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Deep cycle lithium battery 12V 3Ah with BMS protection for back up power

China Shenzhen Topband Battery Co., Ltd certification
China Shenzhen Topband Battery Co., Ltd certification
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Deep cycle lithium battery 12V 3Ah with BMS protection for back up power

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Large Image :  Deep cycle lithium battery 12V 3Ah with BMS protection for back up power

Product Details:

Place of Origin: China
Brand Name: Topband
Certification: ISO9001, ISO14001
Model Number: TB1203F-S120A

Payment & Shipping Terms:

Minimum Order Quantity: 10pcs
Price: Negotiation
Packaging Details: Standard carton or customized carton
Delivery Time: 2-3 weeks for samples, 4-6 weeks for mass production
Supply Ability: 1000pcs per day
Detailed Product Description
Battery Type: LiFePO4 Voltage: 12.8V
Capacity: 3Ah Pack Mode: 4S1P
Weight: 0.5kg Dimension: 151*35*94mm
High Light:

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1. Specification


ITEM Specifications
Battery type LiFePO4 Battery
Nornimal Voltage 12V
Nornimal Voltage 3Ah
Charging Method CC-CV (constant voltage with limited current)
Charge operating temperature 0°C~45°C
Discharge operating temperature -20°C~60°C
Life cycle time >2000times(100%DOD)
Operating temperature
(surface temperature)
Charge : 0 to 50
(recommended recharge release < 45°C)
Discharge: -20 to 75
(recommended re-discharge release < 60°C)
Storage temperature
(Recovery 90% after storage)
1.5 year -30~25°C(1*)
3 months -30~45°C(1*)
1 month -30~60°C(1*)



2. Dimension drawing:

Deep cycle lithium battery 12V 3Ah with BMS protection for back up power 0


3. Battery advantages:

  • 1) Safe performance
  • 2) Longest cycle life
  • 3) Environment friendly
  • 4) Fast charging


4. Protective circuit specification

    The batteries are supplied with a LiFePO4 Battery Management System (BMS)that can monitor and optimized each single prismatic cell during charge & discharge, to protect the battery pack overcharge, over discharge, short circuit. Overall, the BMS helps to ensure safe and accurate running.


NO. Items Content Specification
5.1 Over charge Over-charge protection for each cell 3.80±0.05V
Over-charge release for each cell 3.60±0.05V
Over-charge release method Under the release voltage
5.2 Over discharge Over-discharge protection for each cell 2.00±0.08V
Over-discharge release for each cell 2.30±0.10V
Over-discharge release method Charging recovery
5.3 Over current Discharge over current protection 35~48A
Protection delay time 14~26ms
Over current release method Release after cutoff the load.
5.4 Short Short circuit protection Available
5.5 Static power current consumption≤60uA



5. Product overview

Deep cycle lithium battery 12V 3Ah with BMS protection for back up power 1

Deep cycle lithium battery 12V 3Ah with BMS protection for back up power 2



6. Battery operation instruction

Charge and discharge

  • 1 Charging current:Do not surpass the largest charging current that specification stipulated.
  • 2 Charging voltage:Do not surpass the highest limited voltage that specification stipulated.
  • 3 Charging temperature:within temperature scope that specification stipulated.
  • 4 Charge with constant current, then with the constant voltage, no reverse charge, which is dangerous.
  • 5 Special note:

Short time doesn't affect the use of the battery overcharge too, but for a long period of time over discharge or over charge can affect the function of the battery failure, or the battery can't use permanent, appear serious safety hazards, need long time floating please use the recommended floating model specification. Battery when not in use for a long time, because of its own self-discharge characteristics can also cause discharge, to prevent the occurrence of a discharge, battery should maintain a certain capacity, maintain the voltage at 50% state of SOC.


7. Transportation:


* Based on the character of cell, proper environment for transportation of LiFePO4 battery pack need to be created to protect the battery.

* Battery should be stayed in the warehouse 15℃~35℃ where it’s dry, clean, shade, and well-ventilated.

* The battery should be stored in 50% SOC during transportation.

* The battery need to be charged every 6 months if out of use

* Keep the battery against dropping, turning over and serious stacking during loading. 

Contact Details
Shenzhen Topband Battery Co., Ltd

Contact Person: Jerry Yang

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