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Battery Pack Separate Port
4S25A35A45A60A 12V PCM/PCB/BMS for 3.2V lithium battery pack LiFePO4
4S25A35A45A60A 12V PCM/PCB/BMS for 3.2V lithium battery pack LiFePO4
4S25A35A45A60A 12V PCM/PCB/BMS for 3.2V lithium battery pack LiFePO4
4S25A35A45A60A 12V PCM/PCB/BMS for 3.2V lithium battery pack LiFePO4
4S25A35A45A60A 12V PCM/PCB/BMS for 3.2V lithium battery pack LiFePO4
4S25A35A45A60A 12V PCM/PCB/BMS for 3.2V lithium battery pack LiFePO4
4S25A35A45A60A 12V PCM/PCB/BMS for 3.2V lithium battery pack LiFePO4
4S25A35A45A60A 12V PCM/PCB/BMS for 3.2V lithium battery pack LiFePO4
4S25A35A45A60A 12V PCM/PCB/BMS for 3.2V lithium battery pack LiFePO4
4S25A35A45A60A 12V PCM/PCB/BMS for 3.2V lithium battery pack LiFePO4
4S25A35A45A60A 12V PCM/PCB/BMS for 3.2V lithium battery pack LiFePO4
4S25A35A45A60A 12V PCM/PCB/BMS for 3.2V lithium battery pack LiFePO4

4S25A35A45A60A 12V PCM/PCB/BMS for 3.2V lithium battery pack LiFePO4

Regular price $23.99 Sale price $70.99 Unit price per
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Product Description :

4S25A35A45A60A 12V PCM/PCB/BMS for 3.2V lithium battery pack LiFePO4 Battery Pack Separate Port

1. Overview

DG4S25-60A PCB is used for 4 series 12V battery pack.

We can design it for various lithium batteries like LiFepo4, LiMn2O4, and Li-polymer etc.

The main functions are: over charge protection, over discharge protection, over current protection, short-circuit protection, temperature protection etc.

 

2. Advantage

◆Use top quality (A-level) protective integrated circuit IC, from the solution of Seiko of Japan.

 

◆Strong load ability, constant discharge current 25-60A, use high voltage resistance, low inner

resistance power Mosfet. The heat sink will greatly help cooling.

 

◆IC itself has power balancing function. The circuit is simple and reliable.

 

◆Typical voltage detection for each cell. So each battery will be prevented over charged or over discharged. Over current and short circuit protection

function is very reliable.Long time short circuit of the load won’t affect the PCB and the battery.Temperature protection during charging and discharging.

 

◆Extreme low power consumption. The consumption of the whole device is less than 50uA.

 

◆PCB use high anti-corrosion, high water resistance, high impedance ESD conformal Coating

 

3.Technical parameter

(The following is an example for 3.2V rated lithium ion battery.

If your battery is 3.7V rated battery, we will set the parameters for it,please leave message to us. )

 

Model: DG4S25-60A (3.2V Rated LiFePO4 not for 3.7V rated Li-ion battery) with separate port.

Charge wire and discharge wire are separate.

We can customize any PCB from 1S to 30S lithium batteries with different current.

 

 
  Content Spec Unit Remark
18A 25A 35A 45A 60A    
Discharge constant discharge current 18 25 35 45 60 A  
peak discharge current 50 100 130 160 180 A  
Over current protection 50 100 130 160 180 A  
charge charge voltage 14.4 V  
charge current 8 A  
Over charge protection over charge volt 3.65±0.025 V  
over charge volt protect delay 0.5 S  
Over charge volt release 3.6±0.05 V  
Power balancing Power balance volt 3.6 V  
balance release volt 3.6 V  
balance current 35±5 mA  
Over discharge protection Over discharge detect  volt 2.5±0.05 V  
Over discharge detect delay 0.5 S  
Over discharge volt release 3.0±0.05 V  
Over  current protection Over current detect volt 200 mV  
Over current detect delay 9 MS  
Over current protect release Disconnect load    
Short circuit protection Short circuit protection External load short circuit    
Short circuit detect delay 250 uS  
Short circuit detect release Disconnect load    
Temperature protection Temp protection none Can be customized
resistance Main circuit resistor ≤10  
Self-consumption Working current ≤40 uA  
Sleepy current(when battery is over discharged ) ≤20 uA  
Working temp temp range -30~80  
 
 
Product Photo

 

Deligreen 4S  25-60A 12V PCM/PCB/BMS for Lithium Battery LiFePO4 battery

Size:

25A: 46*75*11MM

35A: 46*75*11MM

45A: 46*75*11MM

60A: 65*80*12MM

1. Detailed information                                               

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2. Product Structure

 

3. Wiring instruction

 

4. Packing list

5. Factory overview

FACTORY

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FAQ

 

1  Which current of the PCB should i choose?

Take 13S 48V pack as an example: Which PCB you should choose depends on the power of your motor or the current limitation of your controller. Below 350W, you can choose 16A. Below 500W, you can choose 18A, Below 800W, you can choose 35A,Below 1KW, you can choose 60A. Above 1200W, the same. If you are not sure, please contact us freely.

 

2  Can i use bigger size of PCB than it should?

Suppose you need 60A PCB but you chose 80A, that is OK.80A allows higher current.Nothing bad but a bit higher price.But if you choose 50A, sorry it is too small. So you can choose higher spec but can’t choose lower one than it should have been.

 

3  What kind of charger should i choose?

Lithium battery must be charged by lithium battery charger. You can’t charge it with a lead acid battery charger. The lead acid battery charger might damage MOS pipe of the PCB.

 

4  If i have PCB, do i need any balancers?

Yes if you can add QNBBM balancers, that would be perfect.The Main function of PCB is to prevent batteries from over charged or over discharged,over heated etc.All the PCB /BMS in the world balance performance is not satisfactory. With balancers added, the batteries lifespan will be longer and the capacity will be fully used.

 

5  How to judge if my PCB is broken or not ?

If you’d like to judge if the PCB is fine or not, please use a multi-meter and see if the voltage of each cell is close to each other or not.when the volt difference is 1V, the battery will have such performance:driving distance is short, cut off when started, charging time is very short.under such situation , some battery is defective. When the PCB is broken, the battery can’t be discharged when you measured the battery volt is normal. 

Accessory Type: Battery Accessories
Brand Name: QNBBM
Model Number: DG4S25A
Application: 3.2V rated lithium battery
Battery series: 4S
Over charge protection: Yes
Over discharge voltage: Yes
Short circuit protection: Yes
Charge port and discharge port: Separate port
Constant discharge current: 25A
Constant peak discharge current : 100A
Temperature protection: Can be customized


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