Fullwat LIR18650-26 User manual

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LIR18650-26 •Rechargeable Lithium Battery

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1. Model
LIR18650-26
2. Scope
This specification describes the basic performance,technical requirement, testing method, warning and caution of
the Li-Ion cylindrical rechargeable battery. The specification only applies to FULLWAT.
3. Initial dimension
T 65.2±0.2 D 18.2±0.2 UNIT mm
LIR18650-26 • Rechargeable Lithium battery

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LIR18650-26 •Rechargeable Lithium battery
4. Specification
NO. Item Specifications
4.1 Nominal capacity 2600mAh Std. charge/discharge
Min. capacity 2550mAh Std. charge/discharge
4.2 Nominal voltage 3.6V
4.3 Charge current Standard Charge: 0.5C (1250mA)
Rapid charge: 1C (2500mA)
4.4 Standard charging method 1250mA (constant current) charge to 4.2V, then
CV (constant voltage 4.2V) charge till charge current
decline to ≤50mA
4.5 Charging time Standard Charging
Approx 5 hours
Rapid charge
Approx 2 .5hours
4.6 Max.charge current Constant Current 2500mA
Constant Voltage 4.2V 50mA cut-off
4.7 Max.discharge current Constant current 10000mA end voltage3.0V
4.8 Standard discharge current Constant current 500mA end voltage3.0V
4.9 Discharge lower limit voltage 3.0V
4.10 Charge upper limit voltage 4.20V
4.11 Initial impedance ≤60mΩ
4.12 Weight Approx. 46g
4.13 Operating temperature Charging 0ºC ~45ºC
Discharging -20ºC ~60ºC
-20ºC ~60ºC ≤1 month
Percentage of recoverable capacity no
4.14 Storage temperature -20ºC ~45ºC ≤3 month less than 70% of the initial capacities
-20ºC ~20ºC ≤1 year
Constant current 1250 charge to 4.2V, then constant
voltage charge to current declines to 50mA, rest for
4.15 Recoverable capacity 10min. constant current 1250 discharge to 3.0V, rest for
10min. Repeat above steps 3 times, recording the
maximum capacity
4.16 Storage humidity ≤75% RH
4.17 A ppearance Without scratch,distortion,contamination and leakage
Temperature: 23±5ºC
4.18 Standard environmental condition Humidity: 45-75%RH
Atmospheric Pressure: 86-106 Kpa
Note - Above testing of safe characteristic must be with protective equipment.

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LIR18650-26 •Rechargeable Lithium battery
5. Performance Specification
5.1 Standard test condition
5.1.1 Standard Charge
Unless otherwise specified, “Standard Charge” shall consist of charging at constant current of 1,250mA.
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 50mA. For test purposes, charging shall be
performed at 25ºC ± 2ºC.
5.1.2 Standard Discharge
“Standard Discharge” shall consist of discharging at a constant current of 500mA to 2.75V. Discharging is to
be performed at 25 ºC ± 2 ºC unless otherwise noted (such as capacity versus temperature).
5.1.3 Fast Charge / discharge condition
Cells shall be charged at constant current of 1,250mA to 4.2V with end current of 125mA. Cells shall be
discharged at constant current of 2,500mA to 2.75V. Cells are to rest 30 minutes after charge and 30
minutes after discharge.
5.2 Electrical Specification
5.3 Environmental Specification
* Remaining Capacity : After storage, cells shall be discharged with Std. condition(5.1.2) to measure the remaining capacity.
** Recovery Capacity : After storage, cells shall be discharged with Std. discharge condition(5.1.2), and then cells shall be
charged with std. charge condition(5.1.1), and then discharged with Std. condition(5.1.2). This charge / discharge cycle shall
be repeated three times to measure the recovery capacity.
No. Item Condition Specification
5.2.1 Initial AC Impedance Cell shall be measured at 1kHz after charge per 5.1.1 ≤60mΩ
5.2.2 Initial Capacity Cells shall be charged per 5.1.1 and discharged Cini≥2,500mAh (Cmin)
per 5.1.2 within 1h after full charge.
5.2.3 Cycle life Cells shall be charged and discharged per 5.1.3, ≥70% (of Cmin in 4.1)
500 cycles. A cycle is defined as one charge and
one discharge. 501st discharge capacity shall be
measured per 5.1.1 and 5.1.2
Item Condition Specification
5.3.1 Storage Cells shall be charged per 5.1.1 and stored in a Capacity remaining rate ≥
Characteristics temperature-controlled environment at 25ºC ± 2ºC 90% of Cmin in 4.1
for 30 days. After storage, cells shall be discharge
per 5.1.2 to obtain the remaining capacity.*
5.3.2 High Temperature Cells shall be charged per 5.1.1 and stored in a No leakage,
Storage Test temperature-controlled environment at 60ºC for Capacity recovery rate ≥
1 week. After storage, cells shall be discharged 80% of Cmin in 4.1
per 5.1.2 and cycled per 5.1.1 and 5.1.2 for
3 cycles to obtain recovery capacity*.
5.3.3 Thermal Shock Test 65ºC (8h) ← 3hrs → -20ºC (8h) for 8 cycles with cells No leakage
charged per 4.1.1 After test, cells are discharged Capacity recovery rate ≥
per 5.1.2 and cycled per 5.1.3 for 3 cycles to obtain 80% of Cmin in 4.1
recovery capacity.
5.3.4 Temperature Cells shall be charged per 4.1.1 at 25ºC ± 2ºC and
Dependency of discharged per 4.1.2 at the following temperatures.

