Document Name Document No. Ver Date Page
SLF7H12-L
Specification ZJQM-RD-SPC-A0176 0.0 2014/10/15 1/8
EEMB CO., LTD
Lithium Iron Phosphate Battery
Specification
Model：
SLF7H12-L
Capacity： 7Ah
Prepared Checked Approved
Mike Cai Tina Cheng Alex Lee
Customer：
Customer Approval（Customer confirmation）:
Signature Checked Approved
Address：Room ABCD, 25/F, Block A, Fortune Plaza, NO.7060 Shennan Road Shenzhen, China
Postal code：518040
Phone：0086-755-83022275 FAX：0086-755-83021966
http://www.eemb.com
Document Name Document No. Ver Date Page
SLF7H12-L
Specification ZJQM-RD-SPC-A0176 0.0 2014/10/15 2/8
Catalog
Chapter Content Pag
e
0 Catalog………………………………………………………………………………………………… 2
1 Scope………………………………………………………………………………………………… 3
2 Battery Cell Basic Characteristics…………………………………………………………………… 3
2.1 Model………………………………………………………………………………………………… 3
2.2 Capacity……………………………………………………………………………………………… 3
2.3 Nominal Voltage……………………………………………………………………………………… 3
2.4 Weight………………………………………………………………………………………………… 3
2.5 Internal Impedance…………………………………………………………………………………… 3
2.6 Dimension……………………………………………………………………………………………… 3
2.7 Charge………………………………………………………………………………………………… 3
2.8 Discharge……………………………………………………………………………………………… 3
2.9 Operation Temperature………………………………………………………………………………… 3
2.10 Storage Temperature………………………………………………………………………………… 3
2.11 Storage Relative Humidity…………………………………………………………………………… 3
3 Appearance…………………………………………………………………………………………… 3
4 Battery Cell Specification……………………………………………………………………………… 3
4.1 Electrical Characteristics……………………………………………………………………………… 3
4.1.1 1C5A rate discharge capacity………………………………………………………………………… 3
4.1.2 High temp. discharge capacity………………………………………………………………………… 3
4.1.3 Low temp. discharge capacity………………………………………………………………………… 4
4.1.4 Cycle Life……………………………………………………………………………………………… 4
4.1.5 Capacity Retention…………………………………………………………………………………… 4
4.2 Acclimatization Characteristics……………………………………………………………………… 4
4.2.1 High Temp. and High Humidity ……………………………………………………………………… 4
4.2.2 Vibration ……………………………………………………………………………………………… 4
4.2.3 Drop…………………………………………………………………………………………………… 4
4.2.4 Low-pressure………………………………………………………………………………………….. 4
4.3 Safety Characteristics………………………………………………………………………………… 4
4.3.1 Overcharge…………………………………………………………………………………………… 4
4.3.2 Short-Circuit…………………………………………………………………………………………… 4
4.3.3 Heating………………………………………………………………………………………………… 5
4.3.4 Temperature cycle……………………………………………………………………………………... 5
5 Spec of PCM…………………………………………………………………………………………… 5-6
6 Battery Pack’s dimension ……………………………………………………………………………... 6
7 Battery Pack’s voltage and internal resistance………………………………………………………. 6
8 Warranty………………………………………………………………………………………………. 6
9 Matters needing attention……………………………………………………………………………… 7-8
Document Name Document No. Ver Date Page
SLF7H12-L
Specification ZJQM-RD-SPC-A0176 0.0 2014/10/15 3/8
1. Scope
This product specification defines the requirements of the rechargeable lithium iron phosphate battery
supplied to the customer by EEMB Co., Ltd.
2. Battery Cell Basic Characteristics
No. Item Characteristics Remark
2.1 Model SLF7H12-L
Nominal Capacity 7000 mAh 0.2C5A
2.2 Capacity Minimum 6700 mAh 0.2C5A
2.3 Nominal Voltage 3.2 V
2.4 Weight Approx.175 g
2.5 Internal Impedance ≤ 60 mΩ AC 1KHz(50% charge)
Length ≤ 130 mm
Width ≤ 62 mm
2.6 Dimension
Thickness ≤ 86 mm
Maximum Current 7000 mA 1C5A（CC&CV）
Limited Voltage 3.65±0.020 V
2.7 Charge
End-of Current 140 mA
Maximum Current 14000 mA 2.0C5A
2.8 Discharge End Voltage 2.0±0.005 V
Charge 0 ~ 45
℃
2.9 Operation
Temperature Discharge -10 ~ +60 ℃
1 month -20 ~ +60 ℃
3 month -20 ~ +45 ℃
2.10 Storage
Temperature 12 month -20 ~ +25 ℃
2.11 Storage Relative Humidity 65±20 %
3. Appearance
It shall be free from any defects such as remarkable scratches, breaks, cracks, discoloration, leakage, or
middle deformation.
