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High Energy Density 300Ah 12v Battery Deep Cycle Pollution - Free

China Shenzhen Topband Battery Co., Ltd certification
China Shenzhen Topband Battery Co., Ltd certification
We have cooperated with Topband for several years, we think Topband is a reliable supplier with quality products, and professional technical support!

—— Stephan Moberg

In energy storage system project, Topband team provides expertise support and excellent product at reasonable price. Much appreciated for their effort

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High Energy Density 300Ah 12v Battery Deep Cycle Pollution - Free


Large Image :  High Energy Density 300Ah 12v Battery Deep Cycle Pollution - Free

Product Details:

Place of Origin: China
Brand Name: Topband
Certification: CE, UN38.3, ISO9001, ISO14001
Model Number: TB-BL12300F-S103A

Payment & Shipping Terms:

Minimum Order Quantity: 10
Price: Negotiable
Packaging Details: standard export carton
Delivery Time: 2~4weeks for samples; 4~6weeks for mass production
Payment Terms: L/C, T/T
Supply Ability: 450Mwh/year
Detailed Product Description
Material: Lifepo4 Nominal Voltage: 12.8V
Normal Capacity: 300Ah Communication Function: Bluetooth
Dimension: 520x296x221mm Warranty: 2 Years
Life Time: More Than 2000 Times (100% DOD)
High Light:

Lithium Smart Battery


Lithium Phosphate Battery

High Energy Density 300Ah 12v Battery Deep Cycle Pollution - Free

1. Smart Lithium battery 12V 300Ah Specification

NO Items Description
Normal Specification
1 Nominal Voltage 12.8V
2 Normal Capacity 300Ah
3 Internal Resistance ≤20mΩ
4 Series-Parallel application Not allowed
5 Communication function /
Standard Charge
6 Charge operation temperature range 0~45℃
7 Normal charge voltage 14.6±0.1V
8 Recommended float charge voltage(for Standby use) 13.8±0.1V
9 Allowed MAX constant charge current 80A@Battery initial Temp 25±5℃
10 Recommended charge current ≤80A
Standard Discharge
11 Discharge operation temperature range -20~60℃
12 Output Voltage Range 8.0~14.6V
13 Allowed MAX constant discharge current 80A @Battery initial Temp 25±5℃
14 Discharge peak current 100A/30min,350A/3s
15 Discharge end voltage 8.0V

























2. Smart Lithium battery 12V 300Ah Electrical Characteristics & Test Condition

    @Testing Conditions: Ambient Temperature: 25±5℃; Huminity:45%~75%.

NO Items Criterion Condition
1 Min Capacity ≥293Ah Rest for 1 hour after fully charged, then discharge with 0.33C current until the battery reaches the cutoff voltage. you can stop and define the Discharging current*time value (Ah) as battery capacity.



Cycle life (DOD%100)


Charge / CC(0.33C)/CV(14.6V);

End current : 0.05C;

Rest time : 1h;

Discharge / CC(0.5C);

End voltage : 8.0V;

Repeat above process until discharge capacity is no more than 80% of normal value. Accumulated times is defined as cycle life.



Discharge Temperature


-20℃ ≥70% At 25±5℃ discharge the battery with the current of 0.33C to the cut-off voltage. Store the battery at various temperatures for 2h and discharge the battery with 0.33C to the cut-off voltage. Record the ratio between discharging & charging capacity.
0℃ ≥80%
25℃ 100%
55℃ ≥95%
4 Charge Retention ability remain capacity≥90% Charge the battery to full capacity and store it for 28days, and then discharge it with 0.33C to the cut-off voltage.



3. Smart Lithium battery 12V 300Ah feature

  1. High energy density
  2. High working voltage for single battery cells
  3. Pollution-free
  4. Long cycle life
  5. No memory effect
  6. Capacity, resistance, Voltage, platform time consistency is good
  7. With short-circuit production function, safe and reliable
  8. Factory price & High quality
  9. Good consistency, low self discharge
  10. Light weight, small size
  11. High discharge rate
  12. Quality and security guaranted,with CE,ROHS approval.
  13. The lifepo4 battery pack is widely used for electric bicycle,golf car,electric bike,electric wheelchair,power tools,electric scooter,emergency light,etc

4. Application:

1. EV: pure electric car, pure electric bus, hybrid electric vehicles, hybrid electric bus, recreational vehicles, chill cars.

2. Storage: solar and wind complementary stored energy streetlights, energy storage systems, household energy storage.

3. Power Supply: communication base station power supply, utility power supply, communication industry, emergency power supply and other system standby power etc.


5. Dimension

High Energy Density 300Ah 12v Battery Deep Cycle Pollution - Free 0


6. Bluetooth Function

    Bluetooth function for battery pack, it can monitor the following features from smart phones:

  • Battery pack voltage
  • Battery current draw
  • Battery state of charge
  • Battery state of discharge
  • Battery cycles
  • Battery temperature
  • Remaining capacity
  • Designed capacity
  • Full capacity
  • AverageTime to Empty
  • AverageTime to Full
  • Series Number
  • Manufacturer name

High Energy Density 300Ah 12v Battery Deep Cycle Pollution - Free 1


Contact Details
Shenzhen Topband Battery Co., Ltd

Contact Person: Jerry Yang

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