16S 40A Lifepo4 48V Battery Management System BMS

Product: Deligreencs Lithium Battery Management 16S40A Lifepo4 BMS 48V Lithium Battery Charge Current 20A With Over Current Protection

(For 3.2V rated LiFePO4 battery pack only)

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Basic Specification of the bms

Wire speficication

BMS wiring directions

First, Preparation before installation.

Make sure the batteries are of good consistency.The volt difference is no more than 0.05V,inner resistance is no more than 5mΩ,capacity difference lower than 30mAh. Connect the batteries in parallel first and then in series.the better performance of batteries consistency is, the higher performance of the BMS.

Second, wiring instructions.

Attention: please use our wires for our BMS.Don’t use other factories’ wires which can’t match with our BMS.

Step 1 B-(blue thick wire): Connect to battery pack total negative pole -

Step 2, Disconnect the wires for batteries from the BMS side.

Step 3,Connect the wires to batteries. Start from the thick black wire to total negative pole(B1-),then connect the 2^nd red thin wire to the 1^st battery positive pole(B1+)

B2+,B3+B4+......till the last red thick wire.

Step 4,Finishing all the wires to each batteries,don’t plug into the BMS directly. We suggest you use multimeter measure the voltage of two adjacent metal terminals(You can see the white connector with silver metal pins on the BMS).if the voltage is 3.0~4.2V(LiNCM),2.0~3.6V(LiFepo4), 1.5~2.75V(LTO),which means the wiring is correct.

Step 5,Ensure the wires are connected to batteries correctly, all voltage is normal, you can plug the wires into the BMS.

Step 6 P-: Connect P-(black thick wire) to load - and charger -

(if you ordered “common port”)

Charger+ connect to C-(yellow wire) load+ connect to P-(Black thick wire)

(if you ordered “separate port”)

Step 7 charger+ and load+ connect to battery +,please use thick wire

Third, Measure the total volt of the pack, and the output voltage of the BMS.if the voltage is the same,it means the wiring is correct.You can use the BMS now. Otherwise please check the wiring again according to the tips above.

How to test if the bms is good or not?

1. Make sure to use the attached detective wires of our bms.

Ensure volt-detect red wires are connected correctly.

2. Connect the wire to the battery pack,measure the voltage through the wire,it should be equal with the voltage of each cell.

If the votage is different,it means wrong wiring.

3. Make sure the voltage is same,plug the bms in.Make the multimeter point to Ω, measure the resistance between P- and B-. If the resistance is 0, then the BMS is good.

Application

Since 2010, we've been one of the largest wholesalers of rechargeable batteries.

We solely focus on high - quality, grade A, brand - new batteries.

Our range includes LiFePO4, LTO, Sodium, solid - state batteries, and other trending ones.

Both cylindrical and prismatic cells are available, with capacities from 1300mAh to 320Ah.

These batteries are mainly for EVs and residential energy storage.

We have warehouses in Poland, the USA, and China.

This enables customers to select high - quality products and avoid poor - quality batteries.

It also allows us to deliver products quickly.

Moreover, we have a battery pack factory that supports design, OEM, and customization like 12V, 24V, 48V, etc.

We are an honest team.

Trust our 14 - year experience to help you achieve great success.

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