Fullwat LIR18650-34 User manual

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LIR18650-34 • Li-ion cylindrical rechargeable battery

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LIR18650-34 •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)
Item Specication
D18.4±0.2
L 65.4±0.2
units: mm
D
L

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LIR18650-34 •Li-ion cylindrical rechargeable battery
 3.Generalspecications
NO. Item Parameter
3.1
Normal capacity 3350mAh (at @0.2C discharge)
Minimum capacity 3250mAh (at @0.2C discharge)
Nominal capacity is measured by the discharge at 0.2C to 2.5V end voltage after standard fully
charged according to specication at 25ºC
3.2 Maximum charge voltage 4.20V±0.03V
3.3 Average working voltage [email protected]
3.4 Standard charge method (25ºC±2ºC)
Constant current and constant voltage (CC/CV)
Current 0l2C (670mA)
Voltage 4.2V
End current 67mmA±5mA
3.5 Maximum charge current
(not for cycle)
0ºC ≤ T ≤ 10ºC 0.1C (335mA)
10ºC ≤ T ≤ 20ºC 0.2C (670mA)
20ºC ≤ T ≤ 45ºC 0.3C (1005mA)
3.6 Charge time
Standard charge 6.0h
Rapid charge 4.0h
3.7 Standard discharge
Constant current (CC)
Current 0.2C (650mA)
End voltage 2.5V
3.8 Maximum discharge current
(not for cycle)
-20ºC ≤ T ≤ 20ºC 1.0C(3350mA)
20ºC ≤ T ≤ 45ºC 2.0C(6700mA)
3.9 Cycle life
500th cycle ≥70% of 1st Capacity (25ºC±2ºC, 4.2V-2.5V)
If charged and discharged at high rate and high
temperature (≥35ºC) frequently, cell cycle life will be
shorten. If charged and discharged at high temperature
(>45ºC) frequently, cell safety may be occurred.
3.10 Weight of bare cell Max. 50g
3.11 Operating environmental temperature
Charge 0ºC ~ 45ºC
Discharge -20ºC ~ 45ºC
3.12 Storagetemperature
(for shipping state)
1 month: -20~45ºC
3 months: -20~ 35ºC
12 months: -20~ 20ºC

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LIR18650-34 •Li-ion cylindrical rechargeable battery
 4.Appearance
There shall be no such defect as deep scratch, aw, crack, rust, leakage, which may adversely affect commercial
value of the cell.
 5.Testconditionanddenitions
5.1Measuringequipment
5.1.1 Slidecaliper:The slide caliper should have a scale of 0.02mm.
5.1.2 Voltage-Impedancemeter: The impedance meter should be operated at AC 1kHz.
5.2 Unless otherwise specied, all tests shall be performed at 25±2°C and humidity of 65±20% RH.
The cells used for the test mentioned should be new ones delivered a week before at most.
5.3Denitions
C Rate (“C”): The rate (milliamperes) at which a fully charged cell is discharged to its end voltage in one (1) hour.
 6.Characteristics
6.1Chargemethod
6.1.1 Charging shall consist of charging at a 0.2C constant current rate until the cell voltage reaches 4.2V. The
cell shall then be charged at constant voltage of 4.2V while tapering the charge current. Charging shall
be terminated when the charging current has tapered to 0.02C.
6.1.2 Charging shall consist of charging at a 0.3C constant current rate until the cell voltage reaches 4.2V. The
cell shall then be charged at constant voltage of 4.2V while tapering the charge current. Charging shall
be terminated when the charging current has tapered to 0.05C.
6.2Dischargemethod
6.2.1 Cells shall be discharged at a constant current of 0.2C to 2.5 volts.
6.2.2 Cells shall be discharged at a constant current of 0.5C to 2.5 volts.
6.2.3 Cells shall be discharged at a constant current of 1.0C to 2.5 volts.
6.2.4 Cells shall be discharged at a constant current of 2.0C to 2.5 volts.
6.3Internalimpedance
The impedance shall be measured by 5.1.2.
Initial Internal Impedance ≤ 35mΩ.
6.4Dischargeratecharacteristics
Cells shall be charged per standard charge method at 25ºC±2ºC and discharged per 6.2.1(0.2C), 6.2.2 (0.5C),
6.2.3 (1C), 6.2.4 (2C). The discharge capacity of each cell at respective discharge rate shall be compared with
the discharge capacity at 0.2C and the percentage shall be calculated. Each cell shall meet or exceed the
requirements of Table 1.
Table1
0.2C 0.5C 1C 2C
100% ≥95% ≥93% ≥90%

