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| Price | Negotiation |
| MOQ | Negotiation |
| Delivery Time | 5-8 working days |
| Brand | BAIDUN |
| Place of Origin | Guangdong, China |
| Certification | CE、FC、MSDS、ROHS |
| Model Number | 3.2V280Ah |
| Packaging Details | Use high-density foam to fix, one box contains two batteries.The box size is 370*260*240mm, |
| Payment Terms | Credit card, T/T,PayPal |
| Supply Ability | ≥30000 pieces/month |
| Usage | Electric Car Battery Cell and Home energy storage | Place of Origin | Guangdong, China |
| Nominal voltage | 3.2V | Warranty | 3YEARS |
| Size | 174*72*207mm | Packaging Details | Use high-density foam to fix, one box contains two batteries.The box size is 370*260*240mm, |
| Lifecycle | 6000 Times | Internal Resistance: | ≤0.25mΩ |
| Battery Size | Lithium ion battery 280ah | Model Number | 3.2V280Ah |
| Supply Ability | ≥30000 pieces/month | Terminal | Welding studs |
| Certification | CE、FC、MSDS、ROHS | Weight | 5.6KG |
| Brand Name | BAIDUN | Payment Terms | Credit card, T/T,PayPal |
| Screw Hole | M6 | Price | Negotiation |
| Delivery Time | 5-8 working days | Minimum Order Quantity | Negotiation |
| # | Item | Parameter | Remark | |
| 1 | Nominal Capacity | 280.0 Ah | (25±2) °C, Standard charge and discharge | |
| 2 | Typical Voltage | 3.2 V | ||
| 3 | AC Impedance Resistance( 1 KHz) | <0.25 mΩ | ||
| 4 | Standard charge and discharge | Charge / discharge current | 0.5 C/0.5 C | |
| Cut off voltage of charge / discharge | 3.65 V/2.5 V | |||
| 5 | Maximum charge / discharge current | Continuous charge / discharge | 1 C/1 C | According to continuous / pulse charge and discharge ammeters |
| Pulse charge / discharge (30s) | 2C/2C | |||
| 6 | Recommended scope of SOC | 10% 〜90% | N.A. | |
| 7 | Charging Temperature | 0 °C〜55 °C | According to continuous / pulse charge and discharge ammeters | |
| 8 | Discharging Temperature | -20 °C~55 °C | ||
| 9 | Storage temperature | Short term (within 1 month) | -20°C-45°C | N.A. |
| Long term (within 1 year) | 0°C 〜35°C | |||
| 10 | Storage humidity range | <90% | ||
| 11 | Self^discharge rate per month | <3%/month | Temperature: (25±2)°C, Storage scope of SOC: 30% 〜50%SOC | |
| 12 | Dimension | Width | 173.7 ±0.5 mm | Refer to Appendix I |
| 13 |
Thickness (under 300+20 kgf, 30%〜40% SOC ) |
72.0 ±1.0 mm | ||
| Average thickness (200 pcs, under 300+20 kgf, 30%〜40% SOC ) | 72.0 ±0.5 mm | |||
| 14 | High (total) | 207.5 ±0.5 mm | ||
| 15 | High (subject) | 204.6 ±0.5 mm | ||
| 16 | Tabs Distance | 123.0±0.3 mm | ||
| 17 | Battery weight | 5.42±0.3 kg | ||
Main Performance
| No. | Item | Requirements | Measuring Procedure |
| 1 | Rate discharge performance at25°C |
Discharge capacity/nominal capacity×l00% A) 0.5C(A)>100% B) 1.0C (A)>98% |
After standard charge and Ih rest, discharge to 2.5V cutoff with the current of 0.5 C (A), 1.0C (A), respectively. If the discharge capacity fails to meet the technical requirements, this test is allowed to be repeated three times |
| 2 | Discharge performance at different temperature |
Discharge capacity/nominal capacity×100 % A) 55°C>95% (Cutoff 2.5V) B) -20°C>70% (Cutoff 2.0V) |
Measure the initial capacity and state of the battery: A) after standard charge and 5h rest at 55°C, discharge to 2.5V cutoff with the current of 0.5C(A)； B) after standard charge at 25±2°C and 24h rest at -20°C±2°C, discharge to 2.0V cutoff with the current of 0.5C(A). |
| 3 |
The capacity retention and recovery at 25°C |
Capacity Retention ≥ nomi nal capacity×95 % Capacity Recovery ≥ nomi nal capacity×97 % |
Measure the initial capacity and state of the battery, after standard charge and stored for 28 days, discharge to 2.5V cutoff with the current of 0.5C (A), calculate the remaining capacity the retention can be expressed as a percentage of nominal capacity. After standard charged and 30mins rest, calculate the discharging capacity (Ah), the recovery can be expressed as a percentage of nominal capacity. The recovery is measured with discharge current 0.5C (A) with 2.5V cut-off at (25±2) °C. |
| 4 |
cycle life at 25 °C |
>6000 cycle @0.5C/0.5C | Under the 300kgf clamp, after standard charged and 30mins rest, discharge to 2.5V cutoff with the current of 0.5C(A) at (25±2) °C, and then start the next cycle, end with the capacity decreasing to 80% of the |
| initial capacity. The number of cycles is defined as the cycle life of the battery. | |||
| 5 |
cycle life at 45 °C |
>2500 cycle @0.5C/0.5C |
Under
the
300kgf
clamp,
after
standard
charged
and
30mins
rest,
discharge
to
2.5V
cutoff
with
the
current
of
0.5C(A)
at
(45±2)
°C,
and
then
start
th
|
| 6 |
End of life managem ent |
capacity/nominal capacity <70% |
During
the
use
of
the
battery,
the
battery
s
hall
be
stopped
when
the
end
of
life
regul
ations
are
exceeded. |
Baidun
has
been
cultivating
new
energy
Lifepo4
lithium
battery
for
12
years!
