have a 16 series pack, you need to order 4pcs of 4S modules.

Total amount ≥200USD,we offer free shipping fee by express.

Do you have an electric  bicycle, scooter,car,truck?

Do you have an Energy storage system/solar/wind product ?

Are you doing electric conversion kit?

Do you have a lithium battery pack?

Are you worried about the batteries lifespan?

Are you complainting the "smart" but "useless" BMS?

Are you looking for an effective and economical BMS?

Congratulations!You've come to the right place!

3S to 8S lithium battery balancer equalizer BMS for 3.2V 3.7V  

LIFEPO4,polymer battery 12V24V36V48V72V144V192V288V etc.

Keep your batteries voltage difference within 10MV!

Prolong the lifespan of your batteries 2~3 times!

whatever what brand , whatever what type of battery you use,we have a    

solution for you!