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LIR18650-34 •Li-ion cylindrical rechargeable battery
6.5 Cycle Life
Charge cells per 6.1. 2. Rest 15 minutes. Discharge per 6.2.3. Rest 15 minutes before recharge. The test
environmental temperature is 25ºC±2ºC. A cycle is dened as one charge and one discharge. Discharge
capacity shall be measured after 500 cycles.
Discharge capacity (500th Cycle) ≥ 70% of 1st Cycle Capacity
6.6Storagecharacteristics
After charge as per standard charge method 6.1.1, store the testing cells at 25ºC±2ºC for 28 days. Then
discharge as per 6.2.2. Then the same cell is fully charged as per 6.1.1 again and discharged a second time
and measured as per 6.2.2.
The recovery discharge capacity (2nd discharge capacity) ≥90% of Initial capacity.
6.7TemperatureCharacteristics
Cells shall be charged per standard charge method and discharged per 6.2.3. Cells, full charged, shall be stored
for 3 hours at the test temperature prior to discharging and then shall be discharged at the test temperature. The
capacity of a cell at each temperature shall be compared to the capacity achieved at 25ºC and the percentage
shall be calculated. Each cell shall meet or exceed the requirements of Table 2.
Table2
-10ºC 0ºC 25ºC 45ºC
≥70% ≥80% 100% ≥95%
7. SAFETY
7.1Externalshort-circuiting.Testat25ºC
Cell charged per standard charge method, is to be short circuited by connecting the positive (+) and negative
(-) terminals with a total external resistance of 80±20mohm. Stop the test when the cell voltage falls below 0.1V
and the cell case temperature has returned to a value within 10ºC of the original testing temperature.
Criteria: No Fire, No Explosion
7.2Overchargetest
Cell charged per standard charge method, is to be overcharged with 3C to 4.2V while tapering the charge
current. Monitoring change of cell temperature during testing. The charge duration is 7 hours. Stop the test
when cell temperature decays to room temperature.
Criteria: No Fire, No Explosion
873Overdischargetest
Cell charged per standard charge method, is discharged at constant current of 1C for 90min.
Criteria: No Fire, No Explosion
7.4Heatingtest
Cell charged per standard charge method, is to be placed in the hot oven. Store the testing cells connecting
with thermocouple in constant temperature box, heating the cells and box (speed of ascending temperature is
5ºC±2ºC per min) together at room temperature simultaneity, monitor the temperature change of the box, keep
for 30 minutes after the box temperature reaches 130ºC±2ºC, then stop the test.
Criteria: No Fire, No Explosion

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LIR18650-34 •Li-ion cylindrical rechargeable battery
7.5 Crush test
Cell charged per standard charge method, is to be crushed between two at surfaces and with cell longitudinal
axis parallel to the at surfaces of the crushing apparatus.The force for the crushing is to be applied by a
hydraulic ram with a 1.25 inch (32 mm) diameter piston. The crushing is to be continued until a pressurereading
of 2500 psig (17.2 MPa) is reached on the hydraulic ram, applied force of 3000 pounds (13 kN). Once the
maximum pressure has been obtained it is to be released.
Criteria: No Fire, No Explosion
7.6 Drop test
After charge as per 7.1.1, the cell is dropped from 1.5m above a concrete oor by the positive and negative
terminal down. Wait for 1h.
Criteria: No Fire, No Explosion
 8.Packaging
Loading 100 cells per box, 2 boxes per case for a total of 200 cells.
9. Others
Any matter not included in this specication shall be confered between the both parties.
10.Shipping
The capacity of delivery cell is 10%-30%SOC. It is not specied more than 10% capacity remain at customer,
because of self-discharge. During transportation, keep the cell from acutely vibration, impacting, solarization,
drenching.
11.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.
10*10
100pcs
100pcs
100pcs
214mm
230mm
222mm
238mm
74mm
170mm
200pcs
200pcs