Document Name Document No. Ver Date Page
SLF7H12-L
Specification ZJQM-RD-SPC-A0176 0.0 2014/10/15 4/8
4. Battery Cell Specification
4.1 Electrical Characteristics
No. Item Criteria Test Instructions
4.1.1 1C5A rate discharge
capacity
Discharge Capacity≥
Minimum Capacity
Within 1hour after full charge, discharge to two ends of
the battery with constant current 1C5A to 2.0V.
4.1.2 High temp. discharge
capacity Discharge Time≥54min
After full charge, store at 55±2℃ for 2h, then dis
charge at the same temperature with 1.0C5A to 2.0
V.
4.1.3 Low temp. discharge
capacity Discharge Time≥3h After full charge, store at -10 ±℃2℃ for 16h~24h, then
discharge at the same temperature with 0.2C5A to 2.0V
4.1.4 Cycle Life ≥2000 Cycles
After full charge, rest for 10 min, then discharge at
constant current 0.5C5A to 2.0V, rest for 10 minutes.
Repeat above steps until the two consecutive cycles of
discharge time is less than 84min.
4.1.5 Capacity Retention Discharge Time≥4.5 h After full charge, store at 20±5℃for 28 days. Then
discharge with 0.2C5A to 2.0V
4.2 Acclimatization Characteristics
No. Item Criteria Test Instructions
4.2.1 High Temp. and High
Humidity
No deformation, no rust,
no fire or explosion;
Discharge time ≥36min
After full charge, store at 40℃±2℃(90%~95%RH) for
48h. After test, place at 20℃±5℃ for 2h and then
discharge with 1C5A to end-voltage
4.2.2 Vibration
No damnification,
leakage, no fire or
explosion;
Battery Voltage≥3.2V
Batteries are vibrated 30 min in three mutually
perpendicular directions with amplitude of 0.38mm
(10~30Hz) or 0.19mm (30~55Hz) and the scanning
rate of 1oct per min
4.2.3 Drop
No leakage, no fire or
explosion;
Discharge Time≥51 min
Batteries are dropped onto a hard board with the
thickness of 18~20mm from height of 1000mm,drop
freely from each positive and negative direction(six
direction) of X, Y, Z for one time, after that, discharge
with 1C5A to end-voltage
4.2.4 Low-pressure No leakage, no fire or
explosion
Put the batteries in a sealed vacuum and reduce
internal pressure gradually to lower than 11.6 kpa.
Keep for 6h
Document Name Document No. Ver Date Page
SLF7H12-L
Specification ZJQM-RD-SPC-A0176 0.0 2014/10/15 5/8
4.3 Safety Characteristics
No. Item Criteria Test Instructions
4.3.1 Overcharge No fire or explosion
Put the batteries with thermocouple into the ventilation cabinet.
Connect the polarities to constant voltage and adjust the current to
3C5A, voltage to 4.8V. Charged the cells with 3C5A until voltage of
4.8V and current approach 0 A.
4.3.2 Short-Circuit
No fire or explosion;
The maximum
Temperature: 150℃
Put the batteries with thermocouple into the ventilation cabinet.
Batteries are short-circuited by connecting the positive and negative
terminals with a total resistance load of 100mΩ. Watch the changes of
temperature. End the test when the temperature of the batteries drops to
10℃ lower than the peak value.
4.3.3 Heating No fire or explosion Cell is heated in a circulating air oven at a rate of (5±2)℃per minute
to 130±2℃, and then placed for 30 minutes
4.3.4 Temperature
cycle
No leakage, no fire or
explosion
After full charge , place the battery in the temperature control box of
20±5℃, do the following steps:
⑴Put the battery into test chamber of 75℃±2℃and keep for 6h.
⑵Lower the temperature to -40±2℃ and keep for 6h
⑶Temperature conversion time is no longer than 30 min
⑷Repeat the above three steps for 10 cycles.
Note: Unless otherwise specified, all tests stated in this specification are conducted at the following conditions:
Temp. : 20±5℃; Relative Humidity: 25%～85%.
5. Specification of PCM
The specification shall be applied to Lithium polymer battery protection circuit module manufactured by EEMB
CO., LTD.
