JK BMS JK-B1A8S10P JKBMS 100A 1A Active Balance 18650 Lifepo4 Battery JIKONG 4S 12V 5S 6S 7S 8S 24V Li-ion RS485 Camping Ebike

product advantages：

◆Active balance, good durability, long life, good balance and stable performance

◆Real-time active energy transfer equalization with supercapacitor as the medium (patent number: ZL 2019 2 0479589.6)

◆Single voltage range 1V~5V, equalization accuracy ±5mV

◆It can achieve 2-10A continuous balanced current, ensure battery consistency, improve battery cruising range, and delay battery aging.

◆Mobile phone Bluetooth communication, equipped with mobile APP, real-time view of battery status, support Android and IOS operating systems.

◆Support balanced cascading, suitable for more than 24 battery packs.

◆Suitable for lithium iron phosphate, ternary lithium, lithium titanate and other battery types.

Package

1 * BMS(Bluetooth bulit-in)

1 * Temperature sensor(40cm)

1 * Balance Wires(75cm)

1 * Active Switch(15cm)

4 * Cables

4 * Screws

1 * Heating cable (Only for BMS With Heat Function)

H: BMS With Heat Function

C: BMS With CANBUS chip Bulit-in

NOTE:

Due to the different voltage ranges supported.

Therefore, among the accessories of B1A8S20P/B2A8S20P,RS485, LCD and other BMS are not common.

Power Board is the same version.

Please choose to buy them carefully. Thank you

For instructions on heating cables,the green 5PIN cable of the heating cable needs to be linked to the heating pad,and the rest of the black and red cables are linked to the smart charger(after the smart charger links the BMS,it detects the temperature of the battery through the BMS,which automatically monitors the charging status of the battery)

Description of heating function:

Battery temperature is below low temperature charge protection, turn off charging, turn on heating.

Cryogenic charge protection is a parameter that can be set within APP

The heating power depends on the battery voltage and the resistance value of the heating film.

1 Internal/2 External Temperature Sensors (Detect battery temperature)

LCD and RS485 interfaces are configured by default

Bluetooth link for Phone-JIKONG BMS

Download link-IOS : Search (JIKONG BMS) in the APP STORE

Download link-Andriod : //www.pgyer.com/Cfq3

If you need to use BMS in parallel,

Fast Class T Fuse must be added to each battery pack.

Or discharge diode (high power diode selected according to load)

Provide a diagram

NOTE:

①:Temperature sensor

②:RS485 interface(At present, all JK BMS are configured with RS485 function by default)

③:LCD interface(At present, all JK BMS are configured with LCD interface by default)(Except of JK-BD4A17S4P)

④:Heat Function interface(At present, the heating function customized by customers can be accepted)

⑤:CANBUS interface ( Needs customized)

BMS Selection FAQ

1,What is the same port, what is the separate port

For example, 20S of 64V100A protection board, the same port means that your negative charge and negative discharge is connected to the same point of the protection board (P-), charge and discharge negative share a common interface, so his charge current and discharge current are the same as 100A. while the split port, it is just the opposite, the negative charge (C-) and the negative discharge is separated from the negative (P-), connected to a different point on the protection board So the charging and discharging current will be different, discharging 100A, charging 100A.

2,The relationship between battery capacity and BMS current

The size of the battery capacity and the size of the current with the BMS does not have a direct relationship, large capacity is not a large battery, mainly to see the continuous current, that is to say, the larger the current limitation of your controller, the larger the selected BMS continuous current should be, with your battery capacity does not have a direct relationship.

3,What kind of charger should I choose?

Carp batteries must be charged with a special charger for carp batteries, do not use a lead-acid battery charger, charging with a lead-acid charger may be high-voltage breakdown of the protection board MOS tubes, resulting in overcharging of the BMS is not protected. The voltage of the charger for ferrous batteries = 3.65V; charger for ternary batteries = 4.25V * number of battery strings.

4,How much current should I choose for the BMS?

The current of the BMS depends on the current limit of the controller, and the current limit of the controller depends on the power size of the motor, for example, if the motor is 64V, 1000W, then the current is 1000/64=15.6A. At this time, the current limit of the controller must be greater than 15.6A, and the current limit of the BMS must be greater than the current limit of the controller. The actual selection process must leave a margin.

BMS common faults and troubleshooting methods

No power on

1, to ensure that the last “B +” line has been connected to the battery total positive pole.

2、Charge activation, make sure the charger voltage is more than 4V above the battery pack voltage to activate.

3、Check whether the charger has voltage output.

voltage inaccuracy

Measure the actual total voltage of the battery pack with a multimeter, and fill in the actual total voltage into the “Voltage Calibration” in the parameter setting page.

The current is not allowed

1, BMS B- and P- are two 7AWG wires, both need to be connected in parallel, otherwise it will lead to current error.

2、Use a clamp meter to measure the actual current of the battery pack, fill in the actual current into the parameter setting page “current calibration” inside; the larger the actual current, the higher the calibration accuracy.

Capacity is not allowed
The first step, first set the battery capacity, the battery was how much, set how much capacity can be set slightly larger, for example, the battery capacity of 100AH, can be set to 120AH or 150AH. the second step, through the electric instrument to the battery discharge, the battery discharge, put the protection board prompts the single undervoltage protection. The third step is to charge the battery, don’t interrupt when charging, and keep charging until the BMS prompts the single-unit over-voltage protection.

After doing the above steps, the capacity will be automatically updated, APP battery capacity shown is the actual capacity of the battery, this time the SOC is also accurate, all the capacity-related are accurate.

The number of designed strings does not match the actual number of strings

1, check the parameter settings inside the “number of single unit” is set correctly.

2. If there is no voltage in the middle of a 2S or more strings, check whether the collection line is off.