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4S12V20A/30A/40A/50A/60A Battery Management System

18650 4S 12V 15A 20A 30A 40A 50A 60A Waterproof BMS For Rechargeable Lifepo4 Battery With
Same Port for lithium battery

BMS, short for BATTERY MANAGEMENT SYSTEM, is the link between the BATTERY and the user. Its main object is a secondary battery, mainly
to improve the battery utilization rate, to prevent excessive battery charging and excessive discharge, which can be used in electric cars, battery
cars, robots, unmanned aerial vehicles.


4S 8S 12S BMS Battery Management System4S 8S 12S 16S 12V 24V 36V 48V BMS For Lithium Battery
◆EVL4S12V 15A/20A/30A/40A/50A/60A PCB is used for 4 series 12V lifepo4 battery pack. ◆We can design it for various lithium batteries like LiFepo4, LiMn2O4, lipo 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.

Parameters for li-ion 4S 12V BMS

Description

Specification

Unite

Remarks

20A

30A

40A

60A

Discharge

continue discharge current

20

30

40

60

A

Discharge Peak current

65

165

165

200

A

Over current protection

65

165

165

200

A

Charge

Charge voltage

17

V

Charge current

20

30

40

60

A

Charge current 8A in

Separate port

Over charge

protection

Over charge detect voltage

4.25±0.025

V

Over charge protection delay

0.5

S

Over charge release voltage

4.15±0.05

V

Balance

Balance detection voltage

4.18

V

Balance release voltage

4.18

V

Balance current

30

mA

Balance current30±5mA

Discharge

protection

Over discharge detect voltage

2.7±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

150

mV

Over current detect delay

9

MS

Over current protection release conditions

Off load

Short circuit

protection

Short circuit protection conditions

short circuit with extermal load

Short circuit detection delay

250

uS

Short circuit protection release conditions

Off load

Temp Protection

Temp Protection

NA

As Requirement

Inner resistance

Main circuit conductive inner resistance

≤10

Self electricity

consume

Working current

≤40

uA

Sleeping current(Battery in overdischarge)

≤20

uA

Working Temp

Temp range

-30to80



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