Alpha Outback Energy AOESS48V-LFP4100 User manual

AOESS48V-LFP4
Lithium battery

Datasheet: revA_4821
Page 2of 7
1. General Information
This specification defines the performance of rechargeable LiFePO4 battery pack AOESS48V-LFP4100,
it describes the type, performance, technical characteristics, warning, and caution of the battery pack.
1.1 Background
The lithium- ion battery AOESS48V-LFP4100 adopts advanced LiFePO4 technology so the battery
module has multiple advantages of long cycle life, compact structure, light weight, stable performance,
which is widely used in the various environment. The system is integrated withsmart battery
management system and monitor module to meet the unattended requirements, which is very suitable
for the field of backup power supply, such as PV energy storage, Micro base station, UPS, etc.
1.2 Product features
Adopt high performance LFP cells with long lifespan, high safety and wide temperature range.
With high energy density, compact structure, light weight, and no pollution.
Built-in BMS with battery voltage, current, temperature and battery health management.
With LED display for SOC and operating status, which is easy to read battery status.
With Communication interface, RS485 and CAN by default.
Use smart balancing module to ensure the consistency of battery and to extend the service life.
With long lifespan of floating charge, stable performance and maintenance-free.
With ultra-low consumption of BMS, self-discharge rate and capacity loss rate.
Equipped with BMS secondary protection function and ultra-high system reliability
Figure 1.

Datasheet: revA_4821
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2. Battery Specification（@ 25±5℃）
NO
Items
Characteristics
2.1
Normal capacity
100Ah
2.2
Nominal energy
5.12 KWh
2.3
Nominal voltage
51.2 V
2.4
Internal resistance
≤50mΩ @1khzAC
2.5
Normal charge voltage
56.0~57.6V, default: 56.0V
2.6
Float charge voltage
54.4~55.2V, default: 54.6V
2.7
Allowed MAX charge current 1
50A
2.8
Recommend charge current
≤10A
2.9
Allowed MAX discharge current 2
100A @≤35℃
2.10
Terminal
Amphenol
2.11
Charging method
Phase 1: CC-CV
Phase 2: Float/ Regular bulk charge
2.12
End of discharge voltage
50.0V Low Voltage
48.0VBLVD
51.2V Restart
2.13
IP rating
IP2X
2.14
Communication and Display
RS485/CAN Bus
2.15
Dimension
W 442.0±2 mm
H 177.5±2 mm
D 450.0±2 mm
2.16
Weight ( without accessories )
~47kg
2.17
Operation temperature4
Charge
0~45℃
0~10℃: ≤0.1C (Force)
10~20℃: ≤0.3C (Recommended)
20~35℃: ≤0.5C (Recommended)
35~45℃: ≤0.2C (Recommended)
Discharge
-10～55℃
2.18
Self-discharge rate
Residual capacity
≤3%/Month; ≤15%/ year
Recover capacity
≤1.5%/Month; ≤8%/ year

Datasheet: revA_4821
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NO
Items
Characteristics
2.19
Storage environment
(Power off status)
≤6 months
0℃< T < 30℃
≤3 months
-10℃< T < 45℃
Recommended
environment
15~35℃、5~75%RH
2.20
Cycle life
Performance life
10 years+
Design life
12 years+
Note: 1 is based on the initial environment temp. 25±5℃.
2 is based on the initial environment temp. 25±5℃.
3 the batteries require a full charge per month, we suggest you to charge the batteries to correct SOC.
4 Battery pack will stop work to protect itself when the temperature is out of the operation range. The
optimum operating temperature range is from 15°C to 35°C, Frequent exposure to the harsh
temperatures may worsen the performance of the battery pack and cycle life.
3. Electrical Characteristics & Test Condition
Testing Conditions: Ambient Temperature: 25±5℃, Humidity: 45%~75%.
Normal charge: Charge battery under CC (0.2C)/CV (56.0V) mode until over charge protection or
reduce the charge current to 0.05C, and then rest for 1h.
NO
Items
Nominal
Condition
3.1
Normal
Capacity
100Ah
After Normal charge, discharge @0.33C current to theend
of discharge voltage.
3.2
Internal
Impedance
≤50mΩ
@50% SOC @1kHz AC internal resistance test instrument
3.3
Short circuit
protection
Auto cut off load
when short circuit
Connect the positive and negative of this battery pack
through a lead with 0.1Ω resistance.
3.4
Cycle life
≥4000 cycles
After Normal charge, discharge @0.2C current with
80%DOD, Repeat above process until discharge capacity
reduce to 80% of initial value.
3.5
Discharge
temperature
characteristic
@0.2C
20℃(6h)
≥60%
Capacity @specified temperature percentage
Capacity @ 25℃according to nominal
0℃(6h)
≥80%
25℃(4h)
≥100%
55℃(4h)
≥95%
3.6
Capacity
retentionrate
remaining capacity
≥96%
After normal charge, store the battery @25±5℃for 28days
then discharge capacity @0.2C, the retention capacity
according to Nominal.