The
main
products
are
lithium
iron
phosphate
batteries,
lithium
titanate
batteries,
ternary
lithium
batteries,
lithium
ion
battery
cells,
battery
packs,
portable
power
supplies,
household
energy
storage,
commercial
off-grid
energy
storage
and
solar
system
chargers
for
solar
energy
storage
systems.
The
product
application
covers
the
three
major
fields
of
"power,
consumption
and
energy
storage".
Widely
used
in:
various
electric
vehicles,
photovoltaic
energy
storage,
household
energy
storage,
signal
system,
emergency
lighting
system,
communication
equipment,
solar
energy
and
wind
energy
storage
system,
backup
power
supply
for
fire
fighting
equipment,
UPS
(uninterruptible
power
supply),
portable
digital
products,
etc.
industry.
Baidun
has
always
adhered
to
the
business
philosophy
of
high
safety,
high
quality
and
environmental
protection
as
its
core
values.
Provide
customers
with
the
best
overall
power
solutions,
OEM/ODM
services
and
comprehensive
after-sales
support
to
meet
the
different
needs
of
customers!
Integrity
and
professionalism,
this
is
also
our
responsibility!
Why choose Baidun
1.
We
provide
one-stop
power
solutions
to
save
design
time
and
cost
for
customers:
--
Package
Design/Case
Design/BMS
Design
2.
Strict
quality
control
system
to
improve
the
competitiveness
of
customers:
--
100%
PCM
test
passed
IQC
--
OQC
100%
capacity
test
3.
On-time
delivery
and
excellent
service:
--
Fast
delivery
within
10
days
when
in
stock
--
8
hour
response
and
48
hour
resolution
4.
Experienced
R&D
team
to
become
a
professional
power
solution
consultant
for
customers:
--
Comprehensive
battery
testing
center
(safe
and
reliable
testing)
——Powerful
ODM
capabilities
to
meet
customized
design
requirements
FAQ
Q1: How to calculate the shipping cost?
A: Please contact us before placing an order. We will calculate the specific shipping cost according to different countries, different postal codes and different order weights. We will provide you with the best shipping method and accurate shipping.
Q2: What are the acceptable delivery terms?
A: There are many delivery terms we can accept, but currently the most commonly used are FOB, CIF, EXW, DEQ, DDP, DDU, express
Q3: Can I get free samples?
A: Usually we do not provide free samples, but we can refund the sample cost when the buyer places a large order.
Q4: The delivery time set by your system is 15 days. Do I really need to wait that long?
A: No, if it is not a customized order, we usually send it out within 7 working days.
Q5: Does the shipping method to our country include tax?
A: It depends on the country and shipping method you choose. Most Asian countries, most European countries, the United States and Canada have tax-included shipping channels.
Q6: How can I confirm the quality of the products you sent me?
A: No matter how much you order, we will send you test videos and pictures of each product before shipping. Test the voltage and internal resistance of each battery.
Q7: The battery is so heavy, is it easy to break on the road?
A: This is also an issue that we are very concerned about. After long-term improvement and verification, our packaging is now very safe and reliable. When you open the package, you will definitely feel our sincerity.
Q8: Where is the main market of BAIDUN?
A: With many years of experience, we cooperate with many customers all over the world. Mainly from the top 3 markets are North America, Europe and Asia, and a few other countries.
Q9: What are the accepted payment types and currencies?
A: 1) The payment types we accept: credit card, CC, paypal and T/T.
2) Accepted currencies: US dollar, Euro, Japanese yen, Canadian dollar, Australian dollar, Hong Kong dollar, British pound, Chinese yuan, Swiss franc
We provide one-stop battery power solutions, including cell selection, battery pack assembly, style design, OEM/ODM services and comprehensive after-sales support.
Customer
first
24-hour
online
service
to
solve
any
order
problems
for
you!