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LIR18650-34 •Li-ion cylindrical rechargeable battery
The following caution and warning should appear in manuals and/or instructions for users, especially at the point
of use.
Properuseandhandlingoflithium-ionbatteries
 1.Electriccar,chargerandbatterypackdesignconsiderations
1.1Charging
1.1.1 Cell must be charged with constant current-constant voltage method. Charging voltage must below
4.20V/cell and the charging cut-off current is greater than or equal to 1/20C. Even if the charge could be
out of order, charge voltage of charger should not be above 4.23V/cell to avoid over-charging. Cell life
will be shorten by charging voltage above 4.20V.
1.1.2 Charger should be equipped with a complete charging detection device including the timer inspection,
current and open circuit voltage to detect the current state of charge. When one of the detection such
as timer, current and voltage detected the full charge, charge should be completely cut off the charging
circuit, avoid produce turbulence.
1.1.3 Charger should start charging at temperature range 0ºC~ +45ºC (see spec 3.5).When the cell temperature
exceeds this range, it should be placed in the battery temperature to teach the above range before
recharging.
1.1.4 For cycle life, use the normal charging or trickle charging method and minimize the fast charge.
1.2Discharging
1.2.1 Discharge end voltage must be over 2.5V.
1.2.2 Discharge temperature range should be -20ºC ~ +45ºC (see spec 3.8). If surface temperature exceeds
55 degrees, the discharge must be stopped.
1.3Storage
Any storage, cell should be in low humidity (less than 70%RH), no corrosive gas atmosphere area. And there is
no press and condensation on the cell. Best temperature range -20ºC~20ºC. The capacity of cell is 25%-35%
SOC.
When stored within 1 month: -20ºC ~ 45ºC
When stored within 3 months: -20ºC ~ 35ºC
When stored within 12 months: -20ºC ~ 20ºC
1.4Precautionsonbatterypackdesign
1.4.1 BatterypackShape,MechanismandMaterial.
The battery pack should be designed to ensure that it can not be charged by an unauthorized charger.
The battery pack should be designed to ensure that it can not be connected to unauthorized equipment
and equipment; both ends of the battery pack should be designed to avoid short circuits or positive
and negative The battery pack design should have anti-static function and can prevent the dust , The
battery should be designed so that even if the battery leakage occurs, the electrolyte can not reach the
protection circuit board; battery design should ensure that the battery is xed in the battery pack, can not
move; battery pack in the structure should ensure that The use of materials such as double-sided tape
and rubber should verify its ammability; welding mold should be sealed with glue; if the welding die in
the sealed when the welding of the mold can not be used, The use of ultrasonic welding method, for the
emergence of any defects, God does not bear anything Either.

