24V 15ah Electric Bicycle Li-ion Battery Rechargeable E Bike Battery Pack

24V 15ah Electric Bicycle Li-ion Battery,Rechargeable Bicycle, E Bike Electric

About this item:

[BMS] High quality electric core and equipped with a BMS protective plate, prevent over charge, over discharge, over current and short circuit and ensure the long term use of your Bike Motor and your ebike battery.
[Quality] Every Lithium battery have pass the appearance and function test before shipment. The E-bike battery charge cycle exceeds 1000 times, life expectancy of up to 5 years. High quality imported Battery Cell.The Lithium Battery Pack is widely used in electric bicycles. Built-in genuine A grade lithinum cell.
[Features] The electric bike battery with battery base that will fit for most bike frame. //Lock with keys securely locks the mount on bike frame, prevents the battery from being stolen.// Lighted battery LED power Indicator, inform you charge your battery on time. //With on/off button, help you save more power.

Battery specifications:

No.	Items	Specifications		Remark
1	Capacity for assembled cell discharging by 0.2C	≥14.8AH		Standard discharging method
2	Battery Voltage	25.8V		Delivery voltage, Within 10 days from Factory
3	Standard charge condition	Charge with 0.2C constant current and 28.8Vconstant voltage, charge to 28.8V continue charging till current declineto ≤0.01C		Charge voltage: 28.8V±0.02V Charge current:0.2C
4	Maximum charge current		15A	For continuous charging mod
5	Maximum discharge current		15A	For continuous discharge mod
6	Standard discharging method	0.2C constant current discharge to 16V,
7	Internal Impedance	Assemblage Impedance		Measure two sides of the drawing line after assembling.. .
8	Net	3.9Kg

Safty performance:

No.	Items	Test Method and Condition	Criteria
1	Thermal exposure test	Each fully charged cell, stabilized at room temperature, is placed in a circulating air-convection oven. The oven temperature is raised at a rate of 5 °C/min ± 2 °C/min to a temperature of 130 °C ± 2 °C. The cell remains at this temperature for 10 min before the test is discontinued.	No fire, No explosion
2	Low pressure	Each fully charged cell is placed in a vacuum chamber, in an ambient temperature of 20~25℃. Once the chamber has been sealed, its internal pressure is gradually reduced to a pressure equal to or less than 11.6 kPa (this simulates an altitude of 15240 m) held at that value for 6 h.	No leakage, No fire, No explosion
3.	Short test	The fully charged battery is to be short-circuited by connecting the positive and negative terminals of the battery with resistance load not exceed 100mΩ. Tests are to be conducted at room temperature 20~25℃.	No fire, No explosion The Temperature of the Battery surface not exceeded than 150℃
4	Over Discharge	(After standard charge. Cells are discharged at constant Current of 0.2C to 2.0V, and the positive and negative terminal is connected by a 30Ω wire for 24 hours. Cell Condition: Fresh, Fully charged cell.)	No fire, No explosion
5	Over charge test	After standard charge, continue to charge with a constant voltage 4.8V per a cell, holding 8h.	No leakage, No fire, No explosion
6	Soak Test	Put the batteries into clean water, be soaked for 24 hours.	No break, No fire

Handling of Cells:

1. Consideration of strength of film package

1) Soft Aluminum foil

Easily damaged by sharp edge parts such as pins and needles, Ni-tabs, so don’t strike by those sharp parts.

2) Sealed edge may be damaged by heat above 100°C, bend or fold sealed edge.

2. Prohibition short circuit

Never make short circuit cell. It generates very high current which causes heating of the cells and may cause electrolyte leakage, gassing

or explosion, that are very dangerous.

The LIP tabs may be easily short-circuited by putting them on conductive surface.

Such outer short circuit may lead to heat generation and damage of the cell.

An appropriate circuitry with PCM shall be employed to protect accidental short circuit of the battery pack.

3. Mechanical shock

LIP cells have less mechanical endurance than metal-can-cased LIB.

Falling, hitting, bending, etc. may cause degradation of LIP characteristics.

4. Handling of tabs

The battery tabs are not so stubborn especially for aluminum tab.

Don’t bend tab.

Do not bend tabs unnecessarily.

Product Tags:

15ah Electric Bicycle Li-ion Battery

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