BYD COMPANY LIMITED
LP053048AH Specification
File No.：LP053048AH-0808-01
Edition ：A Revision：0
Page
：1/ 7
Specification
For
Customer
WAMTECHNIK
Lithium Ion Rechargeable Battery
Battery Type: LP053048AH
Prepared： Cui Hongbao
Date：2008/08/08
Checked： Zhou Wendui
Date：2008/08/08
Approved： Zhou Wendui
Date：2008/08/08
Confirmed：
Date：
(Customer)
BYD Seal
Customer Seal
Effective Date：
Edit Record
Edition
A0
Prepared
Edit Cause
First Publish
Approved
Effective
Date
BYD COMPANY LIMITED
LP053048AH Specification
File No.：LP053048AH-0808-01
Edition ：A Revision：0
Page
：2/ 7
1. Scope
The specification describes the requirements for the lithium ion rechargeable battery
supplied by BYD COMPANY LIMITED
2. Kind of Products Specified
2.1 Name
2.2 Type
Lithium Ion Rechargeable Battery
LP053048AH
3. Basic Characteristics
3.1 Nominal Voltage
3.2 Capacity
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
3.11
3.12
3.7V
Minimum 700mAh
(From4.20V to 2.75V cut-off at discharge current 0.2C)
Charge Voltage
4.2V
Max Charge Current
1C
Charge Method
CC / CV (Constant Current / Constant Voltage)
Max Discharge Current 1.5C (for continuous discharging mode)
Discharge Cut-off Voltage 2.75V / cell
Operating Temperature Charge
0 ~ +45℃
Discharge
-20 ~ +60℃
Storage Temperature
1 month
-20 ~ +60℃ (*1)
3 months
-20 ~ +45℃ (*1)
1 year
-20 ~ +25℃ (*1)
Relative Humidity
65±20%
Weight
about 18g
Dimension (Bare Cell)
Thickness
Max 5.5mm
Width
Max 30.1mm
Height
Max 48.0mm
Note (*1): Capacity recovery rate should be more than 80% under the shipment status.
4. Shape and Physical Dimensions
In accordance to the attached drawing.
5. Appearance
Defects, such as scratches, flaws, dirty spots, rust, deformation, discoloration,
leakage, etc., which damage commercial values shall not be presented.
BYD COMPANY LIMITED
LP053048AH Specification
File No.：LP053048AH-0808-01
Edition ：A Revision：0
Page
：3/ 7
6. Specification
6.1 Electrical Characteristics
Items
6.1.1 Complete
Charge
6.1.2 Initial
Capacity
6.1.3 Cycle Life
6.1.4 Internal
Impedance
6.1.5 Temperature
“Complete charge” means charging
the battery with 1C of constant current
N/A
and 4.20V constant voltage for 2.5
hours.
The capacity means the discharge
capacity of the battery, which is
Initial capacity:
measured with discharge current 0.2C
≥700mAh
to 2.75V cut-off within 1hour after
complete charge.
Measure the capacity after 400 cycles
Capacity≥80% of
of complete charge and discharge at
Initial capacity
1C current to 3.00V cut-off.
Initial
≤80mΩ
Internal resistance measured at 1KHz
After 400cycles
after complete charge.
≤160mΩ
Capacity comparison at each temperature, measured with
constant discharge current 0.2C to 2.75V cut-off after
complete charge at 25℃.
If charge temperature and discharge temperature is not the
same, the interval for temperature change comes to 3 hours.
Percentage as an index of the capacity compared with 100%
at 25℃.
Charge
Temperature
25℃
6.1.6 Storage
6.1.7 Voltage
Performances
Conditions and others
Discharge Temperature
-10℃
0℃
25℃
60℃
60%
70%
100%
95%
Capacity after 28days storage at 25℃ Retention Capacity:
from complete charge.
≥80%
Capacity after 7 days storage at 60℃ Recovery Capacity:
from complete charge.
≥85%
As of shipment.
3.75 – 3.9V
BYD COMPANY LIMITED
LP053048AH Specification
File No.：LP053048AH-0808-01
Edition ：A Revision：0
Page
：4/ 7
6.2 Mechanical Characteristics
Items
Conditions and Others
The battery is to be subjected to simple harmonic motion with
amplitude of 0.8mm. The frequency is to be varied at the rate
of 1 Hz per minute between 10 and 55 Hz, and return is not
6.2.1 Vibration
less than 90 nor more than 100 min. The battery is to be tested
in three mutually perpendicular directions.
The battery is to be dropped from a height of 1.2m with
6.2.2 Drop Test
3cycles.
Performance: The battery shall not rupture, smoke, catch fire, vent or leak.
6.3 Safety Characteristics
Items
6.3.1 Crush Test
6.3.2 Hot Oven
Conditions and others
The charged battery shall be crushed between two flat
surfaces. The force for the crushing is applied by a hydraulic
ram with a 32mm diameter piston. The crush is continued until
a pressure reading of 17.2Mpa is reached, applied force of
13kN. Once the maximum pressure is obtained it is released.
The charged battery is to be heated in a gravity convection or
circulating air oven. The temperature of the oven is raised at a
rate of 5±2℃/min to a 130±2℃. The oven is to remain for 10
minutes at 130±2℃ before the test is discontinued.
