Fullwat LIR18650R-25 User manual

LIR18650R-25 • Li-ion cylindrical rechargeable battery

LIR18650R-25 •Li-ion cylindrical rechargeable battery
1. Scope
This product specication has been prepared to specify the Cylindrical Lithium-ion Cell.
2. Celldimensions(g.1)
3. Cellspecication
NO. Item Parameter
3.1 Normal capacity [email protected]
3.2 Minimum capacity [email protected]
(Discharge the cell from 4.2V to 2.50V by 0.2C current)
3.3 Internal resistance ≤18mΩ(ACIR)
3.4 Normal voltage 3.7V
3.5 Charging voltage 4.2 ±0.05 V
3.6 Discharge ending voltage 2.50±0.05 V
3.7 Standard charging current 0.5C
3.8 Standard charge cut-off current 0.02C
3.9 Standard discharge current 20A
3.10 Max charge current (continuous)
2.5A (45ºC>T≥20ºC)
1.25A (20ºC>T≥10ºC)
0.5A(10ºC>T≥0ºC)
3.11 Max discharge current (continuous)
20A (60ºC>T≥20ºC)
15A (20ºC>T≥0ºC)
10A (0ºC>T≥-10ºC)
3.12 Max pulse discharge current (<1s) 30A (25±3ºC)
3.13 Cell dimension
Height: ≤65.5mm
Diameter: ≤18.6mm
Refer to the attached drawing 1
3.14 Weight <47g
3.15 Max recommended charge and
discharge cell body temperature
Charge: 0~ 50ºC
Discharge: -20~ 70ºC
3.16 StorageTemperature
1 year: -20~25ºC
3 month: -20~ 45ºC
1 month: -20~ 60ºC
3.17 Humidity range 0~70%RH (non-condensing
Item Specication
DMax 18.6
L Max 65.5
units:mm
D
L

LIR18650R-25 •Li-ion cylindrical rechargeable battery
4. Appearance
There shall not be such defect as deep scrath, pits, creck, rust, leakage, which may adversely affect commercial
performance of the cell.
5. Technicalcharacteristics
5.1Celltestingconditions
Unless otherwise specied, all tests stated according to following: Temperature: 25±2.5ºC.
5.2Requirementofthetestingequipment
Voltagemeter: The voltage tester internal resistance is ≥ 10 KΩ/V.
Temperaturemeter: The precision is ≤0.5ºC.
5.3Electronicperformance
Standardcharge
This “Standard charge” means charging the cell with constant current 0.5C and then withconstant voltage 4.2V,
0.02C cut-off at 25±3ºC.
Standarddischargecapacity
The standard discharge capacity is the initial discharge capacity of the cell, which ismeasured with discharge
current of 0.2C with 2.5V cut-off at 25±3ºC after the standardcharge.
Standardrateddischargecapacity
The standard discharge capacity is the initial discharge capacity of the cell, which ismeasured with discharge
current of 10A with 2.5V cut-off at 25±3ºC after the standard charge.
Temperaturedependenceofdischargecapacity
Capacity comparison at each temperature, measured with
discharge constant current 10A and 2.5V cut-off after the
standard charge is as follows.
Note: If charge temperature and discharge temperature is not the same, the interval for temperature change is
three (3) hours. Percentage as an index of the capacity at 25ºC is 100%.
Dischargeratecapabilities
Discharge capacity is measured with the various currents in under table and 2.5V cut-off after the standard charge.
Dischargecondition
Current 0.5A 5A 10A 15A 20A
Relative capacity 100% ≥95% ≥95% ≥95% ≥95%
Cyclelife
Each cycle is an interval between the charge (charge current 0.5C) at 25±3ºC, rest 10 minutes, and discharge
(discharge current 20A) with 2.5V cut-off, then rest 45 minutes.
After 300 cycles, Capacity Retention = Cap (300th)/Cap (Av10)≥80%.
Storagecharacteristics
Storage for 30 days at 25±3ºC from the standard charge, measured with discharge constant current 10A with
2.5V cut-off at 25ºC.
Capacity retention (after the storage) ≥90%.
Dischargetemperature
-10ºC 0ºC 25ºC 60ºC
≥60% ≥80% 100% ≥95%