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LIR18650-34 •Li-ion cylindrical rechargeable battery
1.4.2 Batterypackstructure (battery pack limits the number of batteries used).
The number of parallel connections is unlimited, but the battery pack must pass the overcharge test (the
charging current of the overcharge test is the maximum charge current of the charger and the product
of the parallel quantity); the number of series is unlimited and the fuse is required; the battery should be
away from the heat Device to avoid deterioration of battery performance; PCBA circuit board and battery
pack should be insulated between the insulation material (such as plastic barrier to provide air isolation
or non-conducting thermal insulation material).
If charged and discharged at high rate and high temperature (≥35ºC) frequently, cell cycle life will be
shorten. If charged and discharged at high temperature (≥55ºC) frequently, cell safety may be occurred.
1.4.3 ProtectionCircuitinsuresafetyofbattery
The following protection circuit should be installed in the battery pack:
Overchargeprotection. For safety reasons and in order not to shorten the cycle life, the maximum
overcharge protection voltage for the individual cells within each module should be less than 4.23V
(including tolerances);
Overdischargeprotection. If the single cell voltage reaches 2.5V, we recommend that the discharge
protection should cut off the discharge current, the circuit current consumption should be as small as
possible;
Overcurrent protection. If the discharge current of the single cell exceeds about 2C, the overcurrent
protection should cut off the discharge current circuit.
Externalshortprotection: The battery pack has function not to cause external short cut.
Overtemperatureprotection: Set the temperature protection of pack according to the cell use condition
in SPEC.
Battery pack should have cell voltage balancing function and cell imbalance protection circuit.
Battery pack should have function to avoid thermal propagation when the cell is failure.
Weld spot welding lead plate onto cell, and solder lead wire or lead plate. the battery pack in the
discharge, the internal cell temperature difference should be less than or equal to 5ºC.
In order to avoid long-term storage over discharge mode, battery pack protection circuit current
consumption should be set as small as possible. Long-term use, to regularly check the remaining state
of electricity, to ensure that the battery within the single cell can not achieve over-discharge state.
1.4.4 Cell connection
Do not solder onto a cell in order to avoid a damage on the cell. The battery pack should be equipped
with appropriate shock absorbers in the pack in order to minimize shock, which can damage the cells.
1.5Cellusage
1.5.1 When using batteries for serial and use, use the same gear, the same batch and the same state of
charge batteries, you can get this information from the inside and outside the box label. Batteries need
to be used before the detection of voltage resistance, and in accordance with its use for the combination,
God recommended at least to ensure that the use of batteries within 30mV voltage within the internal
resistance within 6mOhm.
1.5.2. Battery pack before shipment Check the voltage, internal resistance, protection line function, thermistor,
thermal fuse.
1.5.3 Transfer the batteries to the assembly process to pay special attention to prohibit the transport process
caused by external damage, the transport process is recommended to use the same transport packaging,
even if there is a process of opening the package.
1.5.4 Do not use damaged or leaked batteries due to transport damage, drop, short circuit or other reasons.

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LIR18650-34 •Li-ion cylindrical rechargeable battery
 2.Safetyinstructions
Batteries containing organic solvents and other ammable substances, such as improper use may cause the core
heat or re, resulting in damage to the battery or personal injury. Please pay attention to the use of prohibited items,
while the protection device should be added to avoid the use of equipment caused by abnormal batteries accident.
Before using lithium-ion rechargeable batteries, please read the following safety guidelines carefully. In addition,
God strongly recommends adding these instructions to the user manual.
2.1Dangerousmatter
2.1.1 Don’t use or place batteries in high temperature (above 55ºC) environment. Do not put it into re, water
or make it moisture. Do not repair or disassemble batteries, there is a risk of causing the batteries to
ignite, overheat, leak or explode.
2.1.2 Don’t place the batteries in a chaotic manner, away from metal and other conductive materials to avoid
positive (+) negative (-) short circuit, do not reverse the positive (+) negative (-) pole
2.1.3 Don’t use non-specied charging equipment and violate charging requirements. Non-specied conditions
charge will cause the battery to overcharge or abnormal chemical reactions, heat generation, smoke,
rupture or re.
2.1.4 Don’t connect the battery to the AC plug (outlet) or the car plug. The battery needs to have a specic
charger. If the battery is connected directly to the plug, the battery may catch re, smoke, explode, or
cause heat.
2.1.5 Don’t overcharge, over-discharge, drive nail into the cell, strike it by hammer or tread and step on it 2.1.6
Don’t hit or throw batteries. If the batteries appear to fall, please treat the waste, can not continue to use.
2.1.7 Don’t dissect the battery. If the protection line is damaged, the battery will no longer be protected. Then,
the battery may re, smoke, explode or cause heat.
2.1.8 Don’t charge near high temperatures. If the battery is charged near the high temperature, the battery
can not be recharged due to the protection line. In this case, the protection circuit may be interrupted,
the battery may re, smoke, explode or cause heat.
2.1.9 Don’t use batteries that are clearly damaged or deformed. May cause fever, smoke, rupture or burning.
2.1.10 Don’t direct soldering of batteries, overheating will lead to insulation gaskets and other parts of the
deformation, causing cell deformation, leakage, explosion or re.
2.1.11 Don’t reverse polarity charge. In the case of charging, the battery is reverse charging will be abnormal
chemical reaction. In addition, there is an unpredictable high current through the discharge. These may
cause heat, smoke, rupture or burning.
2.2Warning!
2.2.1 Batteries should be kept away from infants and young children. In case of swallowing the battery, please
seek medical attention immediately.
2.2.2 Don’t place the battery in a microwave oven or other cooking utensils. Due to the heating and electrical
shock of the microwave oven, the battery may ignite, smoke, explode or cause heat.
2.2.3 Don’t mix with other batteries. The battery can not be mixed with other different capacities, chemical
systems, or manufacturers’ batteries. Do not connect other batteries or mix other batteries. The battery
may catch re, smoke, explode or cause heat.
2.2.4 Don’t use an abnormal battery. If there are obvious abnormalities, such as odor, fever, deformity or
discoloration, stop using the battery. Such batteries may be defective and, if used, may cause re,
smoke, heat or explosion.
2.2.5 If the charging process does not end, stop charging. If the battery can not complete the charging process for
a specied period of time, stop the charging step. The battery may catch re, smoke, explode or cause heat.
2.2.6 Don’t use a leaky battery near a ame. If the battery or liquid out of the battery produces a pungent odor,
the battery should remain away from the ame. The battery may be ignited or exploded.