The battery is to be short-circuited by connecting the positive
and negative terminals of the battery with a circuit load having
a maximum resistance of 0.1Ω. The battery is to discharge
6.3.3 Short Circuit
until it has reached a completely discharged state of less than
0.1 volts and the battery case temperature has returned to ±
10°C of ambient temperature.
The battery shall be charged at 3C current with a voltage limit
6.3.4 Overcharge
of 4.6V.
6.3.5 Reverse
The battery shall be reverse charged at 1C current to –10V for
Charge
4 hours.
Performance: The battery shall not rupture, smoke or catch fire.
7. Standard Environmental Test Condition
Temperature: 25±2℃
Relative Humidity: 65±20%
(unless otherwise specified)
BYD COMPANY LIMITED
LP053048AH Specification
File No.：LP053048AH-0808-01
Edition ：A Revision：0
Page
：5/ 7
8. Required Protection Functions
To insure the safety, charger and the protection circuit shall be satisfied following items.
As safety device, please use in combination with the temperature fuse or polyswitch.
The standard charge method is CC / CV (Constant current / Constant voltage).
Charger
No.
Items
Condition
1
Charge Termination Voltage
4.20 V
Protection function (for reference)
2
Excess Charge Detection Voltage
4.25V-4.35V
3
Excess Charge Release Voltage
3.85V-4.25V
4
Discharge Termination Voltage
2.75 V
5
Excess Discharge Detection Voltage
2.20 V-2.40V
6
Excess Discharge Release Voltage
2.40V-3.00V
7
Excess Current Detection Value
Around 3C
9. Warranty period
Warranty period of this product is 12 months from manufacture code.
10. Product Liability
You are kindly requested to use the battery which is delivered from BYD COMPANY
LIMITED in strict accordance with the specification and remarks include at the end of
the document.
Due to improper usage of the battery, an accident or a fire may occur due to the
battery generating heat, catching fire or rupture, smoke.
BYD COMPANY LIMITED will not guarantee against any accidents occurring due to
use outside those written in this specification.
11. Prior Notice of Change
In case specification, materials, production process, and control system for the
products are changed, the notice of change in writing together with quality and
reliability data is informed in advance to the buyer.
12. Indications on Battery Pack
The following warnings should be indicated on the battery packs.
*Use a specified charger by (the manufacturer).
*Do not throw the battery in fire, or add heat.
*Do not short-circuit the battery terminals.
*Do not disassemble, alter, or solder the battery.
BYD COMPANY LIMITED
LP053048AH Specification
File No.：LP053048AH-0808-01
Edition ：A Revision：0
Page
：6/ 7
Please read and follow the handling instructions for the battery before use. Improper
use of the battery may cause heat, fire, rupture, damage or capacity deterioration of the
battery.
1. Do not put the battery into a fire, or heat the battery, do not store the battery in high
temperature environment.
2. Do not connect the battery reversed in positive (+) and negative (-) terminals in the
charger or equipment.
3. Do not let the battery terminals (+ and -) contact a wire or any metal (like a metal
necklace or a hairpin) with which it carried or stored together, may cause short-circuit.
4. Do not drive a nail in, hit with a hammer, or stamp on the battery, do not strike the
battery in other ways.
5. Do not disassemble or alter the batteries' outside structure.
6. Do not submerge the battery in water, do not wet the battery when store the battery.
1. Battery should be charged and discharged with proper charger, in compliance with
correct operation contents.
2. Do not use the battery with other maker's batteries, different types and /or models of
batteries such as dry batteries, nickel-metal hydride batteries, or nickel-cadmium
batteries, or new and old lithium batteries together.
3. Do not leave the battery in a charger or equipment if it generates an older and/or heat,
changes color and/or shape, leaks electrolyte, or cause any other abnormality.
4. Do not discharge the battery continuously when it is not charged.
1. In case young children use the battery, instruct them on the contents of the instructions
and ensure the battery is correctly used by them at all times.
2. The battery was inspected carefully by QA before shipment to confirm with the
specifications. However, in the case any abnormality of bad smell or heat, etc, arise
after purchase, bring it and communicate with us.
3. For long-term storage, please charge at 0.5C for about one hour in advance.
4. Do not use the battery in other than the following conditions, otherwise, the battery
might cause heat generation, damage, or deterioration of its performance.
Operating environment:
Charge
: 0℃ - +45℃
Discharge
: -20℃ - +60℃
Store less than 1 month
: -20℃ - +60℃
Store less than 3 months : -20℃ - +45℃
Store less than 1 year
: -20℃ - +25℃
File No.：LP053048AH-0808-01
BYD COMPANY LIMITED
Edition ：A Revision：0
Page
LP053048AH Specification
：7/ 7
APPROVAL SHEET
BYD LP053048AH
MAX 5.5
1 (BARE CELL)
MAX 48.0
3
MAX 30.1
7
NONE
NONE
NONE
6
CONTACT TAG
NONE
NONE
NONE
5
MARK
NONE
NONE
NONE
4
NICKEL STRAP
0.15x3.0x15
1
3
INSULATION PLATE
LP053048AH
1
2
OTHER
OUTER TUBE
1
CELLS
NO.
NAME
NONE
LP053048AH
SIZE
NONE
NONE
1
LI-ION
QTY
NOTE
BYD COMPANY LIMITED
DRAWN
Cui Hongbao
DATE
2007/04/17
CHECKD
Zhou Wendui
DATE
2007/04/17
APPRVD
Zhou Wendui
DATE
2007/04/17
SCALE
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