Datasheet: revA_4821
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4. Electrical parameters
The batteries are supplied with a LiFePO4 Battery Management System (BMS) that can monitor and
optimized each single prismatic cell during charge & discharge, to protect the battery pack from
overcharge, over discharge, short circuit. Overall, the BMS helps to ensure safe and accurate running.
No
Item
Content
Criterion
4.1
Over charge
Over-charge protectionAlarm
57.6V
Over-charge protection
58.4V
Over-charge protection delay time
1.0S
Over-charge release
56.0V
Over-charge release method
Discharge
4.2
Over
discharge
Over-discharge protection alarm
43.2V
Over-discharge protection
40.0V
Over-discharge protection delaytime
1.0S
Over-discharge release
46.4V
Over-discharge release method
Charge recovering
4.3
Over current
Charge over current protection alarm
110A
Charge over current protection
120A
Charge over current protection delay time
1.0S
Charge over current release method
about 60s later
Charge limitation current
N/A
Discharge over current protection alarm
110A
Discharge over current protection1
120A
Discharge over current protection delaytime1
15.0S
Discharge over current release1
Recover in 60s after charging or
removing the load
Discharge over current protection²
≥150A
4.3
Over current
Discharge over current protection delaytime²
500ms
Discharge over current release²
Recover in 60s after charging or
removing the load
Short circuit protection
Available
Short circuit protection release
Available
4.4
Temperature
Charge over temperature protection
Protect@60 ℃; Release@50 ℃;
Charge under temperature protection
Protect@-5 ℃; Release@5 ℃
Discharge over temperature protection
Protect@65 ℃; Release@55 ℃;
Discharge under temperature protection
Protect@-20 ℃; Release@-10 ℃;

Datasheet: revA_4821
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5. Batteryquick guide
a. Dimensions
Figure 2.
b. Transport & Storage
The battery need to be charged every 6 months if out of use.
No fall down, no pile up over 6 layers, and keep face up.
c. Warning & Tips.
Please read and follow the handling instructions before use. Improper use may cause heat, fire,
rupture, and damage or capacity deterioration of the battery:
Warnings
Battery must be far away from heat source, high voltage, and no exposed in sunshine for long
time;
Never throw the battery into water or fire;
Never reverse two electrodes when use the battery;
Never connect the positive and negative of battery with metal;
Never knock, throw or trample the battery;
Never disassemble the battery without manufacturer's permission and guidance.
Never use mixed with other type of battery;
The battery pack will stop working when the ambient temperature exceeds the operating range, so the recommended working
temperature range is 15
℃
to 35
℃
. Frequently used in the severe environment will deteriorate its performance and cycle life.
Attention

Datasheet: revA_4821
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Tips
Keep the battery against high temperature. Otherwise it will cause battery heat, get into fire
or losesome function and reduce the life.
When battery run out of power, please charge your battery timely (≤2day).
Please use the matched or suggested charger for this battery.
If battery emit peculiar smell, heating, distortion or appear any abnormity, please stop using.
If the battery leaks and get into the eyes or skin, do not wipe, instead, rinse it with clean water
andsee doctor immediately.
Please far away from children or pets.
It is strictly prohibited any series between the battery packs.
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