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2.2.7 Don’t touch the leaky battery. If the liquid leaked from the battery into the eyes, will cause serious
damage. If you come from your leaked liquid into your eyes, rinse your eyes with water immediately.
Please consult a doctor immediately. If the liquid is left in the eyes, it will cause serious damage.
2.2.8 In order to avoid short circuit or damage, please tightly put the battery into a box or carton.
2.2.9 Don’t store the cell in a pocket or a bag together with metallic objects such as keys, necklaces, hairpins,
coins, or screws.
2.3Precautions
2.3.1 Don’t use or place batteries in high temperature environments, such as in direct sunlight. The battery
may catch re, smoke, explode or cause heat. At the same time, may cause battery performance and
life degradation.
2.3.2 Battery pack has a protective line. Do not use batteries in places where static electricity (over 100V)
is generated, which may damage the protection circuit. If the protective line of the battery is damaged,
the battery may catch re, smoke, explode or cause heat. Do not use Lithium ion cell with the primary
batteries or secondary batteries whose capacity or kinds or maker is different. If do that, the cell will
be discharged or charged excessively in use. And it may cause the generating heat, smoke, rupture or
ame because of the abnormal chemical reaction in cells.
2.3.3 Specied the charging temperature range. Do not charge the battery outside the specied temperature
range. Failure to do so may result in heat, leakage, or serious damage. In addition, battery performance
and life degradation may occur.
2.3 4 Please read the manual before use. Please keep this manual for future reference.
2.3.5 Please read the charging method of the charger manual.
2.3.6 In the rst use, if the battery has an abnormal smell, heat or rust, please contact the supplier.
2.3.7 Keep away from ammable materials during charging and discharging. May cause re, smoke, explosion
or cause heat.
2.3.8 If the electrolyte leaks from the battery, gets on the clothes or on the skin, rinse it immediately with water.
Otherwise it may irritate the skin.
2.3.9 If wires or metal objects come out of the battery, completely seal and insulate them. Otherwise, the
battery may cause a short circuit, re, smoke, explosion, or cause heat.
2.3.10 After use, please carry out battery recycling according to local laws and regulations.
 3.Exclusionliability
3.1 We are not liable for any loss caused by breach of notice in the specication;
3.2 We are not responsible for any problems caused by design defects in battery packs, electric cars and chargers;
3.3 We do not accept abnormal batteries caused by improper assembly.
3.4 We are not liable for any loss caused by incorrect or incongruent with the SPEC charge and discharge method
and inappropriate environment.
3.5 We are not liable for any force majeure (ex. Lightening, storm, ood, re, earthquake, etc).
3.6 In order to standardize the use of sample batteries, the rights, obligations and responsibilities of every customer
and us are claried. Before using the battery, please read carefully and thoroughly understand the contents
of the specication. In order to ensure the safety of the battery, please contact us to discuss design of the
application. Also, if there are special usage conditions (for example: a large current load, a quick charge
method, or a special usage pattern), please consult us before nalizing the product specication.
If you choose to use this battery, your use will be regarded as an endorsement of all the contents of this
statement.
For the sake of safety assurance, please discuss the equipment design, its system and protection circuit of
Lithium-ion cell with us in advance. And consult about the high rate current, rapid charge and special application
in the same way.