LIR18650R-25 •Li-ion cylindrical rechargeable battery
5.4MechanicalCharacteristics
NO. Item Criteria Testingmethod
5.4.1 Vibration There shall be no
electrolyte leakage
After standard fully charge, cell shall be attached to a vibration
table directly and subjected to vibration that consists of 10 Hz to
55 Hz to 10 Hz at the speed of 1Hz/min in 90~100mins.The total
excursion of the vibration is 0.8mm(0.060 inches). The cell shall
be vibrated in each direction along axis of the cylinder and the
vertical directions of axis of the cylinder.
5.5Safetycharacteristics
NO. Item Criteria Testingmethod
5.5.1 Overcharge No leakage,
No ame,
No re,
No explosion
The cell is discharged according to the standard discharge method.
Apply a 1C Constant current 12V constant voltagecharge for 1.5h.
5.5.2 130ºC
Hot oven
Testing
No re,
No explosion
After fully charging the cellfollowing the standard charge method and
put in the oven. And then the oven temperature will be ramped at 5ºC
per minute to 130ºC, When the temperature of the oven reach 130ºC,
the cell is maintained in the 130ºC oven for 60 minutes or until re or
explosion is obtained and Record the time that the cell temperature
reaches 130ºC and the time when a re or explosion occurs.
5.5.3 Crush
testing
No re,
No explosion
After fully charging the cellfollowing the standard charge method and
Put itbetween two at surfaces for a Crush Test.The direction of the
crushing force shall be vertical to axis of the cylinder.Using a pressure
device which has a 32mm diameter Hydraulic piston with 13 KN
Crushing force, Release the pressure immediately until the maximum
is reached.
5.5.4 Over-disch
arge test
No re,
No explosion
After standard charge, is to be over-discharged with 0.2C to 250%of
capacity.
5.5.5 Short circuit
testing
No re, No
explosion
Cell shall rst be charged according to standard charge method,
and then cellis to be short-circuited by connecting the positive and
negative terminals of the cell with copper wire having a maximum
resistance load of 50mΩ. This test is done at room temperature.
Monitor the cell temperature while testing. The cell is continuously
discharged until the cell case temperature has returned to be 10ºC
less then peak temperature.
5.5.6 Free falling
(drop)
No re, No
explosion
Each fully charged cell is dropped three times from a height of
1,0 m onto aconcrete oor. The cells are dropped so as to obtain
impacts in randomorientations.
Note: All above safety tests will be conducted at 25±3ºC except where specied differently. Use proper ventilation
with protective equipment.

LIR18650R-25 •Li-ion cylindrical rechargeable battery
6. Warranty
The warranty is specied in our warranties section of Terms of Sales. If the product is to be stored for more than
three months it is necessary to perform the appropriate maintenance to ensure the good condition of the batteries.
Consult our annex to the Terms of Sales on the recommended maintenance.
7. Activation
Please activate the battery once every three months according to the following method: Charge at a constant
current and constant voltage of 0.2C to 4.2V, and cut-off 0.01C, rest ten minutes, then discharge at a constant
current of 0.2C to 2.75V, and rest ten minutes, then charge at a constant current of 0.2C for three hours.
If the battery has been assembled or used, use the suitable matched charger and machines to activate.
8. Others
8.1.Storageforalongtime
If the cell is kept for a long time (3 months or more), it is strongly recommended that the cellis preserved at dry
and low temperature.
8.2.Others
Any matter not included in that specication should be discussed and conrmed by bothparties.
9. Package
100 cells per box, 2 boxes into a case, totally 200 cells.
10. Shipping
The capacity of delivery cell is approximately at 20-30% of charging.It is not guaranteed that 20-30% capacity
remain when reach customer, because of self-discharge. During transportation, preventthe cell from acutely
vibration, impacting, solarization, drenching.

LIR18650R-25 •Li-ion cylindrical rechargeable battery
Properuseandhandlingoflithium-ionbatteries
1. Charging
1.1 Charging voltage must be set 4.2V/cell. Concerning charge voltage tolerance of charger,charging voltage
must be set below 4.2V/cell. Even if the charge could be out of order,charge voltage of charger should not be
above 4.2V/cell to avoid over-charging. Cell life willbe shorten by charging voltage above 4.2V, leading to cell
failure, serious can appear safetyproblems.
1.2 Cell must be charged with CC (constant current) - CV (constant voltage) method. Do not usethe continuous
charging method.
1.3 In case of cell voltage is below 3.0V, Cell should be charged with pre-charge that current isbelow 0.1C. Then
cell voltage reach over 3.0V, standard charge starts. And if cell voltagenever reaches to 3.0V in specied
period (timer), charger will stop charging.
1.4 By timer, current detection and open circuit voltage detection, charger detects full charge.When charger
detect cell is full charged, charger stop charging.
2. Discharging
2.1 The discharge current of a cell must be below specied in the product specication.
2.2 The discharge end voltage of a cell must be over specied in the product specication.
2.3 The cell should not be over-discharged below 2.5V.
2.4 The cell should be discharged within a range of temperatures specied in the productspecication.
3. Storage
3.1 The cell should be stored in a dry area and no corrosive gas.
3.2 No press on the cell.
3.3 Storage temperature
When stored within 1 month : -20°C ~ +60°C
When stored within 3 months: -20°C ~ +45°C
When stored within 12 months : -20ºC ~ +25°C
3.4. After the cell assembled in pack, the pack should be recharged to 40% SOC if the pack hasnever been used
for one year, this will avoid the cell voltage drop too low.