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LIR18650-26 •Rechargeable Lithium battery
Capacity
Charge Discharge Capacity
-10ºC 70% of C
min
0ºC 80% of C
min
25ºC
25ºC 100% of C
min
60ºC 95% of C
min
5.4 Mechanical Specification
Note - Above testing of safe characteristic must be with protective equipment.
No Item Condition Specification
5.4.1 Drop Test Cells charged per 5.1.1 are dropped onto an oak No leakage
board from 1 meter height for 1 cycle, 2 drops from No temperature rising
each cell terminal and 1 drop from side of cell.
(Total number of drops =3).
5.4.2 Vibration Test Cells charged per 5.1.1 are vibrated for 90 minutes per No leakage
each of the three mutually perpendicular axes (x, y, z)
with total excursion of 0.8mm, frequency of 10Hz
to 55Hz and sweep of 1Hz change per minute.
5.5 Safety Specification
No Item Condition Specification
5.5.1 OverchargeTest Cells are discharged per 5.1.2, then charged at No explode, No fire
constant current of 3 times the max. charge condition
and constant voltage of 4.2V while tapering the charge
current. Charging is continued for 7 hours (Per UL1642).
5.5.2 External Short - Cells are charged per 5.1.1, and the positive and No explode, No fire
Circuiting Test negative terminal is connected by a 100mΩ-wire
for 1 hour (Per UL1642).
5.5.3 Overdischarge Cells are discharged at constant current of 0.2C No explode, No fire
to 250% of the minimum capacity.
5.5.4 Heating Test Cells are charged per 5.1.1 and heated in a circulating No explode, No fire
air oven at a rate of 5ºC per minute to 130ºC. At 130ºC,
oven is to remain for 10 minutes before test is
discontinued (Per UL1642).
5.5.5 Impact Test Cells charged per 5.1.1 are impacted with their No explode, No fire
longitudinal axis parallel to the flat surface and
perpendicular to the longitudinal axis of the 15.8mm
diameter bar (Per UL1642).
5.5.6 Crush Test Cells charged per 5.1.1 are crushed with their No explode, No fire
longitudinal axis parallel to the flat surface
of the crushing apparatus (Per UL1642).

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LIR18650-26 •Rechargeable Lithium battery
6. Battery Protection
The battery shall be with the over-charging prevention, over-discharging prevention, and over-current prevention
during use. Protective circuit shall have protective functions as follows:
1. Over-charging protection
Overcharging prevention stops charging if any cell of the battery pack reaches 4.25V.
2. Over-discharging protection
The Over-discharging protection monitors the voltage of every cell in the pack and works to avoid a drop in the
cell voltage to 2.8V or less.
3. Over-current protection
The cell shall be discharged at less than the maximum discharge current specified in the Specification Approval
Sheet. A high discharging current may reduce the discharge capacity significantly or cause overheating.
7. Caution in use
To ensure proper use of the battery please read the manual carefully before using it.
Handling
– Do not expose to, dispose of the battery in fire.
– Do not put the battery in a charger or equipment with wrong terminals connected.
– Avoid shorting the battery
– Avoid excessive physical shock or vibration.
– Do not disassemble or deform the battery.
– Do not immerse in water.
– Do not use the battery mixed with other different make, type, or model batteries.
– Keep out of thee rach of children.
Charge and discharge
– Battery must be charged in appropriate charger only.
– Never use a modified or damaged charger.
– Do not leave battery in charger over 24 hours.
Storage
– Store the battery in a cool, dry and well-ventilated area.
Disposal
– Regulations vary for different countries. Dispose of in accordance with local regulations.
Note - Above testing of safe characteristic must be with protective equipment.
8. Battery operation instruction
Charging
– Charging current: Cannot surpass the biggest charging current which in this specification book stipulated.
– Charging voltage: Does not have to surpass the highest amount which in this specification book stipulated to
decide the voltage.
– Charge temperature: The battery must carry on the charge in the ambient temperature scope which this
specification book stipulated
Uses the constant electric current and the constant voltage way charge, the prohibition reverse charges. If the
battery positive electrode and the cathode meet instead, can damage the battery.
Discharging current
The discharging current does not have to surpass this specification book stipulation the biggest discharging current,
the oversized electric current electric discharge can cause the battery capacity play to reduce and to cause the
battery heat.
Discharge temperature
The battery discharge must carry on in the ambient temperature scope which this specification book stipulated.
Over-discharges
After the short time excessively discharges charges immediately cannot affect the use, but the long time excessively
discharges can cause the battery the performance, battery function losing. The battery long-term has not used, has
the possibility to be able to be at because of its automatic flashover characteristic certain excessively discharges the
condition, for prevented excessively discharges the occurrence, the battery should maintain the certain electric
quantity.
Storing the Batteries
The battery should store in the product specification book stipulation temperature range. If has surpasses above for
six months the long time storage, suggested you should carry on additional charge to the battery.
9. Warranty
The warranty is specified 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. Other The Chemical Reaction
Because batteries utilize a chemical reaction, battery performance will deteriorate over time even if stored for a long
period of time without being used. In addition, if the various usage conditions such as charge, discharge, ambient
temperature, etc. are not maintained within the specified ranges the life expectancy of the battery may be shortened
or the device in which the battery is used may be damaged by electrolyte leakage. If the batteries cannot maintain a
charge for long periods of time, even when they are charged correctly, this may indicate it is time to change the
battery.
11. Note:
Any other items which are not covered in this specification shall be agreed by both parties.