5.1.0 Basic Specification(T=25℃ )
Item Symbol Content Criterion
VDET1 Over charge detection voltage(For reference) 3.65±0.05V/cell
tVDET1 Over charge detection delay time 0.96S-1.40S
Over charge Protection
VREL1 Over charge release voltage(For reference) 3.45±0.1V/cell
VDET2 Over discharge detection voltage (For reference) 2.5±0.1V/cell
tVDET2 Over discharge detection delay time 115ms-173ms
Over discharge protection
VREL2 Over discharge release voltage(For reference) 3.0±0.1V/cell
Limited to Max peak value
current Peak value(A) Constant time (S) 10A 3S
Limited to Max loading
current Constant (A) 7A
Detection condition Exterior short circuit
Short protection Release condition Cut short circuit
Interior resistance RDS Main loop electrify resistance RDS≤70mΩ
Current consumption IDD Current consume in normal operation 20μA Type 50μA Max
Document Name Document No. Ver Date Page
SLF7H12-L
Specification ZJQM-RD-SPC-A0176 0.0 2014/10/15 6/8
5.2.0 PCM General Circuit Diagram(FYI)
6. Battery Pack’s Dimension(For reference)
Shell’s dimension
L（max）=150mm
W（max）=65mm
H（max）=95mm
7. Battery pack’s voltage and internal resistance
Voltage：12.8~13.6V
Internal Resistance：≤350mΩ
8. Warranty
One year warranty after the date of production
Document Name Document No. Ver Date Page
SLF7H12-L
Specification ZJQM-RD-SPC-A0176 0.0 2014/10/15 7/8
9. Matters needing attention
Strictly observes the following needing attention. EEMB will not be responsible for any accident occurred
by handling outside of the precautions in this specification.
! Danger
z Strictly prohibits heat or throw cell into fire.
z Strictly prohibits throw and wet cell in liquid such as water、gasoline or drink etc.
z Strictly prohibits use leave cell close to fire or inside of a car where temperature may be above 60℃.
Also do not charge / discharge in such conditions.
z Strictly prohibits put batteries in your pockets or a bag together with metal objects such as necklaces.
Hairpins, coins, or screws. Do not store or transportation batteries with such objects.
z Strictly prohibits short circuit the (+) and (-) terminals with other metals.
z Do not place Cell in a device with the (+) and (-) in the wrong way around.
z Strictly prohibits pierce Cell with a sharp object such as a needle.
z Strictly prohibits disassemble or modify the cell.
z Strictly prohibits welding a cell directly.
z Do not use a Cell with serious scar or deformation.
z Thoroughly read the user’s manual before use, inaccurate handling of lithium ion rechargeable cell
may cause leakage, heat, smoke, an explosion, or fire, capacity decreasing.
! Warning
z Strictly prohibits put cell into a microware oven, dryer, or high-pressure container.
z Strictly prohibits use cell with dry cells and other primary batteries, or new and old battery or batteries
of a different package, type, or brand.
z Stop charging the Cell if charging is not completed within the specified time.
z Stop using the Cell if abnormal heat, odor, discoloration, deformation or abnormal condition is
detected during use, charge, or storage.
z Keep away from fire immediately when leakage or foul odor is detected.
z If liquid leaks onto your skin or clothes, wash well with fresh water immediately.
z If liquid leaking from the Cell gets into your eyes, do not rub your eyes. Wash them well with clean
edible oil and go to see a doctor immediately.
! Caution
z Before using the Cell, be sure to read the user’s manual and cautions on handling thoroughly.
z Charging with specific charger according to product specification. Charge with CC/CV method.
Strictly prohibits revered charging. Connect cell reverse will not charge the cell. At the same time, it
will reduce the charge-discharge characteristics and safety characteristics, this will lead to product heat
and leakage.
z Store batteries out of reach of children so that they are not accidentally swallowed.
z If younger children use the Cell, their guardians should explain the proper handling.
z Before using the Cell, be sure to read the user’s manual and cautions on handling thoroughly.
z Batteries have life cycles. If the time that the Cell powers equipment becomes much shorter than usual,
the Cell life is at an end. Replace the Cell with a new same one.
Document Name Document No. Ver Date Page
SLF7H12-L
Specification ZJQM-RD-SPC-A0176 0.0 2014/10/15 8/8
z When not using Cell for an extended period, remove it from the equipment and store in a place with
low humidity and low temperature.
z While the Cell pack is charged, used and stored, keep it away from objects or materials with static electric
charges.
z If the terminals of the Cell become dirty, wipe with a dry clothe before using the Cell.
z Storage the cells in storage temperature range as the specifications, after full discharged, we suggest
that charging to 12.8~13.6V with no using for a long time.
z Do not exceed these ranges of the following temperature ranges：
Charge temperature range : 0℃ to 45℃;
Discharge temperature range : -20℃ to 60℃.
Store less than 1 month : -20℃ - +60℃
Store less than 3 months: -20℃ - +45℃
Store less than 1 year : -20℃ - +25℃
! Special Notice
Keep the cells in 50% charged state during long period storage. We recommend to charge the
battery up to 50% of the total capacity every 3 months after receipt of the battery and maintain the
voltage 12.8~13.6V. And store the battery in cool and dry place.
EEMB reserves the final explanation. Please use battery strictly according to specification. EEMB will not be responsible for any
illegal operation. EEMB keeps the right to change product specifications without previous notice. If any question, please consult
manufacturer