LIR18650R-25 •Li-ion cylindrical rechargeable battery
4. Cyclelife
4.1 Charge or discharge out of recommended range might cause the generating heat or seriousdamage of cell.
And also, it might cause the deterioration of cell’s characteristics and cyclelife.
4.2Cyclelifeperformance
The cell can be charged/ discharged repeatedly up to times with a certain level of capacityspecied in the
production specication.
4.3 Cycle life may be determined by conditions of charging, discharging, operating temperatureand storage.
5. Precautionsonbatterypackdesign
5.1 Do not make the shape and mechanism which static electricity and water easy go throughthe battery pack
inside.
5.2 Overcharge protection should work below 4.2V/cell by charge. Then charge current shall beshut down.
5.3 Within a voltage range of 2.75V/cell, over-discharge protection should work. Then dischargecurrent shall be
shut down and consumption current is below 1μA.
5.4 When discharge current exceeds 60A, over-discharge current protection should work. Thenover discharge
current shall be shut down.
5.5 To avoid discharging during storage, design the low consumption current electronic circuit(e.g. Protection
circuit, fuel gauge, etc) inside battery pack.
6. BatteryPackAssembly
6.1 Prohibition of usage of damaged cell. Do not use abnormal cell which has been damaged byshipping stress,
drop, short, twice spot or something else, and which gives off electrolyteodor.
6.2 The cell should be inspected visually before battery assembly.
6.3 Inspect voltage and internal impedance before using.
6.4 Do not solder onto a cell in order to avoid damage on the cell. Weld spot welding lead plateonto cell, and solder
lead wire or lead plate.
6.5 The battery assembly must pay attention to anti-static, Avoid electronic componentsdamaged by electrostatic.
6.6 Battery assembly should pay attention to prevent the short circuit.

LIR18650R-25 •Li-ion cylindrical rechargeable battery
SafetyInstruction
Lithium-ion battery if use undeserved can cause cell damage and even harm the personalsafety, read it carefully
beforeusing and pay attention to the prevention measures.
Should there be any additional information required by the Customer, please contact us.
Danger!
1. Electricalmisusage
1.1 Use or charge the battery only in the stipulated application.
1.2 Use the correct charger for Lithium-ion batteries.
1.3 When connecting a battery pack to a charger, ensure correct polarity.
1.4 Do not reverse charge batteries.
1.5 Do not maintain secondary batteries on charge when not in use.
2. Environmentalmisusage
2.1 Never put a battery into water or seawater.
2.2 Don’t throw the battery into the re.
2.3 Do not use or leave the cell under the blazing sun (or in heated car by sunshine). The cellmay generate heat,
smoke or ame. And also, it might cause the deterioration of cell’scharacteristics or cycle life.
2.4 Do not dismantle, open or shred cells. Batteries should be dismantled only by trainedpersonnel. Multicell
battery cases should be designed so that they can be opened onlywith the aid of a tool.
2.5 Do not solder directly to batteries.
2.6 Do not subject batteries to adverse condition such as extreme temperature, deep cyclingand excessive
overcharge/over discharge.
2.7 Do not short-circuit batteries. Do not store batteries haphazardly in a box or drawer wherethey may short-circuit
each other or be short-circuited by conductive materials, permanentdamage to batteries may result.
2.8 Do not incinerate or mutilate batteries, may burst or release toxic material.
2.9 Do not subject batteries to mechanical shock.

LIR18650R-25 •Li-ion cylindrical rechargeable battery
Warning!
1.1 When using a new battery or a battery to be used for the rst time after long term storage,please fully charge
the battery before using.
1.2 Prohibition of reverse charge
Reverse charge is prohibited. Cells shall be connected correctly. The polarity has to beconrmed before wiring.
If a cell is connected improperly, the cell cannot be charged.Simultaneously, the reverse charging may cause
damage to the cell which may lead todegradation of cell performance and damage the cell safety, and could
cause heatgeneration or leakage.
1.3 Do not mix our batteries with other battery brands or batteries of a different chemistry suchas alkaline and zinc
carbon.
1.4 Do not mix new batteries in use with semi-used batteries, over-discharge may occur.
1.5 If nd any noise, excessive temperature or leakage from a battery, please stop its use.
1.6 When the battery is hot, please do not touch it and handle it, until it has cooled down.
1.7. Do not remove the outer sleeve from a battery pack nor cut into its housing.
1.8 When nd battery power down during use, please switch off the device to avoid overdischarge.
1.9. After using, if the battery is hot, before recharging it, allow it to cool in a well-ventilated placeout of direct
sunlight.
1.10 Do not attempt to take batteries apart or subject them to pressure or impact. Heat may begenerated or re may
result. The alkaline electrolyte is harmful to eyes and skin, and it maydamage clothing upon contact.
1.11 Never put a battery into water or seawater.
1.12 Keep the battery away from babies and children. If swallowed, see a doctor immediately.
1.13 In the event of a cell leaking, do not allow the liquid to come into contact with the skin oreyes. If contact has
been made, wash the affected area with copious amounts of water andseek medical advice.
Caution!
1.1 When not using a battery, disconnect it from the device.
1.2 Unplug a battery by holding the connector itself and not by pulling at its cord.
1.3 Used batters should be treated by authorized units.
1.4 After extended periods of storage, it may be necessary to charge and discharge thebatteries several times to
obtain maximum performance.
1.5 Secondary batteries give their best performance when they are operated at normal roomtemperature.
1.6 Keep batteries clean and dry.
1.7 Wipe the battery terminals with a clean dry cloth if they become dirty.
1.8 When disposing of secondary batteries, keep batteries of different electrochemical systems separate from
each other.