Master Battery UPOWER Ecoline UE-24Li25 User manual

Issued Date > 2016-06-12
Issued Version > V00
LITHIUM IRON PHOSPHATE BATTERY
NO. Items Description
25.6V
25Ah
≤40mΩ
Nominal Voltage
Normal Capacity
Internal Resistance
Recommended charge current
Recommended float charge voltage
(for Standby use)
Allowed MAX charge current
0~45°C
29.2±0.2V
25A @ Battery initial Temp 25±5°C
1
2
3
4
5
6
7
8
Normal Specification
Standard Charge
Battery operation temperature range
@charging
Normal charge voltage
27.6±0.2V
≤12A
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1. General Information
2. Specification
Polígono industrial La Dehesa
C/ Dehesa Vieja,nº2 Nave 16
28052 Madrid (Spain)
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Multi-application - LiFePO4 Power
UE-24Li25
This specification defines the performance of rechargeable LiFePO4 battery pack UE-24Li25 manufactured by
MASTER BATTERY, S.L., describes the type, performance, technical characteristics, warning and caution of the
battery pack.

NO. Items Description
-20~60°C
20~29.2V
25A withstand 10min @Battery initial Temp 25±5°C
85A withstand 3s
20V
Battery operation temperature range
@discharging
Output Voltage Range
Allowed discharge current
Peak discharge current
Discharge Cut-off voltage
Dimension
Weight
Storage Temperature
& Humidity Range
-20~35°C, 45~75% RH
9
10
11
12
13
14
15
16
Standard Discharge
Mechanical Characteristics
Storage
Self-discharge rate
17
Short: within one month
Long term:
above one month -10~30°C, 45~75% RH
≤3% per month; ≤15% per yearResidual capacity
≤1.5% per month; ≤8% per yearReversible capacity
Width: 165±2mm
Height: 175±2mm
Approx.: 6.5±0.5Kg
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Length: 196±2mm
Polígono industrial La Dehesa
C/ Dehesa Vieja,nº2 Nave 16
28052 Madrid (Spain)
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Fax. [phone]
[e-mail]
UE-24Li25

3. Electrical Characteristics & Test Condition
Testing Conditions: Ambient Temperature: 25±5ºC; Huminity: 45%~75%.
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NO. Items
Capacity2
3
4
-20°C
Condition
Internal Impedance1≤40mΩ Test the internal resistance of 50% SOC battery pack
with 1 kHz AC internal resistance test instrument.
Criterion
Rest for 1 hour after fully charged, then discharge
with 0.33C current until the battery reaches the
discharge cutoff voltage. Repeat above process for
three times, if the discharge time is not less than 180
minutes, you can stop and define the Discharging
current*time value (Ah) as battery capacity.
≥25Ah
Discharge
Temperature
Characteristics
At 25±5°C discharge the battery with the current of
0.33C to the cut-off voltage. Store the battery at
various temperatures for 2h and discharge the
battery with 0.33C to the cut-off voltage. Record the
ratio between discharging & charging capacity.
0°C
25°C
55°C
≥70%
≥80%
100%
≥95%
Charge the battery to full capacity and store it for 28
days, and then discharge it with 0.33C to the cut-off
voltage.
Charge Retention
ability
Remain capacity
≥90%
Short circuit protection / Release the charge after short circuit.
Charging with this current for more than 0.5h and the
added temperature of battery pack less than 20°C.
MAX charge Current 25A
5
Discharging with this current for more than 10 min
and the added temperature of battery pack less
than 35°C.
MAX discharge Current 25A
Discharge with the current of 0.5C until it can’t
discharge, and then rest it for 1h. Charge the battery
following CC (0.33C)/CV (14.6V) mode to full capacity,
and then rest it for 1h. Repeat above process until full
charged capacity is no more than 80% of normal
value. Accumulated times is defined as cycle life.
6Cycle life (DOD%100) ≥2500 cycles
7
8
Polígono industrial La Dehesa
C/ Dehesa Vieja,nº2 Nave 16
28052 Madrid (Spain)
Tel. [phone]
Fax. [phone]
[e-mail]
UE-24Li25

4. Circuit Protection
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 overcharge, over discharge,
short circuit. Overall, the BMS helps to ensure safe and accurate running.
Test Item
Over-charge protection for each cell
CriterionContent
3.90±0.04V
Over charge Over-charge release for each cell 3.60±0.04V
Over-charge release method Under the release voltage
Over-discharge protection for each cell 2.30±0.04V
Over discharge Over-discharge release for each cell 2.80±0.04V
Over-discharge release method 85~115A
Discharge over current protection 40ms~3s
Over current Protection delay time 10~40ms
Over current release method Delay recovery after 30s
Over & Lower
Temperature
Battery over temperature
Protection @65±5°C
Release @55±5°C
Battery lower temperature
Protection @-10±5°C
Release @-10±15°C
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MOS temperature protection Protection @103±10°C
Release @75±5°CMOS restore protection
Polígono industrial La Dehesa
C/ Dehesa Vieja,nº2 Nave 16
28052 Madrid (Spain)
Tel. [phone]
Fax. [phone]
[e-mail]
UE-24Li25

5. Dimensional Drawing
6. Storage & Transportation
• Based on the character of cell, proper environment for transportation of LiFePO4 battery pack need to be
created to protect the battery.
• Battery should be stayed in the warehouse -20ºC 〜35ºC where it’s dry, clean, shade and well-ventilated.
• The battery should be stored in 50% SOC during transportation.
• The battery need to be charged every 6 months if out of use.
• Keep the battery against dropping, turning over and serious stacking during loading.
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Polígono industrial La Dehesa
C/ Dehesa Vieja,nº2 Nave 16
28052 Madrid (Spain)
Tel. [phone]
Fax. [phone]
[e-mail]
UE-24Li25

Please read and follow the specification and caution remarks on battery surface before use the battery.
Improper use may cause heat, fire, rupture, damage or capacity deterioration of the battery.
MASTER BATTERY, S.L. Describes is not responsible for any accidents caused by the usage without following our
specification.
Warning!
• The battery must be far away from heat source, high voltage and avoid to be exposed in sunshine for long time.
• Never throw the battery into water.
• Never connect the positive and negative of battery with metal.
• Never sheep or store battery together with metal.
• Never reverse two electrodes when use the battery.
• Never disassemble the battery without manufacturer's permission and guidance.
• Never knock, throw or trample the battery.
Tips!
• Keep the battery against high temperature. Otherwise it will cause battery heat, get into fire or lose some
function and reduce the life.
• When battery run out of power, please charge your battery timely (≤15 day).
• Please use the matched or suggested charger for this battery.
• If battery emit peculiar smell, heating, distortion or appear any abnormity during working or storage, please stop
using and take it out from device.
• If the battery leaks and get into the eyes or skin, do not wipe, instead, rinse it with clean water and see doctor
immediately.
• Please far away from children or pets.
• Do not put disuse battery into a fire or water.
• If user needs to parallel several battery packs, please charge them to full capacity with same type of matched
charger, and set it aside for 8 hours, professionals only. This battery pack supports application no more than
20 group parallel. If user needs to apply this product to more groups parallel, please reconfirm details with us.
• It is strictly prohibited any series between the battery packs. Any requirements on serials connection, please
contact MASTER BATTERY for details.
7. Warning & Tips
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Polígono industrial La Dehesa
C/ Dehesa Vieja,nº2 Nave 16
28052 Madrid (Spain)
Tel. [phone]
Fax. [phone]
[e-mail]
UE-24Li25