New Arrival Waterproof 29.2V Power Supply 10A 9A 8A Lifepo4 lithium Battery Charger For 24V Battery

New Arrival Waterproof 29.2V Power Supply 10A 9A 8A Lifepo4 lithium Battery Charger For 24V Battery
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 Product Description

Daly waterproof 8s 24v 29.6v 45A BMS lithium lipo lifepo4 bms for electric scooter use for lithium battery

Model: DL8S (3.2V Rated LiFePO4 not for 3.7V rated Li-ION Battery)

common Version : common port for charge/discharge 
separate Version : separate port for charge/discharge

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


1. Overview

DL8S24V45A PCB is used for 8 series 24V 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.

According to the customer request we can develop PCM in different sizes and structures.

BMS manufactured by  high quality Mos and IC imported . Keep your battery long cycle serivce life time.


2. Advantage

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

◆Strong load ability, constant discharge current 45A, 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

Product Display




Parameters for Life Po4 8S BMS
  Discription Specification Unite Remark
18A 25A 35A 45A 60A
Discharge Contine discharge current 18 25 35 45 60 A  
Discharge Peak current 50 100 130 160 180 A  
Over current protection 50 100 130 160 180 A  
Charge Charge Voltage 28.8 V  
Charge current 18 25 35 45 60 A Charge in separate port set as required
Over charge protection Over charge detect voltage 3.65±0.025 V  
Over charge protection delay 0.5 S  
Over charge release voltage 3.6±0.05 V  
Balance Balance detect voltage NA V Balance voltage3.6V
Balance release voltage NA V Balance voltage3.6V
Balance current NA mA Balance current35±5mA
Over discharge protection Over discharge detect voltage 2.5±0.05 V  
Over discharge detect delay 0.5 S  
Over discharge release voltage 3.0±0.05 V  
Over current protection Over current detect voltage 200 mV  
Over current detect delay 9 MS  
Over current protection release condition Off load    
Short circuit protetion Short circuit protection condition Short circuit of external load    
Short circuit detect delay 250 uS  
Short circuit protection release condition 断开负开    
Temp Protection Temp Protection NA Set as required
Inner resistance Conductive resistance in main circuit 10 
Electricity self consume Working current 40uA  
Sleeping current(battery in discharge) 20uA  
Work Temp Temp range -40  


Packing List


1.BMS 2.Antistatic Bag 3.Wiring Cable 4.Wiring diagram 5.Packing Box


Wiring diagram_09

Application Area_08

Applied to electric tools, electric scooters, motorcycles, electric motorcycles, electric tricycles, electric vehicles and so on.

About us

Dongguan Daly Electroniccs Co.,Ltd,Started in year of 2013.Our factory is in Guangdong Dongguan Changping.It is a high-tech company specializing in R&D, production and sales of lithium battery protection board (BMS).The company has an internationally standardized quality management system.We exported our products over 80 countries in the world with good reputation.

One-stop solution, Lithium / LiFePo4 battery packs, accept customized, OEM sevices,Any questions please contact us!
We will respond within 1 business day or less.
Tel/Wechat:86 16620692767
1.What is the common port and separate port? what is the difference?
We take 13S48V16A BMS as an example, common port 16A means your charge cathode and discharge cathode are connected in the same point end(our P-), charge cathode and discharge cathode are used in the common connection 
port, so the charge current and discharge current are the same 16A. while the separate port is separately connected by charge cathode (C-) and discharge cathode (P-),  so the charge current and discharge current are different, discharge current 16A, charge current 8A.
2.What is the balance function?
The working principle and function are as followings, when your one cell voltage is upto alarm voltage(Li-ion upto 4.18V, Life Po4 upto (3.6V), then the cell Balance starts to work, balance resistance starts discharge with 35ma(when balance discharge starts to work, BMS will starts a little heat up, which is the normal reflection), the cell is in both charging and discharging status, and others which are not reached to alarm voltage(Li-ion 4.18V, Life Po43.6V)are only in charging status, no discharging, when the fast cell voltage is reached to alarm voltage(Li-ion 4.25V, Life Po43.75V)BMS starts off power protection, all the other cells 
are all in stop of charging, this process will enable your battery charging in balance current, and your battery voltage are in balance status, but when your cell voltage difference are in a big range, then balance can not be functionning.
3.The relationship between Battery capacity and BMS current?
There is no direct relationship between  Battery capacity and BMS current, big capacity doesn`t mean a big battery, but rely on continue current, that is to say if your engine is powerful, your should choose high current of BMS, it is not relied on battery capacity.
4. What type of charger should  I choose?
Lithium battery must choose specific charger, do not use Charger for Leadacid battery, for leadacid charger may have MOS with high pressure breakdown protection, which will not protect of BMS over charge.Life Po4 battery charger voltage=battery string No.X3.6V, while Li-ion battery charger voltage=Battery string No.X4.2V.
5. What current BMS should I choose ?
Take 10S36V as an example: what current BMS you choose is relied on your E-bicycle Motor power and current limitation of controller. eg., choose 16A for below 350W, 25A for below500W, 35A for below 800W, 60A for Below 1000W, higher than 1200W are contact with our service specialist for suggestions, one inall, continue current shall be higher than current limitation in Controller.
6. Whether my BMS damaged?
if you want to judge if the BMS is damaged, please take the folowing steps, to test if each cell voltage is the same with voltmeter? if the cell voltage difference is over 1.0V, the fault is displayed that it cannot run far, no power supply at the 
start range, short charge time, all these issues are almost caused by battery cells, if BMS damaged is displyed as no charge, no discharge, no discharge while the battery has voltage.