6.4V 2800mah LiFePO4 Rechargeable Battery Pack 2S2P With JST Connectors

Brand Name:HKANON
Certification:CE
Model Number:6.4V2800mAh
Minimum Order Quantity:10PCS
Delivery Time:10 days
Payment Terms:L/C, D/A, D/P, T/T, Western Union, MoneyGram
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Location: Shenzhen Guangdong China
Address: Room 910, HeFaTouZi Building, QingQuan North Road, 2528 Block,YuCui Industrial Area, LongHua District,518053 Shenzhen China.
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Product Details

2S2P 6.4V 2800mah LiFePO4 Rechargeable Battery Pack with JST Connectors


Electrical Characteristics

Nominal Voltage - 6.4V

Nominal Capacity – 3000mAh

Energy - 19.2Wh

Internal Resistance - ≤90mΩ

Cycle Life -> 2000 cycles @1C 100%DOD( see below picture )

Months Self Discharge - <9%

Efficiency of charge - 100% @0.2C

Efficiency of discharge - 96~99% @1C

Standard Charge

Charging voltage - 7.3V +/- 0.1V

Charge mode - 0.2C to 7.3V , then 7.3V charge current to 0.02C (CC/CV)

Standard Charger current - 350mAh

Fast charge current - 1Amp

Charge cut off voltage - 7.3V ( 3.65V * 2 series )

Standard Discharge

Continuous Current - 3A

Max. Pulse Current - 6A (<5s)

Discharge cut off voltage – 5V ( 2.5V *- 2 series )

Rated power : 19.2W

Environmental

Charge Temperature - 0 ℃ to 45 ℃ (32F to 113F) @60±25% Relative Humidity

Discharge Temperature - -20 ℃ to 60 ℃ (-4F to 140F) @60±25% Relative Humidity

Storage temperature - 0 ℃ to 40 ℃ (32F to 104F) @60±25% Relative Humidity

Mechanical

Cell & Method - 3.2V 1500mAh 18650 lifepo4 cell -2S2P - 4PCS cells

Body casing – PVC + PET case

Battery Dimensions -40*145*70mm

Battery weight : 210g

Application

Led lights , easy to make in parallel or in series .



Lithium-ion vs Lead-Acid cost analysis


We take the example of a solar installation for a standalone building (Self Sufficient Home). The storage capacity for the battery is 50KWh.

The application need is summarized in the above table:

SPECIFICATIONSVALUE

Stored Energy
50KWH
Cycling frequency1 x discharge/charge per day
Average ambient temperature23°C
Expected Lifespan2000 Cycles, or 5.5 years

The costs of delivery and installation are calculated on a volume ratio of 6:1 for Lithium system compared to a lead-acid system. This assessment is based on the fact that the lithium-ion has an energy density of 3.5 times Lead-Acid and a discharge rate of 100% compared to 50% for AGM batteries.


Based on the estimated lifetime of the system, the lead-acid battery solution-based must be replaced 3 times. Lithium-Ion solution-based is not replaced during operation (2000 cycles are expected from the battery at 100% DoD cycles)


The cost per cycle, measured in € / kWh / Cycle, is the key figure to understand the business model. To calculate it, we consider the sum of the cost of batteries + transportation and installation costs (multiplied by the number of times the battery is replaced during its lifetime). The sum of these costs is divided by the net consumption of the system (50kWh per cycle, 365 cycles per year, 5.2 years of use).

China 6.4V 2800mah LiFePO4 Rechargeable Battery Pack 2S2P With JST Connectors supplier

6.4V 2800mah LiFePO4 Rechargeable Battery Pack 2S2P With JST Connectors

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