Serial Number:12V400Ah
Add:Chengdu Pidu District Industrial Port North Road No. 276
Supply:Chengdu Yu Neng Tong Energy Development Company

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Hotline:+86-028-6212 7628

product name:Lithium iron phosphate battery pack

product description:The battery system is the use of high-quality lithium iron phosphate batteries,Installation of hardware and software dual safe and efficient protection measures,From the inside to the outside work fine, reasonable structure.The battery system can effectively charge and discharge the battery pack for real-time monitoring and protection,The protection temperature for charging and discharging is set independently,To prevent any battery in the battery pack overcharge, over discharge caused by damage,And can control the battery charge, discharge current,Ensure that the battery pack and load are not damaged;To ensure that in the event of a short circuit failure when the output off and automatic balance of the application of the battery pack at any time in the best condition.

Product parameters:

model:12V 400Ah

nominal voltage(V):12.8

nominal capacity(Ah):400

Output current(A):120以内

Output voltage range(V):10.0-14.4

Standard Charging voltage(V):14.4±0.2

Standard charge current(A):80±5

Overcharge protection(V):Any string of voltage higher than3.65±0.05

Over-discharge protection(V):Any string of voltage below2.50±0.05

Discharge over current protection(A)The first level: 120A for 5 seconds; the second level: 200A for 1 second

Discharge ambient temperature(℃):-20—65

Charging ambient temperature℃):-2—50

Storage ambient temperature(℃):5—45

Humidity range:≤50%

Output plug type interface definition:Output positive and negative lead ends with 200A round terminals

Communication Interface:yes

Maintenance interface:yes

LCD display:yes




Type of packaging material:Sheet metal shell


Wire exposed length(mm):600

others:The battery volume shown in the new battery pack is random,Need to go through at least one complete charge and discharge cycle after the accurate(Charging: Charge to battery pack for automatic protection,Discharge: Discharge to battery pack for automatic protection)。

Protection board performance indicators

Overcharge protection Overcharge detection voltage:3.65±0.05V

Overcharge detection delay time;1000±300mS

Overcharge recovery voltage:3.40±0.05V

Over-discharge protection Over discharge detection voltage:2.50±0.05V

Over discharge detection delay time:1000±300ms

Over discharge recovery voltage:3.0±0.05V

Over current protection charge Over current protection current:120A

Charge over current detection delay time:2000ms

Discharge over current protection current:150/200A

Discharge over current detection delay time:5000/1000

Short circuit protection Protection conditions:Discharge short circuit

Detection delay time:150-500us

Protection release condition:Disconnect the short circuit

Temperature protection Charge high temperature protection:55℃

Charge high temperature protection restore:50℃

Charging low temperature protection:-2℃

Charging low temperature protection restore:2℃

Discharge high temperature protection:65℃

Discharge high temperature protection restore:55℃

Discharge low temperature protection:-25℃

Discharge low temperature protection restore:-20℃

Internal resistance Main circuit on - state resistance V=3.65V;R≤5mΩ

Balanced mode Charging; static

Start voltage 3200mV

Start differential pressure 20mV

Balanced current 30mA

communication UART defaultRS485


Current consumption

Working state 20mA

Dormant state 100uA

Deep sleep state 10uA

Battery pack maintenance rules

a) Battery pack at the factory charge of 30% -80%

b) Each time the battery pack is used for one month, the following checks should be made. If the fault is found, it should be excluded immediately.Found that the fault should be immediately excluded。

(1)All kinds of fasteners bolts, nuts are loose.

(2)Whether a variety of harness with no abrasions, with or without metal wire exposed。

c) When the battery pack is not used for a long time, the battery pack is fully charged and the output circuit breaker is turned off.And then turn off the output circuit breaker.It is recommended to make a charge every March or so.