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LIR18650-26 •Rechargeable Lithium battery
Note - Above testing of safe characteristic must be with protective equipment.
6. Battery Protection
The battery shall be with the over-charging prevention, over-discharging prevention, and over-current prevention
during use. Protective circuit shall have protective functions as follows:
1. Over-charging protection
Overcharging prevention stops charging if any cell of the battery pack reaches 4.25V.
2. Over-discharging protection
The Over-discharging protection monitors the voltage of every cell in the pack and works to avoid a drop in the
cell voltage to 2.8V or less.
3. Over-current protection
The cell shall be discharged at less than the maximum discharge current specified in the Specification Approval
Sheet. A high discharging current may reduce the discharge capacity significantly or cause overheating.
7. Caution in use
To ensure proper use of the battery please read the manual carefully before using it.
Handling
– Do not expose to, dispose of the battery in fire.
– Do not put the battery in a charger or equipment with wrong terminals connected.
– Avoid shorting the battery
– Avoid excessive physical shock or vibration.
– Do not disassemble or deform the battery.
– Do not immerse in water.
– Do not use the battery mixed with other different make, type, or model batteries.
– Keep out of thee rach of children.
Charge and discharge
– Battery must be charged in appropriate charger only.
– Never use a modified or damaged charger.
– Do not leave battery in charger over 24 hours.
Storage
– Store the battery in a cool, dry and well-ventilated area.
Disposal
– Regulations vary for different countries. Dispose of in accordance with local regulations.
8. Battery operation instruction
Charging
– Charging current: Cannot surpass the biggest charging current which in this specification book stipulated.
– Charging voltage: Does not have to surpass the highest amount which in this specification book stipulated to
decide the voltage.
– Charge temperature: The battery must carry on the charge in the ambient temperature scope which this
specification book stipulated
Uses the constant electric current and the constant voltage way charge, the prohibition reverse charges. If the
battery positive electrode and the cathode meet instead, can damage the battery.
Discharging current
The discharging current does not have to surpass this specification book stipulation the biggest discharging current,
the oversized electric current electric discharge can cause the battery capacity play to reduce and to cause the
battery heat.
Discharge temperature
The battery discharge must carry on in the ambient temperature scope which this specification book stipulated.
Over-discharges
After the short time excessively discharges charges immediately cannot affect the use, but the long time excessively
discharges can cause the battery the performance, battery function losing. The battery long-term has not used, has
the possibility to be able to be at because of its automatic flashover characteristic certain excessively discharges the
condition, for prevented excessively discharges the occurrence, the battery should maintain the certain electric
quantity.
Storing the Batteries
The battery should store in the product specification book stipulation temperature range. If has surpasses above for
six months the long time storage, suggested you should carry on additional charge to the battery.
9. Warranty
The warranty is specified 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. Other The Chemical Reaction
Because batteries utilize a chemical reaction, battery performance will deteriorate over time even if stored for a long
period of time without being used. In addition, if the various usage conditions such as charge, discharge, ambient
temperature, etc. are not maintained within the specified ranges the life expectancy of the battery may be shortened
or the device in which the battery is used may be damaged by electrolyte leakage. If the batteries cannot maintain a
charge for long periods of time, even when they are charged correctly, this may indicate it is time to change the
battery.
11. Note:
Any other items which are not covered in this specification shall be agreed by both parties.